https://community.element14.com/challenges-projects/element14-presents/project-videos/w/documents/4025/hacked-fetal-detector-music-synthesizer----episode-375en-USTelligent Community 12https://community.element14.com/challenges-projects/element14-presents/project-videos/w/documents/4025/hacked-fetal-detector-music-synthesizer----episode-375Fri, 04 Jan 2019 08:24:00 GMT93d5dcb4-84c2-446f-b2cb-99731719e767:fdc5e041-d433-4fde-ac1e-2ff0d3e2c239Matthttps://community.element14.com/challenges-projects/element14-presents/project-videos/w/documents/4025/hacked-fetal-detector-music-synthesizer----episode-375#commentsCurrent Revision posted to Documents by Matt on 1/4/2019 8:24:00 AM<br /> <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="image" 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;">Hacked Fetal Detector Music Synthesizer</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">MAYER MAKES VCP Profile</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> <p style="margin:0;padding:0px;">&nbsp;</p> <table style="display:block;margin:0 auto;width:80%;"> <tbody> <tr> <td style="padding-bottom:12px;"><span><a href="https://www.youtube.com/watch?v=bKhzHI6saQQ">www.youtube.com/watch</a></span></td> </tr> <tr> <