https://community.element14.com/challenges-projects/element14-presents/project-videos/w/documents/5201/diy-miniature-multimeter----episode-483en-USTelligent Community 12https://community.element14.com/challenges-projects/element14-presents/project-videos/w/documents/5201/diy-miniature-multimeter----episode-483Fri, 29 Jan 2021 08:24:00 GMT93d5dcb4-84c2-446f-b2cb-99731719e767:1433d454-10c5-4952-b6a0-97720a87e3d9Matthttps://community.element14.com/challenges-projects/element14-presents/project-videos/w/documents/5201/diy-miniature-multimeter----episode-483#commentsCurrent Revision posted to Documents by Matt on 1/29/2021 8:24:00 AM<br /> <p><span><a href="https://www.youtube.com/watch?v=7Kbc5S5ff98">www.youtube.com/watch</a></span></p> <p style="margin:0;padding:0px;">&nbsp;</p> <p style="background-color:#e9f6fc;border:1px solid #b8d7e5;margin:0;max-width:744px;padding:8px;"><span style="color:#000000;font-family:&#39;Open Sans&#39;, Arial, sans-serif;text-align:justify;">Breadboarding is often the start of great projects but measuring on Breadboards is often not so great. The standard multimeter leads don&#39;t fit into breadboard holes and alligator clips are needed to connect to the circuit. There must be a better way! Clem designs a tiny Multimeter dedicated to be used with a breadboard! Easy to connect, battery powered and it even has a WI-FI so you can view the readings on your phone! </span></p> <p style="margin:0;padding:0px;">&nbsp;</p> <p style="margin:0;"><span style="color:#393939;font-family:&#39;Helvetica Neue&#39;, Helvetica, Arial, sans-serif;font-size:13px;">Get the PCB here: </span><a class="jive-link-external-small" style="color:#ef6421;font-family:&#39;Helvetica Neue&#39;, Helvetica, Arial, sans-serif;font-size:13px;" href="https://aisler.net/p/BKDRSPYV" rel="noopener noreferrer nofollow" target="_blank" data-e14adj="t">https://aisler.net/p/BKDRSPYV</a></p> <h2><span style="color:#3334ca;">Bill of Material:</span></h2> <table class="jiveBorder" style="border:1px solid #C6C6C6;" border="1"> <thead> <tr> <th style="background-color:#f2f2f2;border:1px solid #C6C6C6;color:#505050;padding:6px;text-align:left;">Product Name</th> <th style="background-color:#f2f2f2;border:1px solid #C6C6C6;color:#505050;padding:6px;text-align:left;">Manufacturer</th> <th style="background-color:#f2f2f2;border:1px solid #C6C6C6;color:#505050;padding:6px;text-align:left;">Quantity</th> <th style="background-color:#f2f2f2;border:1px solid #C6C6C6;color:#505050;padding:6px;text-align:left;"><span><a id="e14-product-link-6ac01" data-at-areainteracted="rte-content" data-at-type="click" data-at-link-type="button" href="https://referral.element14.com/OrderCodeView?fsku=2819234,3154939,2855029,2753006,1834890,2857611,Avnet,2524076,3118166,1717759&nsku=98Y9917,21AH3301,79X3948,16AC9366,84R8632,57AC2481,AVNET,02AH5567,52AH7139,63W1138&COM=e14c-noscript&CMP=e14c-noscript&osetc=e14-noscript-tracking-loss" data-at-label="PRODUCT_BUY_KIT" class="e14-embedded e14_shopping-cart-far e14-button" onclick="event.preventDefault();e14.func.displayProduct(e14.meta.user.country, this, 'embedded-link', e14.func.getProductLinkJSON('6ac01'));" data-farnell="2819234~1,3154939~1,2855029~1,2753006~1,1834890~1,2857611~1,Avnet~1,2524076~1,3118166~1,1717759~1" data-newark="98Y9917~1,21AH3301~1,79X3948~1,16AC9366~1,84R8632~1,57AC2481~1,AVNET~1,02AH5567~1,52AH7139~1,63W1138~1" data-comoverride="" data-cmpoverride="" data-cpc="" data-avnetemea="" data-avnetema="" data-avnetasia="" >Buy Kit</a> </span></th> </tr> </thead> <tbody> <tr> <td style="border:1px solid #C6C6C6;padding:6px;">BAK Rechargeable Battery, 3.7 V, Lithium Polymer, 370 mAh, Connector</td> <td style="border:1px solid #C6C6C6;padding:6px;">BAK</td> <td style="border:1px solid #C6C6C6;padding:6px;">1</td> <td style="border:1px solid #C6C6C6;padding:6px;"><span><a id="e14-product-link-333db" data-at-areainteracted="rte-content" data-at-type="click" data-at-link-type="link" href="https://referral.element14.com/OrderCodeView?fsku=2819234&nsku=98Y9917&COM=e14c-noscript&CMP=e14c-noscript&osetc=e14-noscript-tracking-loss" data-at-label="PRODUCT_POPUP_OPEN"class="e14-embedded e14_shopping-cart-far e14-link" onclick="event.preventDefault();e14.func.displayProduct(e14.meta.user.country, this, 'embedded-link', e14.func.getProductLinkJSON('333db'));" data-farnell="2819234~1" data-newark="98Y9917~1" data-comoverride="" data-cmpoverride="" data-cpc="" data-avnetemea="" data-avnetema="" data-avnetasia="" >Buy Now</a> </span></td> </tr> <tr> <td style="border:1px solid #C6C6C6;padding:6px;">MIDAS Graphic OLED, 96 x 16 Pixels, White on Black, 3V, I2C, 33mm x 10mm, -40 &deg;C</td> <td style="border:1px solid #C6C6C6;padding:6px;">Midas</td> <td style="border:1px solid #C6C6C6;padding:6px;">1</td> <td style="border:1px solid #C6C6C6;padding:6px;"><span><a id="e14-product-link-665fc" data-at-areainteracted="rte-content" data-at-type="click" data-at-link-type="link" href="https://referral.element14.com/OrderCodeView?fsku=3154939&nsku=21AH3301&COM=e14c-noscript&CMP=e14c-noscript&osetc=e14-noscript-tracking-loss" data-at-label="PRODUCT_POPUP_OPEN"class="e14-embedded e14_shopping-cart-far e14-link" onclick="event.preventDefault();e14.func.displayProduct(e14.meta.user.country, this, 'embedded-link', e14.func.getProductLinkJSON('665fc'));" data-farnell="3154939~1" data-newark="21AH3301~1" data-comoverride="" data-cmpoverride="" data-cpc="" data-avnetemea="" data-avnetema="" data-avnetasia="" >Buy Now</a> </span></td> </tr> <tr> <td style="border:1px solid #C6C6C6;padding:6px;">MCM Wire Kit, Jumper, Copper, 0.6 mm Diameter, 350 Piece</td> <td style="border:1px solid #C6C6C6;padding:6px;">MCM</td> <td style="border:1px solid #C6C6C6;padding:6px;">1</td> <td style="border:1px solid #C6C6C6;padding:6px;"><span><a id="e14-product-link-73ec9" data-at-areainteracted="rte-content" data-at-type="click" data-at-link-type="link" href="https://referral.element14.com/OrderCodeView?fsku=2855029&nsku=79X3948&COM=e14c-noscript&CMP=e14c-noscript&osetc=e14-noscript-tracking-loss" data-at-label="PRODUCT_POPUP_OPEN"class="e14-embedded e14_shopping-cart-far e14-link" onclick="event.preventDefault();e14.func.displayProduct(e14.meta.user.country, this, 'embedded-link', e14.func.getProductLinkJSON('73ec9'));" data-farnell="2855029~1" data-newark="79X3948~1" data-comoverride="" data-cmpoverride="" data-cpc="" data-avnetemea="" data-avnetema="" data-avnetasia="" >Buy Now</a> </span></td> </tr> <tr> <td style="border:1px solid #C6C6C6;padding:6px;">FTDI Interface Analog Development Board LC234X, USB to UART Bridge</td> <td style="border:1px solid #C6C6C6;padding:6px;">FTDI</td> <td style="border:1px solid #C6C6C6;padding:6px;">1</td> <td style="border:1px solid #C6C6C6;padding:6px;"><span><a id="e14-product-link-37f2b" data-at-areainteracted="rte-content" data-at-type="click" data-at-link-type="link" href="https://referral.element14.com/OrderCodeView?fsku=2753006&nsku=16AC9366&COM=e14c-noscript&CMP=e14c-noscript&osetc=e14-noscript-tracking-loss" data-at-label="PRODUCT_POPUP_OPEN"class="e14-embedded e14_shopping-cart-far e14-link" onclick="event.preventDefault();e14.func.displayProduct(e14.meta.user.country, this, 'embedded-link', e14.func.getProductLinkJSON('37f2b'));" data-farnell="2753006~1" data-newark="16AC9366~1" data-comoverride="" data-cmpoverride="" data-cpc="" data-avnetemea="" data-avnetema="" data-avnetasia="" >Buy Now</a> </span></td> </tr> <tr> <td style="border:1px solid #C6C6C6;padding:6px;">MICROCHIP Battery Charger for 1 Cell of Li-Ion, Li-Pol battery, 6V input, 4.2V / 500mA charge, SOT-23-5</td> <td style="border:1px solid #C6C6C6;padding:6px;">Microchip</td> <td style="border:1px solid #C6C6C6;padding:6px;">1</td> <td style="border:1px solid #C6C6C6;padding:6px;"><span><a id="e14-product-link-fba82" data-at-areainteracted="rte-content" data-at-type="click" data-at-link-type="link" href="https://referral.element14.com/OrderCodeView?fsku=1834890&nsku=84R8632&COM=e14c-noscript&CMP=e14c-noscript&osetc=e14-noscript-tracking-loss" data-at-label="PRODUCT_POPUP_OPEN"class="e14-embedded e14_shopping-cart-far e14-link" onclick="event.preventDefault();e14.func.displayProduct(e14.meta.user.country, this, 'embedded-link', e14.func.getProductLinkJSON('fba82'));" data-farnell="1834890~1" data-newark="84R8632~1" data-comoverride="" data-cmpoverride="" data-cpc="" data-avnetemea="" data-avnetema="" data-avnetasia="" >Buy Now</a> </span></td> </tr> <tr> <td style="border:1px solid #C6C6C6;padding:6px;">MICROCHIP Fixed LDO Voltage Regulator, 2.1V to 6V, 210mV Drop, 3.3V/500mA Out, SOT-223-3</td> <td style="border:1px solid #C6C6C6;padding:6px;">Microchip</td> <td style="border:1px solid #C6C6C6;padding:6px;">1</td> <td style="border:1px solid #C6C6C6;padding:6px;"><span><a id="e14-product-link-79f30" data-at-areainteracted="rte-content" data-at-type="click" data-at-link-type="link" href="https://referral.element14.com/OrderCodeView?fsku=2857611&nsku=57AC2481&COM=e14c-noscript&CMP=e14c-noscript&osetc=e14-noscript-tracking-loss" data-at-label="PRODUCT_POPUP_OPEN"class="e14-embedded e14_shopping-cart-far e14-link" onclick="event.preventDefault();e14.func.displayProduct(e14.meta.user.country, this, 'embedded-link', e14.func.getProductLinkJSON('79f30'));" data-farnell="2857611~1" data-newark="57AC2481~1" data-comoverride="" data-cmpoverride="" data-cpc="" data-avnetemea="" data-avnetema="" data-avnetasia="" >Buy Now</a> </span></td> </tr> <tr> <td style="border:1px solid #C6C6C6;padding:6px;">ESP32-S2-WROOM</td> <td style="border:1px solid #C6C6C6;padding:6px;">espressif</td> <td style="border:1px solid #C6C6C6;padding:6px;">1</td> <td style="border:1px solid #C6C6C6;padding:6px;"><span><a id="e14-product-link-addc8" data-at-areainteracted="rte-content" data-at-type="click" data-at-link-type="link" href="https://referral.element14.com/OrderCodeView?fsku=Avnet&nsku=AVNET&COM=e14c-noscript&CMP=e14c-noscript&osetc=e14-noscript-tracking-loss" data-at-label="PRODUCT_POPUP_OPEN"class="e14-embedded e14_shopping-cart-far e14-link" onclick="event.preventDefault();e14.func.displayProduct(e14.meta.user.country, this, 'embedded-link', e14.func.getProductLinkJSON('addc8'));" data-farnell="Avnet~1" data-newark="AVNET~1" data-comoverride="" data-cmpoverride="" data-cpc="" data-avnetemea="" data-avnetema="" data-avnetasia="" >Buy Now</a> </span></td> </tr> <tr> <td style="border:1px solid #C6C6C6;padding:6px;">USB Connector, USB Type C, USB 3.1, Receptacle, 24 Ways, Surface Mount, Right Angle</td> <td style="border:1px solid #C6C6C6;padding:6px;">Molex</td> <td style="border:1px solid #C6C6C6;padding:6px;">1</td> <td style="border:1px solid #C6C6C6;padding:6px;"><span><a id="e14-product-link-6990d" data-at-areainteracted="rte-content" data-at-type="click" data-at-link-type="link" href="https://referral.element14.com/OrderCodeView?fsku=2524076&nsku=02AH5567&COM=e14c-noscript&CMP=e14c-noscript&osetc=e14-noscript-tracking-loss" data-at-label="PRODUCT_POPUP_OPEN"class="e14-embedded e14_shopping-cart-far e14-link" onclick="event.preventDefault();e14.func.displayProduct(e14.meta.user.country, this, 'embedded-link', e14.func.getProductLinkJSON('6990d'));" data-farnell="2524076~1" data-newark="02AH5567~1" data-comoverride="" data-cmpoverride="" data-cpc="" data-avnetemea="" data-avnetema="" data-avnetasia="" >Buy Now</a> </span></td> </tr> <tr> <td style="border:1px solid #C6C6C6;padding:6px;">INA219 SOIC</td> <td style="border:1px solid #C6C6C6;padding:6px;">TI</td> <td style="border:1px solid #C6C6C6;padding:6px;">1</td> <td style="border:1px solid #C6C6C6;padding:6px;"><span><a id="e14-product-link-a3e5d" data-at-areainteracted="rte-content" data-at-type="click" data-at-link-type="link" href="https://referral.element14.com/OrderCodeView?fsku=3118166&nsku=52AH7139&COM=e14c-noscript&CMP=e14c-noscript&osetc=e14-noscript-tracking-loss" data-at-label="PRODUCT_POPUP_OPEN"class="e14-embedded e14_shopping-cart-far e14-link" onclick="event.preventDefault();e14.func.displayProduct(e14.meta.user.country, this, 'embedded-link', e14.func.getProductLinkJSON('a3e5d'));" data-farnell="3118166~1" data-newark="52AH7139~1" data-comoverride="" data-cmpoverride="" data-cpc="" data-avnetemea="" data-avnetema="" data-avnetasia="" >Buy Now</a> </span></td> </tr> <tr> <td style="border:1px solid #C6C6C6;padding:6px;">0,1 Ohm current shunt resistor</td> <td style="border:1px solid #C6C6C6;padding:6px;">panasonic</td> <td style="border:1px solid #C6C6C6;padding:6px;">1</td> <td style="border:1px solid #C6C6C6;padding:6px;"><span><a id="e14-product-link-a6498" data-at-areainteracted="rte-content" data-at-type="click" data-at-link-type="link" href="https://referral.element14.com/OrderCodeView?fsku=1717759&nsku=63W1138&COM=e14c-noscript&CMP=e14c-noscript&osetc=e14-noscript-tracking-loss" data-at-label="PRODUCT_POPUP_OPEN"class="e14-embedded e14_shopping-cart-far e14-link" onclick="event.preventDefault();e14.func.displayProduct(e14.meta.user.country, this, 'embedded-link', e14.func.getProductLinkJSON('a6498'));" data-farnell="1717759~1" data-newark="63W1138~1" data-comoverride="" data-cmpoverride="" data-cpc="" data-avnetemea="" data-avnetema="" data-avnetasia="" >Buy Now</a> </span></td> </tr> </tbody> </table> <p style="margin:0;padding:0px;">&nbsp;</p> <h2><span style="color:#3334ca;">Additional Parts:</span></h2> <p style="margin:0;padding:0px;">&nbsp;</p> <table class="jiveBorder" style="border:1px solid #000000;width:100%;" border="1"> <thead> <tr> <th style="background-color:#6690bc;border:1px solid #000000;color:#ffffff;padding:2px;text-align:left;" valign="middle"><strong>Product Name</strong></th> </tr> </thead> <tbody> <tr> <td style="border:1px solid #000000;padding:2px;"><span style="color:#303030;"><strong>ESP32-S2-WROOM</strong></span></td> </tr> </tbody> </table> <div class="migration-injected-attachments"> <div style="font-weight:bold;margin:15px 0 5px 0;">Attachments:</div> <div></div> <table style="border:0;"> <tbody> <tr> <td colspan="2"><span id="attid_https://www.element14.com/community/api/core/v3/attachments/312691" class="_se_attachment"><a href="https://community.element14.com/cfs-file/__key/communityserver-wikis-components-files/00-00-00-03-81/MiniMultimeter_5F00_Resources.zip">community.element14.com/.../MiniMultimeter_5F00_Resources.zip</a></span></td> </tr> </tbody> </table> </div> <div style="background:#ffffff;border:1px solid #dadada;margin:0;padding:14px 16px 16px 18px;vertical-align:top;"> <div style="display:inline-block;float:left;padding:0px 25px 8px 0px;"><a href="/challengesprojects/element14-presents/" data-e14adj="t"><img alt="element14 presents" src="/e14/assets/legacy/2018/e14PresentsJune818.png" width="180px" /></a></div> <div style="display:inline-block;vertical-align:top;width:70%;"><span style="font-size:18px;font-weight:bold;">DIY Miniature Multimeter</span> <p style="margin:0;"><span><a class="jivecontainerTT-hover-container jive-link-community-small" href="/challengesprojects/element14-presents/" data-e14adj="t">element14 Presents</a></span>&nbsp; <strong>|</strong>&nbsp; <a class="jive-link-wiki-small" href="/challenges-projects/element14-presents/vcp-program/w/documents/3692/vcp-biography-clem" data-e14adj="t">About Clem</a>&nbsp; <strong>|</strong>&nbsp; <a class="jivecontainerTT-hover-container jive-link-community-small" href="/challengesprojects/element14-presents/project-videos/" data-e14adj="t">Project Videos</a></p> </div> </div><div style="clear:both;"></div> <div style="font-size: 90%;">Tags: esp32, oled, molex, measure voltage arduino, make a multimeter, clem, mcm, ina219 arduino, homemade multimeter, battery charger, microchip, native usb esp32s2, esp32 project, esp32 multimeter, diy multimeter, e14presents_mayermakes, esp32-s2-wroom, breadboard, BAK, oled arduino, esp32-s2, rechargeable battery, multimeter, esp32s2, midas, friday_release, mayermakes, ftdi, e14p_CMM, simple esp32s2 i2c on esp32</div> https://community.element14.com/challenges-projects/element14-presents/project-videos/w/documents/5201/diy-miniature-multimeter----episode-483/revision/4Thu, 30 Jun 2022 17:50:12 GMT93d5dcb4-84c2-446f-b2cb-99731719e767:1433d454-10c5-4952-b6a0-97720a87e3d9saradetwilerhttps://community.element14.com/challenges-projects/element14-presents/project-videos/w/documents/5201/diy-miniature-multimeter----episode-483#commentsRevision 4 posted to Documents by saradetwiler on 6/30/2022 5:50:12 PM<br /> <p><span><a href="https://www.youtube.com/watch?v=7Kbc5S5ff98">www.youtube.com/watch</a></span></p> <p style="margin:0;padding:0px;">&nbsp;</p> <p style="background-color:#e9f6fc;border:1px solid #b8d7e5;margin:0;max-width:744px;padding:8px;"><span style="color:#000000;font-family:&#39;Open Sans&#39;, Arial, sans-serif;text-align:justify;">Breadboarding is often the start of great projects but measuring on Breadboards is often not so great. The standard multimeter leads don&#39;t fit into breadboard holes and alligator clips are needed to connect to the circuit. There must be a better way! Clem designs a tiny Multimeter dedicated to be used with a breadboard! Easy to connect, battery powered and it even has a WI-FI so you can view the readings on your phone! </span></p> <p style="margin:0;padding:0px;">&nbsp;</p> <p style="margin:0;"><span style="color:#393939;font-family:&#39;Helvetica Neue&#39;, Helvetica, Arial, sans-serif;font-size:13px;">Get the PCB here: </span><a class="jive-link-external-small" style="color:#ef6421;font-family:&#39;Helvetica Neue&#39;, Helvetica, Arial, sans-serif;font-size:13px;" href="https://aisler.net/p/BKDRSPYV" rel="nofollow ugc noopener noreferrer" target="_blank">https://aisler.net/p/BKDRSPYV</a></p> <h2><span style="color:#3334ca;">Bill of Material:</span></h2> <table class="jiveBorder" style="border:1px solid #C6C6C6;" border="1"> <thead> <tr> <th style="background-color:#f2f2f2;border:1px solid #C6C6C6;color:#505050;padding:6px;text-align:left;">Product Name</th> <th style="background-color:#f2f2f2;border:1px solid #C6C6C6;color:#505050;padding:6px;text-align:left;">Manufacturer</th> <th style="background-color:#f2f2f2;border:1px solid #C6C6C6;color:#505050;padding:6px;text-align:left;">Quantity</th> <th style="background-color:#f2f2f2;border:1px solid #C6C6C6;color:#505050;padding:6px;text-align:left;"><span><a id="e14-product-link-28ac3" data-at-areainteracted="rte-content" data-at-type="click" data-at-link-type="button" href="https://referral.element14.com/OrderCodeView?fsku=2819234,3154939,2855029,2753006,1834890,2857611,Avnet,2524076,3118166,1717759&nsku=98Y9917,21AH3301,79X3948,16AC9366,84R8632,57AC2481,AVNET,02AH5567,52AH7139,63W1138&COM=e14c-noscript&CMP=e14c-noscript&osetc=e14-noscript-tracking-loss" data-at-label="PRODUCT_BUY_KIT" class="e14-embedded e14_shopping-cart-far e14-button" onclick="event.preventDefault();e14.func.displayProduct(e14.meta.user.country, this, 'embedded-link', e14.func.getProductLinkJSON('28ac3'));" data-farnell="2819234~1,3154939~1,2855029~1,2753006~1,1834890~1,2857611~1,Avnet~1,2524076~1,3118166~1,1717759~1" data-newark="98Y9917~1,21AH3301~1,79X3948~1,16AC9366~1,84R8632~1,57AC2481~1,AVNET~1,02AH5567~1,52AH7139~1,63W1138~1" data-comoverride="" data-cmpoverride="" data-cpc="" data-avnetemea="" data-avnetema="" data-avnetasia="" >Buy Kit</a> </span></th> </tr> </thead> <tbody> <tr> <td style="border:1px solid #C6C6C6;padding:6px;">BAK Rechargeable Battery, 3.7 V, Lithium Polymer, 370 mAh, Connector</td> <td style="border:1px solid #C6C6C6;padding:6px;">BAK</td> <td style="border:1px solid #C6C6C6;padding:6px;">1</td> <td style="border:1px solid #C6C6C6;padding:6px;"><span><a id="e14-product-link-3ad3d" data-at-areainteracted="rte-content" data-at-type="click" data-at-link-type="link" href="https://referral.element14.com/OrderCodeView?fsku=2819234&nsku=98Y9917&COM=e14c-noscript&CMP=e14c-noscript&osetc=e14-noscript-tracking-loss" data-at-label="PRODUCT_POPUP_OPEN"class="e14-embedded e14_shopping-cart-far e14-link" onclick="event.preventDefault();e14.func.displayProduct(e14.meta.user.country, this, 'embedded-link', e14.func.getProductLinkJSON('3ad3d'));" data-farnell="2819234~1" data-newark="98Y9917~1" data-comoverride="" data-cmpoverride="" data-cpc="" data-avnetemea="" data-avnetema="" data-avnetasia="" >Buy Now</a> </span></td> </tr> <tr> <td style="border:1px solid #C6C6C6;padding:6px;">MIDAS Graphic OLED, 96 x 16 Pixels, White on Black, 3V, I2C, 33mm x 10mm, -40 &deg;C</td> <td style="border:1px solid #C6C6C6;padding:6px;">Midas</td> <td style="border:1px solid #C6C6C6;padding:6px;">1</td> <td style="border:1px solid #C6C6C6;padding:6px;"><span><a id="e14-product-link-19787" data-at-areainteracted="rte-content" data-at-type="click" data-at-link-type="link" href="https://referral.element14.com/OrderCodeView?fsku=3154939&nsku=21AH3301&COM=e14c-noscript&CMP=e14c-noscript&osetc=e14-noscript-tracking-loss" data-at-label="PRODUCT_POPUP_OPEN"class="e14-embedded e14_shopping-cart-far e14-link" onclick="event.preventDefault();e14.func.displayProduct(e14.meta.user.country, this, 'embedded-link', e14.func.getProductLinkJSON('19787'));" data-farnell="3154939~1" data-newark="21AH3301~1" data-comoverride="" data-cmpoverride="" data-cpc="" data-avnetemea="" data-avnetema="" data-avnetasia="" >Buy Now</a> </span></td> </tr> <tr> <td style="border:1px solid #C6C6C6;padding:6px;">MCM Wire Kit, Jumper, Copper, 0.6 mm Diameter, 350 Piece</td> <td style="border:1px solid #C6C6C6;padding:6px;">MCM</td> <td style="border:1px solid #C6C6C6;padding:6px;">1</td> <td style="border:1px solid #C6C6C6;padding:6px;"><span><a id="e14-product-link-66061" data-at-areainteracted="rte-content" data-at-type="click" data-at-link-type="link" href="https://referral.element14.com/OrderCodeView?fsku=2855029&nsku=79X3948&COM=e14c-noscript&CMP=e14c-noscript&osetc=e14-noscript-tracking-loss" data-at-label="PRODUCT_POPUP_OPEN"class="e14-embedded e14_shopping-cart-far e14-link" onclick="event.preventDefault();e14.func.displayProduct(e14.meta.user.country, this, 'embedded-link', e14.func.getProductLinkJSON('66061'));" data-farnell="2855029~1" data-newark="79X3948~1" data-comoverride="" data-cmpoverride="" data-cpc="" data-avnetemea="" data-avnetema="" data-avnetasia="" >Buy Now</a> </span></td> </tr> <tr> <td style="border:1px solid #C6C6C6;padding:6px;">FTDI Interface Analog Development Board LC234X, USB to UART Bridge</td> <td style="border:1px solid #C6C6C6;padding:6px;">FTDI</td> <td style="border:1px solid #C6C6C6;padding:6px;">1</td> <td style="border:1px solid #C6C6C6;padding:6px;"><span><a id="e14-product-link-9a546" data-at-areainteracted="rte-content" data-at-type="click" data-at-link-type="link" href="https://referral.element14.com/OrderCodeView?fsku=2753006&nsku=16AC9366&COM=e14c-noscript&CMP=e14c-noscript&osetc=e14-noscript-tracking-loss" data-at-label="PRODUCT_POPUP_OPEN"class="e14-embedded e14_shopping-cart-far e14-link" onclick="event.preventDefault();e14.func.displayProduct(e14.meta.user.country, this, 'embedded-link', e14.func.getProductLinkJSON('9a546'));" data-farnell="2753006~1" data-newark="16AC9366~1" data-comoverride="" data-cmpoverride="" data-cpc="" data-avnetemea="" data-avnetema="" data-avnetasia="" >Buy Now</a> </span></td> </tr> <tr> <td style="border:1px solid #C6C6C6;padding:6px;">MICROCHIP Battery Charger for 1 Cell of Li-Ion, Li-Pol battery, 6V input, 4.2V / 500mA charge, SOT-23-5</td> <td style="border:1px solid #C6C6C6;padding:6px;">Microchip</td> <td style="border:1px solid #C6C6C6;padding:6px;">1</td> <td style="border:1px solid #C6C6C6;padding:6px;"><span><a id="e14-product-link-e231c" data-at-areainteracted="rte-content" data-at-type="click" data-at-link-type="link" href="https://referral.element14.com/OrderCodeView?fsku=1834890&nsku=84R8632&COM=e14c-noscript&CMP=e14c-noscript&osetc=e14-noscript-tracking-loss" data-at-label="PRODUCT_POPUP_OPEN"class="e14-embedded e14_shopping-cart-far e14-link" onclick="event.preventDefault();e14.func.displayProduct(e14.meta.user.country, this, 'embedded-link', e14.func.getProductLinkJSON('e231c'));" data-farnell="1834890~1" data-newark="84R8632~1" data-comoverride="" data-cmpoverride="" data-cpc="" data-avnetemea="" data-avnetema="" data-avnetasia="" >Buy Now</a> </span></td> </tr> <tr> <td style="border:1px solid #C6C6C6;padding:6px;">MICROCHIP Fixed LDO Voltage Regulator, 2.1V to 6V, 210mV Drop, 3.3V/500mA Out, SOT-223-3</td> <td style="border:1px solid #C6C6C6;padding:6px;">Microchip</td> <td style="border:1px solid #C6C6C6;padding:6px;">1</td> <td style="border:1px solid #C6C6C6;padding:6px;"><span><a id="e14-product-link-7912d" data-at-areainteracted="rte-content" data-at-type="click" data-at-link-type="link" href="https://referral.element14.com/OrderCodeView?fsku=2857611&nsku=57AC2481&COM=e14c-noscript&CMP=e14c-noscript&osetc=e14-noscript-tracking-loss" data-at-label="PRODUCT_POPUP_OPEN"class="e14-embedded e14_shopping-cart-far e14-link" onclick="event.preventDefault();e14.func.displayProduct(e14.meta.user.country, this, 'embedded-link', e14.func.getProductLinkJSON('7912d'));" data-farnell="2857611~1" data-newark="57AC2481~1" data-comoverride="" data-cmpoverride="" data-cpc="" data-avnetemea="" data-avnetema="" data-avnetasia="" >Buy Now</a> </span></td> </tr> <tr> <td style="border:1px solid #C6C6C6;padding:6px;">ESP32-S2-WROOM</td> <td style="border:1px solid #C6C6C6;padding:6px;">espressif</td> <td style="border:1px solid #C6C6C6;padding:6px;">1</td> <td style="border:1px solid #C6C6C6;padding:6px;"><span><a id="e14-product-link-39a33" data-at-areainteracted="rte-content" data-at-type="click" data-at-link-type="link" href="https://referral.element14.com/OrderCodeView?fsku=Avnet&nsku=AVNET&COM=e14c-noscript&CMP=e14c-noscript&osetc=e14-noscript-tracking-loss" data-at-label="PRODUCT_POPUP_OPEN"class="e14-embedded e14_shopping-cart-far e14-link" onclick="event.preventDefault();e14.func.displayProduct(e14.meta.user.country, this, 'embedded-link', e14.func.getProductLinkJSON('39a33'));" data-farnell="Avnet~1" data-newark="AVNET~1" data-comoverride="" data-cmpoverride="" data-cpc="" data-avnetemea="" data-avnetema="" data-avnetasia="" >Buy Now</a> </span></td> </tr> <tr> <td style="border:1px solid #C6C6C6;padding:6px;">USB Connector, USB Type C, USB 3.1, Receptacle, 24 Ways, Surface Mount, Right Angle</td> <td style="border:1px solid #C6C6C6;padding:6px;">Molex</td> <td style="border:1px solid #C6C6C6;padding:6px;">1</td> <td style="border:1px solid #C6C6C6;padding:6px;"><span><a id="e14-product-link-3ed9c" data-at-areainteracted="rte-content" data-at-type="click" data-at-link-type="link" href="https://referral.element14.com/OrderCodeView?fsku=2524076&nsku=02AH5567&COM=e14c-noscript&CMP=e14c-noscript&osetc=e14-noscript-tracking-loss" data-at-label="PRODUCT_POPUP_OPEN"class="e14-embedded e14_shopping-cart-far e14-link" onclick="event.preventDefault();e14.func.displayProduct(e14.meta.user.country, this, 'embedded-link', e14.func.getProductLinkJSON('3ed9c'));" data-farnell="2524076~1" data-newark="02AH5567~1" data-comoverride="" data-cmpoverride="" data-cpc="" data-avnetemea="" data-avnetema="" data-avnetasia="" >Buy Now</a> </span></td> </tr> <tr> <td style="border:1px solid #C6C6C6;padding:6px;">INA219 SOIC</td> <td style="border:1px solid #C6C6C6;padding:6px;">TI</td> <td style="border:1px solid #C6C6C6;padding:6px;">1</td> <td style="border:1px solid #C6C6C6;padding:6px;"><span><a id="e14-product-link-cb706" data-at-areainteracted="rte-content" data-at-type="click" data-at-link-type="link" href="https://referral.element14.com/OrderCodeView?fsku=3118166&nsku=52AH7139&COM=e14c-noscript&CMP=e14c-noscript&osetc=e14-noscript-tracking-loss" data-at-label="PRODUCT_POPUP_OPEN"class="e14-embedded e14_shopping-cart-far e14-link" onclick="event.preventDefault();e14.func.displayProduct(e14.meta.user.country, this, 'embedded-link', e14.func.getProductLinkJSON('cb706'));" data-farnell="3118166~1" data-newark="52AH7139~1" data-comoverride="" data-cmpoverride="" data-cpc="" data-avnetemea="" data-avnetema="" data-avnetasia="" >Buy Now</a> </span></td> </tr> <tr> <td style="border:1px solid #C6C6C6;padding:6px;">0,1 Ohm current shunt resistor</td> <td style="border:1px solid #C6C6C6;padding:6px;">panasonic</td> <td style="border:1px solid #C6C6C6;padding:6px;">1</td> <td style="border:1px solid #C6C6C6;padding:6px;"><span><a id="e14-product-link-11e98" data-at-areainteracted="rte-content" data-at-type="click" data-at-link-type="link" href="https://referral.element14.com/OrderCodeView?fsku=1717759&nsku=63W1138&COM=e14c-noscript&CMP=e14c-noscript&osetc=e14-noscript-tracking-loss" data-at-label="PRODUCT_POPUP_OPEN"class="e14-embedded e14_shopping-cart-far e14-link" onclick="event.preventDefault();e14.func.displayProduct(e14.meta.user.country, this, 'embedded-link', e14.func.getProductLinkJSON('11e98'));" data-farnell="1717759~1" data-newark="63W1138~1" data-comoverride="" data-cmpoverride="" data-cpc="" data-avnetemea="" data-avnetema="" data-avnetasia="" >Buy Now</a> </span></td> </tr> </tbody> </table> <p style="margin:0;padding:0px;">&nbsp;</p> <h2><span style="color:#3334ca;">Additional Parts:</span></h2> <p style="margin:0;padding:0px;">&nbsp;</p> <table class="jiveBorder" style="border:1px solid #000000;width:100%;" border="1"> <thead> <tr> <th style="background-color:#6690bc;border:1px solid #000000;color:#ffffff;padding:2px;text-align:left;" valign="middle"><strong>Product Name</strong></th> </tr> </thead> <tbody> <tr> <td style="border:1px solid #000000;padding:2px;"><span style="color:#303030;"><strong>ESP32-S2-WROOM</strong></span></td> </tr> </tbody> </table> <div class="migration-injected-attachments"> <div style="font-weight:bold;margin:15px 0 5px 0;">Attachments:</div> <div></div> <table style="border:0;"> <tbody> <tr> <td colspan="2"><span id="attid_https://www.element14.com/community/api/core/v3/attachments/312691" class="_se_attachment"><a href="https://community.element14.com/cfs-file/__key/communityserver-wikis-components-files/00-00-00-03-81/MiniMultimeter_5F00_Resources.zip">community.element14.com/.../MiniMultimeter_5F00_Resources.zip</a></span></td> </tr> </tbody> </table> </div> <div style="background:#ffffff;border:1px solid #dadada;margin:0;padding:14px 16px 16px 18px;vertical-align:top;"> <div style="display:inline-block;float:left;padding:0px 25px 8px 0px;"><a href="/challengesprojects/element14-presents/"><img alt="element14 presents" src="/e14/assets/legacy/2018/e14PresentsJune818.png" width="180px" /></a></div> <div style="display:inline-block;vertical-align:top;width:70%;"><span style="font-size:18px;font-weight:bold;">DIY Miniature Multimeter</span> <p style="margin:0;"><span><a class="jivecontainerTT-hover-container jive-link-community-small" href="/challengesprojects/element14-presents/">element14 Presents</a></span>&nbsp; <strong>|</strong>&nbsp; <a class="jive-link-wiki-small" href="/challenges-projects/element14-presents/vcp-program/w/documents/3692/vcp-biography-clem">About Clem</a>&nbsp; <strong>|</strong>&nbsp; <a class="jivecontainerTT-hover-container jive-link-community-small" href="/challengesprojects/element14-presents/project-videos/">Project Videos</a></p> </div> </div><div style="clear:both;"></div> <div style="font-size: 90%;">Tags: esp32, oled, molex, measure voltage arduino, make a multimeter, clem, mcm, ina219 arduino, homemade multimeter, battery charger, microchip, native usb esp32s2, esp32 project, esp32 multimeter, diy multimeter, e14presents_mayermakes, esp32-s2-wroom, breadboard, BAK, oled arduino, esp32-s2, rechargeable battery, multimeter, esp32s2, midas, friday_release, mayermakes, ftdi, e14p_CMM, simple esp32s2 i2c on esp32</div> https://community.element14.com/challenges-projects/element14-presents/project-videos/w/documents/5201/diy-miniature-multimeter----episode-483/revision/3Wed, 02 Mar 2022 15:18:22 GMT93d5dcb4-84c2-446f-b2cb-99731719e767:1433d454-10c5-4952-b6a0-97720a87e3d9kellyhensenhttps://community.element14.com/challenges-projects/element14-presents/project-videos/w/documents/5201/diy-miniature-multimeter----episode-483#commentsRevision 3 posted to Documents by kellyhensen on 3/2/2022 3:18:22 PM<br /> <p><span><a href="https://www.youtube.com/watch?v=7Kbc5S5ff98">www.youtube.com/watch</a></span></p> <p style="margin:0;padding:0px;">&nbsp;</p> <p style="background-color:#e9f6fc;border:1px solid #b8d7e5;margin:0;max-width:744px;padding:8px;"><span style="color:#000000;font-family:&#39;Open Sans&#39;, Arial, sans-serif;text-align:justify;">Breadboarding is often the start of great projects but measuring on Breadboards is often not so great. The standard multimeter leads don&#39;t fit into breadboard holes and alligator clips are needed to connect to the circuit. There must be a better way! Clem designs a tiny Multimeter dedicated to be used with a breadboard! Easy to connect, battery powered and it even has a WI-FI so you can view the readings on your phone! </span></p> <p style="margin:0;padding:0px;">&nbsp;</p> <p style="margin:0;"><span style="color:#393939;font-family:&#39;Helvetica Neue&#39;, Helvetica, Arial, sans-serif;font-size:13px;">Get the PCB here: </span><a class="jive-link-external-small" style="color:#ef6421;font-family:&#39;Helvetica Neue&#39;, Helvetica, Arial, sans-serif;font-size:13px;" href="https://aisler.net/p/BKDRSPYV" rel="nofollow ugc noopener noreferrer" target="_blank">https://aisler.net/p/BKDRSPYV</a></p> <h2><span style="color:#3334ca;">Bill of Material:</span></h2> <table class="jiveBorder" style="border:1px solid #C6C6C6;" border="1"> <thead> <tr> <th style="background-color:#f2f2f2;border:1px solid #C6C6C6;color:#505050;padding:6px;text-align:left;">Product Name</th> <th style="background-color:#f2f2f2;border:1px solid #C6C6C6;color:#505050;padding:6px;text-align:left;">Manufacturer</th> <th style="background-color:#f2f2f2;border:1px solid #C6C6C6;color:#505050;padding:6px;text-align:left;">Quantity</th> <th style="background-color:#f2f2f2;border:1px solid #C6C6C6;color:#505050;padding:6px;text-align:left;"><span><a id="e14-product-link-862f3" data-at-areainteracted="rte-content" data-at-type="click" data-at-link-type="button" href="https://referral.element14.com/OrderCodeView?fsku=2819234,3154939,2855029,2753006,1834890,2857611,Avnet,2524076,3118166,1717759&nsku=98Y9917,21AH3301,79X3948,16AC9366,84R8632,57AC2481,AVNET,02AH5567,52AH7139,63W1138&COM=e14c-noscript&CMP=e14c-noscript&osetc=e14-noscript-tracking-loss" data-at-label="PRODUCT_BUY_KIT" class="e14-embedded e14_shopping-cart-far e14-button" onclick="event.preventDefault();e14.func.displayProduct(e14.meta.user.country, this, 'embedded-link', e14.func.getProductLinkJSON('862f3'));" data-farnell="2819234~1,3154939~1,2855029~1,2753006~1,1834890~1,2857611~1,Avnet~1,2524076~1,3118166~1,1717759~1" data-newark="98Y9917~1,21AH3301~1,79X3948~1,16AC9366~1,84R8632~1,57AC2481~1,AVNET~1,02AH5567~1,52AH7139~1,63W1138~1" data-comoverride="" data-cmpoverride="" data-cpc="" data-avnetemea="" data-avnetema="" data-avnetasia="" >Buy Kit</a> </span></th> </tr> </thead> <tbody> <tr> <td style="border:1px solid #C6C6C6;padding:6px;">BAK Rechargeable Battery, 3.7 V, Lithium Polymer, 370 mAh, Connector</td> <td style="border:1px solid #C6C6C6;padding:6px;">BAK</td> <td style="border:1px solid #C6C6C6;padding:6px;">1</td> <td style="border:1px solid #C6C6C6;padding:6px;"><span><a id="e14-product-link-39900" data-at-areainteracted="rte-content" data-at-type="click" data-at-link-type="link" href="https://referral.element14.com/OrderCodeView?fsku=2819234&nsku=98Y9917&COM=e14c-noscript&CMP=e14c-noscript&osetc=e14-noscript-tracking-loss" data-at-label="PRODUCT_POPUP_OPEN"class="e14-embedded e14_shopping-cart-far e14-link" onclick="event.preventDefault();e14.func.displayProduct(e14.meta.user.country, this, 'embedded-link', e14.func.getProductLinkJSON('39900'));" data-farnell="2819234~1" data-newark="98Y9917~1" data-comoverride="" data-cmpoverride="" data-cpc="" data-avnetemea="" data-avnetema="" data-avnetasia="" >Buy Now</a> </span></td> </tr> <tr> <td style="border:1px solid #C6C6C6;padding:6px;">MIDAS Graphic OLED, 96 x 16 Pixels, White on Black, 3V, I2C, 33mm x 10mm, -40 &deg;C</td> <td style="border:1px solid #C6C6C6;padding:6px;">Midas</td> <td style="border:1px solid #C6C6C6;padding:6px;">1</td> <td style="border:1px solid #C6C6C6;padding:6px;"><span><a id="e14-product-link-8fd4a" data-at-areainteracted="rte-content" data-at-type="click" data-at-link-type="link" href="https://referral.element14.com/OrderCodeView?fsku=3154939&nsku=21AH3301&COM=e14c-noscript&CMP=e14c-noscript&osetc=e14-noscript-tracking-loss" data-at-label="PRODUCT_POPUP_OPEN"class="e14-embedded e14_shopping-cart-far e14-link" onclick="event.preventDefault();e14.func.displayProduct(e14.meta.user.country, this, 'embedded-link', e14.func.getProductLinkJSON('8fd4a'));" data-farnell="3154939~1" data-newark="21AH3301~1" data-comoverride="" data-cmpoverride="" data-cpc="" data-avnetemea="" data-avnetema="" data-avnetasia="" >Buy Now</a> </span></td> </tr> <tr> <td style="border:1px solid #C6C6C6;padding:6px;">MCM Wire Kit, Jumper, Copper, 0.6 mm Diameter, 350 Piece</td> <td style="border:1px solid #C6C6C6;padding:6px;">MCM</td> <td style="border:1px solid #C6C6C6;padding:6px;">1</td> <td style="border:1px solid #C6C6C6;padding:6px;"><span><a id="e14-product-link-af498" data-at-areainteracted="rte-content" data-at-type="click" data-at-link-type="link" href="https://referral.element14.com/OrderCodeView?fsku=2855029&nsku=79X3948&COM=e14c-noscript&CMP=e14c-noscript&osetc=e14-noscript-tracking-loss" data-at-label="PRODUCT_POPUP_OPEN"class="e14-embedded e14_shopping-cart-far e14-link" onclick="event.preventDefault();e14.func.displayProduct(e14.meta.user.country, this, 'embedded-link', e14.func.getProductLinkJSON('af498'));" data-farnell="2855029~1" data-newark="79X3948~1" data-comoverride="" data-cmpoverride="" data-cpc="" data-avnetemea="" data-avnetema="" data-avnetasia="" >Buy Now</a> </span></td> </tr> <tr> <td style="border:1px solid #C6C6C6;padding:6px;">FTDI Interface Analog Development Board LC234X, USB to UART Bridge</td> <td style="border:1px solid #C6C6C6;padding:6px;">FTDI</td> <td style="border:1px solid #C6C6C6;padding:6px;">1</td> <td style="border:1px solid #C6C6C6;padding:6px;"><span><a id="e14-product-link-6fe5a" data-at-areainteracted="rte-content" data-at-type="click" data-at-link-type="link" href="https://referral.element14.com/OrderCodeView?fsku=2753006&nsku=16AC9366&COM=e14c-noscript&CMP=e14c-noscript&osetc=e14-noscript-tracking-loss" data-at-label="PRODUCT_POPUP_OPEN"class="e14-embedded e14_shopping-cart-far e14-link" onclick="event.preventDefault();e14.func.displayProduct(e14.meta.user.country, this, 'embedded-link', e14.func.getProductLinkJSON('6fe5a'));" data-farnell="2753006~1" data-newark="16AC9366~1" data-comoverride="" data-cmpoverride="" data-cpc="" data-avnetemea="" data-avnetema="" data-avnetasia="" >Buy Now</a> </span></td> </tr> <tr> <td style="border:1px solid #C6C6C6;padding:6px;">MICROCHIP Battery Charger for 1 Cell of Li-Ion, Li-Pol battery, 6V input, 4.2V / 500mA charge, SOT-23-5</td> <td style="border:1px solid #C6C6C6;padding:6px;">Microchip</td> <td style="border:1px solid #C6C6C6;padding:6px;">1</td> <td style="border:1px solid #C6C6C6;padding:6px;"><span><a id="e14-product-link-d785a" data-at-areainteracted="rte-content" data-at-type="click" data-at-link-type="link" href="https://referral.element14.com/OrderCodeView?fsku=1834890&nsku=84R8632&COM=e14c-noscript&CMP=e14c-noscript&osetc=e14-noscript-tracking-loss" data-at-label="PRODUCT_POPUP_OPEN"class="e14-embedded e14_shopping-cart-far e14-link" onclick="event.preventDefault();e14.func.displayProduct(e14.meta.user.country, this, 'embedded-link', e14.func.getProductLinkJSON('d785a'));" data-farnell="1834890~1" data-newark="84R8632~1" data-comoverride="" data-cmpoverride="" data-cpc="" data-avnetemea="" data-avnetema="" data-avnetasia="" >Buy Now</a> </span></td> </tr> <tr> <td style="border:1px solid #C6C6C6;padding:6px;">MICROCHIP Fixed LDO Voltage Regulator, 2.1V to 6V, 210mV Drop, 3.3V/500mA Out, SOT-223-3</td> <td style="border:1px solid #C6C6C6;padding:6px;">Microchip</td> <td style="border:1px solid #C6C6C6;padding:6px;">1</td> <td style="border:1px solid #C6C6C6;padding:6px;"><span><a id="e14-product-link-4d129" data-at-areainteracted="rte-content" data-at-type="click" data-at-link-type="link" href="https://referral.element14.com/OrderCodeView?fsku=2857611&nsku=57AC2481&COM=e14c-noscript&CMP=e14c-noscript&osetc=e14-noscript-tracking-loss" data-at-label="PRODUCT_POPUP_OPEN"class="e14-embedded e14_shopping-cart-far e14-link" onclick="event.preventDefault();e14.func.displayProduct(e14.meta.user.country, this, 'embedded-link', e14.func.getProductLinkJSON('4d129'));" data-farnell="2857611~1" data-newark="57AC2481~1" data-comoverride="" data-cmpoverride="" data-cpc="" data-avnetemea="" data-avnetema="" data-avnetasia="" >Buy Now</a> </span></td> </tr> <tr> <td style="border:1px solid #C6C6C6;padding:6px;">ESP32-S2-WROOM</td> <td style="border:1px solid #C6C6C6;padding:6px;">espressif</td> <td style="border:1px solid #C6C6C6;padding:6px;">1</td> <td style="border:1px solid #C6C6C6;padding:6px;"><span><a id="e14-product-link-8d9c3" data-at-areainteracted="rte-content" data-at-type="click" data-at-link-type="link" href="https://referral.element14.com/OrderCodeView?fsku=Avnet&nsku=AVNET&COM=e14c-noscript&CMP=e14c-noscript&osetc=e14-noscript-tracking-loss" data-at-label="PRODUCT_POPUP_OPEN"class="e14-embedded e14_shopping-cart-far e14-link" onclick="event.preventDefault();e14.func.displayProduct(e14.meta.user.country, this, 'embedded-link', e14.func.getProductLinkJSON('8d9c3'));" data-farnell="Avnet~1" data-newark="AVNET~1" data-comoverride="" data-cmpoverride="" data-cpc="" data-avnetemea="" data-avnetema="" data-avnetasia="" >Buy Now</a> </span></td> </tr> <tr> <td style="border:1px solid #C6C6C6;padding:6px;">USB Connector, USB Type C, USB 3.1, Receptacle, 24 Ways, Surface Mount, Right Angle</td> <td style="border:1px solid #C6C6C6;padding:6px;">Molex</td> <td style="border:1px solid #C6C6C6;padding:6px;">1</td> <td style="border:1px solid #C6C6C6;padding:6px;"><span><a id="e14-product-link-2a24b" data-at-areainteracted="rte-content" data-at-type="click" data-at-link-type="link" href="https://referral.element14.com/OrderCodeView?fsku=2524076&nsku=02AH5567&COM=e14c-noscript&CMP=e14c-noscript&osetc=e14-noscript-tracking-loss" data-at-label="PRODUCT_POPUP_OPEN"class="e14-embedded e14_shopping-cart-far e14-link" onclick="event.preventDefault();e14.func.displayProduct(e14.meta.user.country, this, 'embedded-link', e14.func.getProductLinkJSON('2a24b'));" data-farnell="2524076~1" data-newark="02AH5567~1" data-comoverride="" data-cmpoverride="" data-cpc="" data-avnetemea="" data-avnetema="" data-avnetasia="" >Buy Now</a> </span></td> </tr> <tr> <td style="border:1px solid #C6C6C6;padding:6px;">INA219 SOIC</td> <td style="border:1px solid #C6C6C6;padding:6px;">TI</td> <td style="border:1px solid #C6C6C6;padding:6px;">1</td> <td style="border:1px solid #C6C6C6;padding:6px;"><span><a id="e14-product-link-fa7b0" data-at-areainteracted="rte-content" data-at-type="click" data-at-link-type="link" href="https://referral.element14.com/OrderCodeView?fsku=3118166&nsku=52AH7139&COM=e14c-noscript&CMP=e14c-noscript&osetc=e14-noscript-tracking-loss" data-at-label="PRODUCT_POPUP_OPEN"class="e14-embedded e14_shopping-cart-far e14-link" onclick="event.preventDefault();e14.func.displayProduct(e14.meta.user.country, this, 'embedded-link', e14.func.getProductLinkJSON('fa7b0'));" data-farnell="3118166~1" data-newark="52AH7139~1" data-comoverride="" data-cmpoverride="" data-cpc="" data-avnetemea="" data-avnetema="" data-avnetasia="" >Buy Now</a> </span></td> </tr> <tr> <td style="border:1px solid #C6C6C6;padding:6px;">0,1 Ohm current shunt resistor</td> <td style="border:1px solid #C6C6C6;padding:6px;">panasonic</td> <td style="border:1px solid #C6C6C6;padding:6px;">1</td> <td style="border:1px solid #C6C6C6;padding:6px;"><span><a id="e14-product-link-05bd0" data-at-areainteracted="rte-content" data-at-type="click" data-at-link-type="link" href="https://referral.element14.com/OrderCodeView?fsku=1717759&nsku=63W1138&COM=e14c-noscript&CMP=e14c-noscript&osetc=e14-noscript-tracking-loss" data-at-label="PRODUCT_POPUP_OPEN"class="e14-embedded e14_shopping-cart-far e14-link" onclick="event.preventDefault();e14.func.displayProduct(e14.meta.user.country, this, 'embedded-link', e14.func.getProductLinkJSON('05bd0'));" data-farnell="1717759~1" data-newark="63W1138~1" data-comoverride="" data-cmpoverride="" data-cpc="" data-avnetemea="" data-avnetema="" data-avnetasia="" >Buy Now</a> </span></td> </tr> </tbody> </table> <p style="margin:0;padding:0px;">&nbsp;</p> <h2><span style="color:#3334ca;">Additional Parts:</span></h2> <p style="margin:0;padding:0px;">&nbsp;</p> <table class="jiveBorder" style="border:1px solid #000000;width:100%;" border="1"> <thead> <tr> <th style="background-color:#6690bc;border:1px solid #000000;color:#ffffff;padding:2px;text-align:left;" valign="middle"><strong>Product Name</strong></th> </tr> </thead> <tbody> <tr> <td style="border:1px solid #000000;padding:2px;"><span style="color:#303030;"><strong>ESP32-S2-WROOM</strong></span></td> </tr> </tbody> </table> <div class="migration-injected-attachments"> <div style="font-weight:bold;margin:15px 0 5px 0;">Attachments:</div> <div></div> <table style="border:0;"> <tbody> <tr> <td colspan="2"><span id="attid_https://www.element14.com/community/api/core/v3/attachments/312691" class="_se_attachment"><a href="https://community.element14.com/cfs-file/__key/communityserver-wikis-components-files/00-00-00-03-81/MiniMultimeter_5F00_Resources.zip">community.element14.com/.../MiniMultimeter_5F00_Resources.zip</a></span></td> </tr> </tbody> </table> </div> <div style="background:#ffffff;border:1px solid #dadada;margin:0;padding:14px 16px 16px 18px;vertical-align:top;"> <div style="display:inline-block;float:left;padding:0px 25px 8px 0px;"><a href="/challengesprojects/element14-presents/"><img alt="element14 presents" src="/e14/assets/legacy/2018/e14PresentsJune818.png" width="180px" /></a></div> <div style="display:inline-block;vertical-align:top;width:70%;"><span style="font-size:18px;font-weight:bold;">DIY Miniature Multimeter</span> <p style="margin:0;"><span><a class="jivecontainerTT-hover-container jive-link-community-small" href="/challengesprojects/element14-presents/">element14 Presents</a></span>&nbsp; <strong>|</strong>&nbsp; <a class="jive-link-wiki-small" href="/challenges-projects/element14-presents/vcp-program/w/documents/3692/vcp-biography-clem">About Clem</a>&nbsp; <strong>|</strong>&nbsp; <a class="jivecontainerTT-hover-container jive-link-community-small" href="/challengesprojects/element14-presents/project-videos/">Project Videos</a></p> </div> </div><div style="clear:both;"></div> <div style="font-size: 90%;">Tags: esp32, oled, molex, measure voltage arduino, make a multimeter, clem, mcm, ina219 arduino, homemade multimeter, battery charger, microchip, native usb esp32s2, esp32 project, esp32 multimeter, diy multimeter, e14presents_mayermakes, esp32-s2-wroom, breadboard, BAK, oled arduino, esp32-s2, rechargeable battery, multimeter, esp32s2, midas, friday_release, mayermakes, ftdi, simple esp32s2 i2c on esp32</div> https://community.element14.com/challenges-projects/element14-presents/project-videos/w/documents/5201/diy-miniature-multimeter----episode-483/revision/2Mon, 17 Jan 2022 09:47:33 GMT93d5dcb4-84c2-446f-b2cb-99731719e767:1433d454-10c5-4952-b6a0-97720a87e3d9Matthttps://community.element14.com/challenges-projects/element14-presents/project-videos/w/documents/5201/diy-miniature-multimeter----episode-483#commentsRevision 2 posted to Documents by Matt on 1/17/2022 9:47:33 AM<br /> <div style="background:#ffffff;padding:14px 16px 16px 18px;margin:0;vertical-align:top;border:1px solid #dadada;"><div style="float:left;display:inline-block;padding:0px 25px 8px 0px;"><a href="/challengesprojects/element14-presents/"><img alt="element14 presents" src="/e14/assets/legacy/2018/e14PresentsJune818.png" width="180px" /></a></div><div style="display:inline-block;vertical-align:top;width:70%;"><span style="font-size:18px;font-weight:bold;">DIY Miniature Multimeter</span><p style="margin:0;"><span><a class="jivecontainerTT-hover-container jive-link-community-small" href="/challengesprojects/element14-presents/">element14 Presents</a></span>&nbsp; <strong>|</strong>&nbsp; <a class="jive-link-wiki-small" href="/challenges-projects/element14-presents/vcp-program/w/documents/3692/vcp-biography-clem">MAYER MAKES VCP Profile</a>&nbsp; <strong>|</strong>&nbsp; <a class="jivecontainerTT-hover-container jive-link-community-small" href="/challengesprojects/element14-presents/project-videos/">Project Videos</a></p></div></div><p style="margin:0;padding:0px;">&nbsp;</p><p style="margin:0;"></p><span><a href="https://www.youtube.com/watch?v=7Kbc5S5ff98">www.youtube.com/watch</a></span><p style="margin:0;"></p><p style="margin:0;padding:0px;">&nbsp;</p><p style="margin:0;border:1px solid #b8d7e5;background-color:#e9f6fc;padding:8px;max-width:744px;"><span style="color:#000000;font-family:&#39;Open Sans&#39;, Arial, sans-serif;text-align:justify;">Breadboarding is often the start of great projects but measuring on Breadboards is often not so great. The standard multimeter leads don&#39;t fit into breadboard holes and alligator clips are needed to connect to the circuit. There must be a better way! Clem designs a tiny Multimeter dedicated to be used with a breadboard! Easy to connect, battery powered and it even has a WI-FI so you can view the readings on your phone! </span></p><p style="margin:0;padding:0px;">&nbsp;</p><p style="margin:0;"><span style="color:#393939;font-family:&#39;Helvetica Neue&#39;, Helvetica, Arial, sans-serif;font-size:13px;">Get the PCB here: </span><a class="jive-link-external-small" href="https://aisler.net/p/BKDRSPYV" rel="nofollow ugc noopener" style="color:#ef6421;font-family:&#39;Helvetica Neue&#39;, Helvetica, Arial, sans-serif;font-size:13px;" target="_blank">https://aisler.net/p/BKDRSPYV</a></p><p style="margin:0;padding:0px;">&nbsp;</p><p style="margin:0;padding:0px;">&nbsp;</p><h2><span style="color:#3334ca;">Bill of Material:</span></h2><p style="margin:0;padding:0px;">&nbsp;</p><p style="margin:0;padding:0px;">&nbsp;</p><table border="1" class="jiveBorder mce-item-table" style="border:1px solid #C6C6C6;"><thead><tr><th style="border:1px solid black;border:1px solid #C6C6C6;padding:6px;color:#505050;background-color:#f2f2f2;text-align:left;">Product Name</th><th style="border:1px solid black;border:1px solid #C6C6C6;padding:6px;color:#505050;background-color:#f2f2f2;text-align:left;">Manufacturer</th><th style="border:1px solid black;border:1px solid #C6C6C6;padding:6px;color:#505050;background-color:#f2f2f2;text-align:left;">Quantity</th><th style="border:1px solid black;border:1px solid #C6C6C6;padding:6px;color:#505050;background-color:#f2f2f2;text-align:left;"><span><a id="e14-product-link-bdee1" data-at-areainteracted="rte-content" data-at-type="click" data-at-link-type="button" href="https://referral.element14.com/OrderCodeView?fsku=2819234,3154939,2855029,2753006,1834890,2857611,Avnet,2524076,3118166,1717759&nsku=98Y9917,21AH3301,79X3948,16AC9366,84R8632,57AC2481,AVNET,02AH5567,52AH7139,63W1138&COM=e14c-noscript&CMP=e14c-noscript&osetc=e14-noscript-tracking-loss" data-at-label="PRODUCT_BUY_KIT" class="e14-embedded e14_shopping-cart-far e14-button" onclick="event.preventDefault();e14.func.displayProduct(e14.meta.user.country, this, 'embedded-link', e14.func.getProductLinkJSON('bdee1'));" data-farnell="2819234~1,3154939~1,2855029~1,2753006~1,1834890~1,2857611~1,Avnet~1,2524076~1,3118166~1,1717759~1" data-newark="98Y9917~1,21AH3301~1,79X3948~1,16AC9366~1,84R8632~1,57AC2481~1,AVNET~1,02AH5567~1,52AH7139~1,63W1138~1" data-comoverride="" data-cmpoverride="" data-cpc="" data-avnetemea="" data-avnetema="" data-avnetasia="" >Buy Kit</a> </span></th></tr></thead><tbody><tr><td style="border:1px solid black;border:1px solid #C6C6C6;padding:6px;">BAK Rechargeable Battery, 3.7 V, Lithium Polymer, 370 mAh, Connector</td><td style="border:1px solid black;border:1px solid #C6C6C6;padding:6px;">BAK</td><td style="border:1px solid black;border:1px solid #C6C6C6;padding:6px;">1</td><td style="border:1px solid black;border:1px solid #C6C6C6;padding:6px;"><span><a id="e14-product-link-022b0" data-at-areainteracted="rte-content" data-at-type="click" data-at-link-type="link" href="https://referral.element14.com/OrderCodeView?fsku=2819234&nsku=98Y9917&COM=e14c-noscript&CMP=e14c-noscript&osetc=e14-noscript-tracking-loss" data-at-label="PRODUCT_POPUP_OPEN"class="e14-embedded e14_shopping-cart-far e14-link" onclick="event.preventDefault();e14.func.displayProduct(e14.meta.user.country, this, 'embedded-link', e14.func.getProductLinkJSON('022b0'));" data-farnell="2819234~1" data-newark="98Y9917~1" data-comoverride="" data-cmpoverride="" data-cpc="" data-avnetemea="" data-avnetema="" data-avnetasia="" >Buy Now</a> </span></td></tr><tr><td style="border:1px solid black;border:1px solid #C6C6C6;padding:6px;">MIDAS Graphic OLED, 96 x 16 Pixels, White on Black, 3V, I2C, 33mm x 10mm, -40 °C</td><td style="border:1px solid black;border:1px solid #C6C6C6;padding:6px;">Midas</td><td style="border:1px solid black;border:1px solid #C6C6C6;padding:6px;">1</td><td style="border:1px solid black;border:1px solid #C6C6C6;padding:6px;"><span><a id="e14-product-link-6d9e9" data-at-areainteracted="rte-content" data-at-type="click" data-at-link-type="link" href="https://referral.element14.com/OrderCodeView?fsku=3154939&nsku=21AH3301&COM=e14c-noscript&CMP=e14c-noscript&osetc=e14-noscript-tracking-loss" data-at-label="PRODUCT_POPUP_OPEN"class="e14-embedded e14_shopping-cart-far e14-link" onclick="event.preventDefault();e14.func.displayProduct(e14.meta.user.country, this, 'embedded-link', e14.func.getProductLinkJSON('6d9e9'));" data-farnell="3154939~1" data-newark="21AH3301~1" data-comoverride="" data-cmpoverride="" data-cpc="" data-avnetemea="" data-avnetema="" data-avnetasia="" >Buy Now</a> </span></td></tr><tr><td style="border:1px solid black;border:1px solid #C6C6C6;padding:6px;">MCM Wire Kit, Jumper, Copper, 0.6 mm Diameter, 350 Piece</td><td style="border:1px solid black;border:1px solid #C6C6C6;padding:6px;">MCM</td><td style="border:1px solid black;border:1px solid #C6C6C6;padding:6px;">1</td><td style="border:1px solid black;border:1px solid #C6C6C6;padding:6px;"><span><a id="e14-product-link-99be2" data-at-areainteracted="rte-content" data-at-type="click" data-at-link-type="link" href="https://referral.element14.com/OrderCodeView?fsku=2855029&nsku=79X3948&COM=e14c-noscript&CMP=e14c-noscript&osetc=e14-noscript-tracking-loss" data-at-label="PRODUCT_POPUP_OPEN"class="e14-embedded e14_shopping-cart-far e14-link" onclick="event.preventDefault();e14.func.displayProduct(e14.meta.user.country, this, 'embedded-link', e14.func.getProductLinkJSON('99be2'));" data-farnell="2855029~1" data-newark="79X3948~1" data-comoverride="" data-cmpoverride="" data-cpc="" data-avnetemea="" data-avnetema="" data-avnetasia="" >Buy Now</a> </span></td></tr><tr><td style="border:1px solid black;border:1px solid #C6C6C6;padding:6px;">FTDI Interface Analog Development Board LC234X, USB to UART Bridge</td><td style="border:1px solid black;border:1px solid #C6C6C6;padding:6px;">FTDI</td><td style="border:1px solid black;border:1px solid #C6C6C6;padding:6px;">1</td><td style="border:1px solid black;border:1px solid #C6C6C6;padding:6px;"><span><a id="e14-product-link-4aed6" data-at-areainteracted="rte-content" data-at-type="click" data-at-link-type="link" href="https://referral.element14.com/OrderCodeView?fsku=2753006&nsku=16AC9366&COM=e14c-noscript&CMP=e14c-noscript&osetc=e14-noscript-tracking-loss" data-at-label="PRODUCT_POPUP_OPEN"class="e14-embedded e14_shopping-cart-far e14-link" onclick="event.preventDefault();e14.func.displayProduct(e14.meta.user.country, this, 'embedded-link', e14.func.getProductLinkJSON('4aed6'));" data-farnell="2753006~1" data-newark="16AC9366~1" data-comoverride="" data-cmpoverride="" data-cpc="" data-avnetemea="" data-avnetema="" data-avnetasia="" >Buy Now</a> </span></td></tr><tr><td style="border:1px solid black;border:1px solid #C6C6C6;padding:6px;">MICROCHIP Battery Charger for 1 Cell of Li-Ion, Li-Pol battery, 6V input, 4.2V / 500mA charge, SOT-23-5</td><td style="border:1px solid black;border:1px solid #C6C6C6;padding:6px;">Microchip</td><td style="border:1px solid black;border:1px solid #C6C6C6;padding:6px;">1</td><td style="border:1px solid black;border:1px solid #C6C6C6;padding:6px;"><span><a id="e14-product-link-416ed" data-at-areainteracted="rte-content" data-at-type="click" data-at-link-type="link" href="https://referral.element14.com/OrderCodeView?fsku=1834890&nsku=84R8632&COM=e14c-noscript&CMP=e14c-noscript&osetc=e14-noscript-tracking-loss" data-at-label="PRODUCT_POPUP_OPEN"class="e14-embedded e14_shopping-cart-far e14-link" onclick="event.preventDefault();e14.func.displayProduct(e14.meta.user.country, this, 'embedded-link', e14.func.getProductLinkJSON('416ed'));" data-farnell="1834890~1" data-newark="84R8632~1" data-comoverride="" data-cmpoverride="" data-cpc="" data-avnetemea="" data-avnetema="" data-avnetasia="" >Buy Now</a> </span></td></tr><tr><td style="border:1px solid black;border:1px solid #C6C6C6;padding:6px;">MICROCHIP Fixed LDO Voltage Regulator, 2.1V to 6V, 210mV Drop, 3.3V/500mA Out, SOT-223-3</td><td style="border:1px solid black;border:1px solid #C6C6C6;padding:6px;">Microchip</td><td style="border:1px solid black;border:1px solid #C6C6C6;padding:6px;">1</td><td style="border:1px solid black;border:1px solid #C6C6C6;padding:6px;"><span><a id="e14-product-link-3d97f" data-at-areainteracted="rte-content" data-at-type="click" data-at-link-type="link" href="https://referral.element14.com/OrderCodeView?fsku=2857611&nsku=57AC2481&COM=e14c-noscript&CMP=e14c-noscript&osetc=e14-noscript-tracking-loss" data-at-label="PRODUCT_POPUP_OPEN"class="e14-embedded e14_shopping-cart-far e14-link" onclick="event.preventDefault();e14.func.displayProduct(e14.meta.user.country, this, 'embedded-link', e14.func.getProductLinkJSON('3d97f'));" data-farnell="2857611~1" data-newark="57AC2481~1" data-comoverride="" data-cmpoverride="" data-cpc="" data-avnetemea="" data-avnetema="" data-avnetasia="" >Buy Now</a> </span></td></tr><tr><td style="border:1px solid black;border:1px solid #C6C6C6;padding:6px;">ESP32-S2-WROOM</td><td style="border:1px solid black;border:1px solid #C6C6C6;padding:6px;">espressif</td><td style="border:1px solid black;border:1px solid #C6C6C6;padding:6px;">1</td><td style="border:1px solid black;border:1px solid #C6C6C6;padding:6px;"><span><a id="e14-product-link-3d923" data-at-areainteracted="rte-content" data-at-type="click" data-at-link-type="link" href="https://referral.element14.com/OrderCodeView?fsku=Avnet&nsku=AVNET&COM=e14c-noscript&CMP=e14c-noscript&osetc=e14-noscript-tracking-loss" data-at-label="PRODUCT_POPUP_OPEN"class="e14-embedded e14_shopping-cart-far e14-link" onclick="event.preventDefault();e14.func.displayProduct(e14.meta.user.country, this, 'embedded-link', e14.func.getProductLinkJSON('3d923'));" data-farnell="Avnet~1" data-newark="AVNET~1" data-comoverride="" data-cmpoverride="" data-cpc="" data-avnetemea="" data-avnetema="" data-avnetasia="" >Buy Now</a> </span></td></tr><tr><td style="border:1px solid black;border:1px solid #C6C6C6;padding:6px;">USB Connector, USB Type C, USB 3.1, Receptacle, 24 Ways, Surface Mount, Right Angle</td><td style="border:1px solid black;border:1px solid #C6C6C6;padding:6px;">Molex</td><td style="border:1px solid black;border:1px solid #C6C6C6;padding:6px;">1</td><td style="border:1px solid black;border:1px solid #C6C6C6;padding:6px;"><span><a id="e14-product-link-dd0d4" data-at-areainteracted="rte-content" data-at-type="click" data-at-link-type="link" href="https://referral.element14.com/OrderCodeView?fsku=2524076&nsku=02AH5567&COM=e14c-noscript&CMP=e14c-noscript&osetc=e14-noscript-tracking-loss" data-at-label="PRODUCT_POPUP_OPEN"class="e14-embedded e14_shopping-cart-far e14-link" onclick="event.preventDefault();e14.func.displayProduct(e14.meta.user.country, this, 'embedded-link', e14.func.getProductLinkJSON('dd0d4'));" data-farnell="2524076~1" data-newark="02AH5567~1" data-comoverride="" data-cmpoverride="" data-cpc="" data-avnetemea="" data-avnetema="" data-avnetasia="" >Buy Now</a> </span></td></tr><tr><td style="border:1px solid black;border:1px solid #C6C6C6;padding:6px;">INA219 SOIC</td><td style="border:1px solid black;border:1px solid #C6C6C6;padding:6px;">TI</td><td style="border:1px solid black;border:1px solid #C6C6C6;padding:6px;">1</td><td style="border:1px solid black;border:1px solid #C6C6C6;padding:6px;"><span><a id="e14-product-link-922e9" data-at-areainteracted="rte-content" data-at-type="click" data-at-link-type="link" href="https://referral.element14.com/OrderCodeView?fsku=3118166&nsku=52AH7139&COM=e14c-noscript&CMP=e14c-noscript&osetc=e14-noscript-tracking-loss" data-at-label="PRODUCT_POPUP_OPEN"class="e14-embedded e14_shopping-cart-far e14-link" onclick="event.preventDefault();e14.func.displayProduct(e14.meta.user.country, this, 'embedded-link', e14.func.getProductLinkJSON('922e9'));" data-farnell="3118166~1" data-newark="52AH7139~1" data-comoverride="" data-cmpoverride="" data-cpc="" data-avnetemea="" data-avnetema="" data-avnetasia="" >Buy Now</a> </span></td></tr><tr><td style="border:1px solid black;border:1px solid #C6C6C6;padding:6px;">0,1 Ohm current shunt resistor</td><td style="border:1px solid black;border:1px solid #C6C6C6;padding:6px;">panasonic</td><td style="border:1px solid black;border:1px solid #C6C6C6;padding:6px;">1</td><td style="border:1px solid black;border:1px solid #C6C6C6;padding:6px;"><span><a id="e14-product-link-95a83" data-at-areainteracted="rte-content" data-at-type="click" data-at-link-type="link" href="https://referral.element14.com/OrderCodeView?fsku=1717759&nsku=63W1138&COM=e14c-noscript&CMP=e14c-noscript&osetc=e14-noscript-tracking-loss" data-at-label="PRODUCT_POPUP_OPEN"class="e14-embedded e14_shopping-cart-far e14-link" onclick="event.preventDefault();e14.func.displayProduct(e14.meta.user.country, this, 'embedded-link', e14.func.getProductLinkJSON('95a83'));" data-farnell="1717759~1" data-newark="63W1138~1" data-comoverride="" data-cmpoverride="" data-cpc="" data-avnetemea="" data-avnetema="" data-avnetasia="" >Buy Now</a> </span></td></tr></tbody></table><p style="margin:0;padding:0px;">&nbsp;</p><h2><span style="color:#3334ca;">Additional Parts:</span></h2><p style="margin:0;padding:0px;">&nbsp;</p><table border="1" class="jiveBorder" style="border:1px solid #000000;width:100%;"><thead><tr><th style="border:1px solid black;border:1px solid #000000;padding:2px;color:#ffffff;background-color:#6690bc;text-align:left;" valign="middle"><strong>Product Name</strong></th></tr></thead><tbody><tr><td style="border:1px solid black;border:1px solid #000000;padding:2px;"><span style="color:#303030;"><strong>ESP32-S2-WROOM</strong></span></td></tr></tbody></table> <div class="migration-injected-attachments"><div style="font-weight:bold;margin:15px 0 5px 0;">Attachments:</div><div></div><table style="border:0;"><tbody><tr><td colspan="2"><span class="_se_attachment" id="attid_https://www.element14.com/community/api/core/v3/attachments/312691"><a href="https://community.element14.com/cfs-file/__key/communityserver-wikis-components-files/00-00-00-03-81/MiniMultimeter_5F00_Resources.zip">community.element14.com/.../MiniMultimeter_5F00_Resources.zip</a></span></td></tr></tbody></table></div><div style="clear:both;"></div> <div style="font-size: 90%;">Tags: measure voltage arduino, make a multimeter, ina219 arduino, homemade multimeter, native usb esp32s2, esp32 project, esp32 multimeter, diy multimeter, e14presents_mayermakes, esp32-s2-wroom, breadboard, oled arduino, esp32-s2, esp32s2, friday_release, mayermakes, simple esp32s2 i2c on esp32</div> https://community.element14.com/challenges-projects/element14-presents/project-videos/w/documents/5201/diy-miniature-multimeter----episode-483/revision/1Fri, 19 Feb 2021 14:32:28 GMT93d5dcb4-84c2-446f-b2cb-99731719e767:1433d454-10c5-4952-b6a0-97720a87e3d9tariq.ahmadhttps://community.element14.com/challenges-projects/element14-presents/project-videos/w/documents/5201/diy-miniature-multimeter----episode-483#commentsRevision 1 posted to Documents by tariq.ahmad on 2/19/2021 2:32:28 PM<br /> <div style="background:#ffffff;padding:14px 16px 16px 18px;margin:0;vertical-align:top;border:1px solid #dadada;"><div style="float:left;display:inline-block;padding:0px 25px 8px 0px;"><a href="/challengesprojects/element14-presents/"><img alt="element14 presents" src="/e14/assets/legacy/2018/e14PresentsJune818.png" width="180px" /></a></div><div style="display:inline-block;vertical-align:top;width:70%;"><span style="font-size:18px;font-weight:bold;">DIY Miniature Multimeter</span><p style="margin:0;"><span><a class="jivecontainerTT-hover-container jive-link-community-small" href="/challengesprojects/element14-presents/">element14 Presents</a></span>&nbsp; <strong>|</strong>&nbsp; <a class="jive-link-wiki-small" href="/challenges-projects/element14-presents/vcp-program/w/documents/3692/vcp-biography-clem">MAYER MAKES VCP Profile</a>&nbsp; <strong>|</strong>&nbsp; <a class="jivecontainerTT-hover-container jive-link-community-small" href="/challengesprojects/element14-presents/project-videos/">Project Videos</a></p></div></div><p style="margin:0;padding:0px;">&nbsp;</p><p style="margin:0;"></p><span><a href="https://www.youtube.com/watch?v=7Kbc5S5ff98">www.youtube.com/watch</a></span><p style="margin:0;"></p><p style="margin:0;padding:0px;">&nbsp;</p><p style="margin:0;border:1px solid #b8d7e5;background-color:#e9f6fc;padding:8px;max-width:744px;"><span style="color:#000000;font-family:&#39;Open Sans&#39;, Arial, sans-serif;text-align:justify;">Breadboarding is often the start of great projects but measuring on Breadboards is often not so great. The standard multimeter leads don&#39;t fit into breadboard holes and alligator clips are needed to connect to the circuit. There must be a better way! Clem designs a tiny Multimeter dedicated to be used with a breadboard! Easy to connect, battery powered and it even has a WI-FI so you can view the readings on your phone! </span></p><p style="margin:0;padding:0px;">&nbsp;</p><p style="margin:0;"><span style="color:#393939;font-family:&#39;Helvetica Neue&#39;, Helvetica, Arial, sans-serif;font-size:13px;">Get the PCB here: </span><a class="jive-link-external-small" href="https://aisler.net/p/BKDRSPYV" rel="nofollow ugc noopener" style="color:#ef6421;font-family:&#39;Helvetica Neue&#39;, Helvetica, Arial, sans-serif;font-size:13px;" target="_blank">https://aisler.net/p/BKDRSPYV</a></p><p style="margin:0;padding:0px;">&nbsp;</p><p style="margin:0;padding:0px;">&nbsp;</p><h2><span style="color:#3334ca;">Bill of Material:</span></h2><p style="margin:0;padding:0px;">&nbsp;</p><p style="margin:0;padding:0px;">&nbsp;</p><table border="1" class="jiveBorder mce-item-table" style="border:1px solid #C6C6C6;"><thead><tr><th style="border:1px solid black;border:1px solid #C6C6C6;padding:6px;color:#505050;background-color:#f2f2f2;text-align:left;">Product Name</th><th style="border:1px solid black;border:1px solid #C6C6C6;padding:6px;color:#505050;background-color:#f2f2f2;text-align:left;">Manufacturer</th><th style="border:1px solid black;border:1px solid #C6C6C6;padding:6px;color:#505050;background-color:#f2f2f2;text-align:left;">Quantity</th><th style="border:1px solid black;border:1px solid #C6C6C6;padding:6px;color:#505050;background-color:#f2f2f2;text-align:left;"><span><span class="e14-init-shown e14-product-link-buynow" id="addProduct-auAmTio7-linked" style="white-space:nowrap;"><a class="jive-link-product-addtolist" href="https://www.element14.com/community/view-product.jspa?fsku=2819234~1,3154939~1,2855029~1,2753006~1,1834890~1,2857611~1,Avnet~1,2524076~1,3118166~1,1717759~1&amp;nsku=98Y9917~1,21AH3301~1,79X3948~1,16AC9366~1,84R8632~1,57AC2481~1,AVNET~1,02AH5567~1,52AH7139~1,63W1138~1&amp;COM=noscript" target="_blank"><span class="pf-widget-map pf-productlink-cart-icon"></span></a><a class="jive-link-product pf-embedded-product-link" href="https://www.element14.com/community/view-product.jspa?fsku=2819234~1,3154939~1,2855029~1,2753006~1,1834890~1,2857611~1,Avnet~1,2524076~1,3118166~1,1717759~1&amp;nsku=98Y9917~1,21AH3301~1,79X3948~1,16AC9366~1,84R8632~1,57AC2481~1,AVNET~1,02AH5567~1,52AH7139~1,63W1138~1&amp;COM=noscript" target="_blank">Buy Kit</a></span><span class="e14-init-hidden" id="addProduct-auAmTio7-unlinked">Buy Kit</span></span></th></tr></thead><tbody><tr><td style="border:1px solid black;border:1px solid #C6C6C6;padding:6px;">BAK Rechargeable Battery, 3.7 V, Lithium Polymer, 370 mAh, Connector</td><td style="border:1px solid black;border:1px solid #C6C6C6;padding:6px;">BAK</td><td style="border:1px solid black;border:1px solid #C6C6C6;padding:6px;">1</td><td style="border:1px solid black;border:1px solid #C6C6C6;padding:6px;"><span><span class="e14-init-shown e14-product-link-buynow" id="addProduct-rdMBZbdT-linked" style="white-space:nowrap;"><a class="jive-link-product-addtolist" href="https://www.element14.com/community/view-product.jspa?fsku=2819234~1&amp;nsku=98Y9917~1&amp;COM=noscript" target="_blank"><span class="pf-widget-map pf-productlink-cart-icon"></span></a><a class="jive-link-product pf-embedded-product-link" href="https://www.element14.com/community/view-product.jspa?fsku=2819234~1&amp;nsku=98Y9917~1&amp;COM=noscript" target="_blank">Buy Now</a></span><span class="e14-init-hidden" id="addProduct-rdMBZbdT-unlinked">Buy Now</span></span></td></tr><tr><td style="border:1px solid black;border:1px solid #C6C6C6;padding:6px;">MIDAS Graphic OLED, 96 x 16 Pixels, White on Black, 3V, I2C, 33mm x 10mm, -40 °C</td><td style="border:1px solid black;border:1px solid #C6C6C6;padding:6px;">Midas</td><td style="border:1px solid black;border:1px solid #C6C6C6;padding:6px;">1</td><td style="border:1px solid black;border:1px solid #C6C6C6;padding:6px;"><span><span class="e14-init-shown e14-product-link-buynow" id="addProduct-ZvruN32t-linked" style="white-space:nowrap;"><a class="jive-link-product-addtolist" href="https://www.element14.com/community/view-product.jspa?fsku=3154939~1&amp;nsku=21AH3301~1&amp;COM=noscript" target="_blank"><span class="pf-widget-map pf-productlink-cart-icon"></span></a><a class="jive-link-product pf-embedded-product-link" href="https://www.element14.com/community/view-product.jspa?fsku=3154939~1&amp;nsku=21AH3301~1&amp;COM=noscript" target="_blank">Buy Now</a></span><span class="e14-init-hidden" id="addProduct-ZvruN32t-unlinked">Buy Now</span></span></td></tr><tr><td style="border:1px solid black;border:1px solid #C6C6C6;padding:6px;">MCM Wire Kit, Jumper, Copper, 0.6 mm Diameter, 350 Piece</td><td style="border:1px solid black;border:1px solid #C6C6C6;padding:6px;">MCM</td><td style="border:1px solid black;border:1px solid #C6C6C6;padding:6px;">1</td><td style="border:1px solid black;border:1px solid #C6C6C6;padding:6px;"><span><span class="e14-init-shown e14-product-link-buynow" id="addProduct-5daciZpa-linked" style="white-space:nowrap;"><a class="jive-link-product-addtolist" href="https://www.element14.com/community/view-product.jspa?fsku=2855029~1&amp;nsku=79X3948~1&amp;COM=noscript" target="_blank"><span class="pf-widget-map pf-productlink-cart-icon"></span></a><a class="jive-link-product pf-embedded-product-link" href="https://www.element14.com/community/view-product.jspa?fsku=2855029~1&amp;nsku=79X3948~1&amp;COM=noscript" target="_blank">Buy Now</a></span><span class="e14-init-hidden" id="addProduct-5daciZpa-unlinked">Buy Now</span></span></td></tr><tr><td style="border:1px solid black;border:1px solid #C6C6C6;padding:6px;">FTDI Interface Analog Development Board LC234X, USB to UART Bridge</td><td style="border:1px solid black;border:1px solid #C6C6C6;padding:6px;">FTDI</td><td style="border:1px solid black;border:1px solid #C6C6C6;padding:6px;">1</td><td style="border:1px solid black;border:1px solid #C6C6C6;padding:6px;"><span><span class="e14-init-shown e14-product-link-buynow" id="addProduct-uKX3aTcT-linked" style="white-space:nowrap;"><a class="jive-link-product-addtolist" href="https://www.element14.com/community/view-product.jspa?fsku=2753006~1&amp;nsku=16AC9366~1&amp;COM=noscript" target="_blank"><span class="pf-widget-map pf-productlink-cart-icon"></span></a><a class="jive-link-product pf-embedded-product-link" href="https://www.element14.com/community/view-product.jspa?fsku=2753006~1&amp;nsku=16AC9366~1&amp;COM=noscript" target="_blank">Buy Now</a></span><span class="e14-init-hidden" id="addProduct-uKX3aTcT-unlinked">Buy Now</span></span></td></tr><tr><td style="border:1px solid black;border:1px solid #C6C6C6;padding:6px;">MICROCHIP Battery Charger for 1 Cell of Li-Ion, Li-Pol battery, 6V input, 4.2V / 500mA charge, SOT-23-5</td><td style="border:1px solid black;border:1px solid #C6C6C6;padding:6px;">Microchip</td><td style="border:1px solid black;border:1px solid #C6C6C6;padding:6px;">1</td><td style="border:1px solid black;border:1px solid #C6C6C6;padding:6px;"><span><span class="e14-init-shown e14-product-link-buynow" id="addProduct-1GGpd4YJ-linked" style="white-space:nowrap;"><a class="jive-link-product-addtolist" href="https://www.element14.com/community/view-product.jspa?fsku=1834890~1&amp;nsku=84R8632~1&amp;COM=noscript" target="_blank"><span class="pf-widget-map pf-productlink-cart-icon"></span></a><a class="jive-link-product pf-embedded-product-link" href="https://www.element14.com/community/view-product.jspa?fsku=1834890~1&amp;nsku=84R8632~1&amp;COM=noscript" target="_blank">Buy Now</a></span><span class="e14-init-hidden" id="addProduct-1GGpd4YJ-unlinked">Buy Now</span></span></td></tr><tr><td style="border:1px solid black;border:1px solid #C6C6C6;padding:6px;">MICROCHIP Fixed LDO Voltage Regulator, 2.1V to 6V, 210mV Drop, 3.3V/500mA Out, SOT-223-3</td><td style="border:1px solid black;border:1px solid #C6C6C6;padding:6px;">Microchip</td><td style="border:1px solid black;border:1px solid #C6C6C6;padding:6px;">1</td><td style="border:1px solid black;border:1px solid #C6C6C6;padding:6px;"><span><span class="e14-init-shown e14-product-link-buynow" id="addProduct-ACYKJiYH-linked" style="white-space:nowrap;"><a class="jive-link-product-addtolist" href="https://www.element14.com/community/view-product.jspa?fsku=2857611~1&amp;nsku=57AC2481~1&amp;COM=noscript" target="_blank"><span class="pf-widget-map pf-productlink-cart-icon"></span></a><a class="jive-link-product pf-embedded-product-link" href="https://www.element14.com/community/view-product.jspa?fsku=2857611~1&amp;nsku=57AC2481~1&amp;COM=noscript" target="_blank">Buy Now</a></span><span class="e14-init-hidden" id="addProduct-ACYKJiYH-unlinked">Buy Now</span></span></td></tr><tr><td style="border:1px solid black;border:1px solid #C6C6C6;padding:6px;">ESP32-S2-WROOM</td><td style="border:1px solid black;border:1px solid #C6C6C6;padding:6px;">espressif</td><td style="border:1px solid black;border:1px solid #C6C6C6;padding:6px;">1</td><td style="border:1px solid black;border:1px solid #C6C6C6;padding:6px;"><span><span class="e14-init-shown e14-product-link-buynow" id="addProduct-bJjEDA9Y-linked" style="white-space:nowrap;"><a class="jive-link-product-addtolist" href="https://www.element14.com/community/view-product.jspa?fsku=Avnet~1&amp;nsku=AVNET~1&amp;COM=noscript" target="_blank"><span class="pf-widget-map pf-productlink-cart-icon"></span></a><a class="jive-link-product pf-embedded-product-link" href="https://www.element14.com/community/view-product.jspa?fsku=Avnet~1&amp;nsku=AVNET~1&amp;COM=noscript" target="_blank">Buy Now</a></span><span class="e14-init-hidden" id="addProduct-bJjEDA9Y-unlinked">Buy Now</span></span></td></tr><tr><td style="border:1px solid black;border:1px solid #C6C6C6;padding:6px;">USB Connector, USB Type C, USB 3.1, Receptacle, 24 Ways, Surface Mount, Right Angle</td><td style="border:1px solid black;border:1px solid #C6C6C6;padding:6px;">Molex</td><td style="border:1px solid black;border:1px solid #C6C6C6;padding:6px;">1</td><td style="border:1px solid black;border:1px solid #C6C6C6;padding:6px;"><span><span class="e14-init-shown e14-product-link-buynow" id="addProduct-sBuoNZU7-linked" style="white-space:nowrap;"><a class="jive-link-product-addtolist" href="https://www.element14.com/community/view-product.jspa?fsku=2524076~1&amp;nsku=02AH5567~1&amp;COM=noscript" target="_blank"><span class="pf-widget-map pf-productlink-cart-icon"></span></a><a class="jive-link-product pf-embedded-product-link" href="https://www.element14.com/community/view-product.jspa?fsku=2524076~1&amp;nsku=02AH5567~1&amp;COM=noscript" target="_blank">Buy Now</a></span><span class="e14-init-hidden" id="addProduct-sBuoNZU7-unlinked">Buy Now</span></span></td></tr><tr><td style="border:1px solid black;border:1px solid #C6C6C6;padding:6px;">INA219 SOIC</td><td style="border:1px solid black;border:1px solid #C6C6C6;padding:6px;">TI</td><td style="border:1px solid black;border:1px solid #C6C6C6;padding:6px;">1</td><td style="border:1px solid black;border:1px solid #C6C6C6;padding:6px;"><span><span class="e14-init-shown e14-product-link-buynow" id="addProduct-4uHffjiP-linked" style="white-space:nowrap;"><a class="jive-link-product-addtolist" href="https://www.element14.com/community/view-product.jspa?fsku=3118166~1&amp;nsku=52AH7139~1&amp;COM=noscript" target="_blank"><span class="pf-widget-map pf-productlink-cart-icon"></span></a><a class="jive-link-product pf-embedded-product-link" href="https://www.element14.com/community/view-product.jspa?fsku=3118166~1&amp;nsku=52AH7139~1&amp;COM=noscript" target="_blank">Buy Now</a></span><span class="e14-init-hidden" id="addProduct-4uHffjiP-unlinked">Buy Now</span></span></td></tr><tr><td style="border:1px solid black;border:1px solid #C6C6C6;padding:6px;">0,1 Ohm current shunt resistor</td><td style="border:1px solid black;border:1px solid #C6C6C6;padding:6px;">panasonic</td><td style="border:1px solid black;border:1px solid #C6C6C6;padding:6px;">1</td><td style="border:1px solid black;border:1px solid #C6C6C6;padding:6px;"><span><span class="e14-init-shown e14-product-link-buynow" id="addProduct-uKIQ1SW1-linked" style="white-space:nowrap;"><a class="jive-link-product-addtolist" href="https://www.element14.com/community/view-product.jspa?fsku=1717759~1&amp;nsku=63W1138~1&amp;COM=noscript" target="_blank"><span class="pf-widget-map pf-productlink-cart-icon"></span></a><a class="jive-link-product pf-embedded-product-link" href="https://www.element14.com/community/view-product.jspa?fsku=1717759~1&amp;nsku=63W1138~1&amp;COM=noscript" target="_blank">Buy Now</a></span><span class="e14-init-hidden" id="addProduct-uKIQ1SW1-unlinked">Buy Now</span></span></td></tr></tbody></table><p style="margin:0;padding:0px;">&nbsp;</p><h2><span style="color:#3334ca;">Additional Parts:</span></h2><p style="margin:0;padding:0px;">&nbsp;</p><table border="1" class="jiveBorder" style="border:1px solid #000000;width:100%;"><thead><tr><th style="border:1px solid black;border:1px solid #000000;padding:2px;color:#ffffff;background-color:#6690bc;text-align:left;" valign="middle"><strong>Product Name</strong></th></tr></thead><tbody><tr><td style="border:1px solid black;border:1px solid #000000;padding:2px;"><span style="color:#303030;"><strong>ESP32-S2-WROOM</strong></span></td></tr></tbody></table> <div class="migration-injected-attachments"><div style="font-weight:bold;margin:15px 0 5px 0;">Attachments:</div><div></div><table style="border:0;"><tbody><tr><td colspan="2"><span class="_se_attachment" id="attid_https://www.element14.com/community/api/core/v3/attachments/312691"><a href="https://community.element14.com/cfs-file/__key/communityserver-wikis-components-files/00-00-00-03-81/MiniMultimeter_5F00_Resources.zip">community.element14.com/.../MiniMultimeter_5F00_Resources.zip</a></span></td></tr></tbody></table></div><div style="clear:both;"></div> <div style="font-size: 90%;">Tags: measure voltage arduino, make a multimeter, ina219 arduino, homemade multimeter, native usb esp32s2, esp32 project, esp32 multimeter, diy multimeter, e14presents_mayermakes, esp32-s2-wroom, breadboard, oled arduino, esp32-s2, esp32s2, friday_release, mayermakes, simple esp32s2 i2c on esp32</div>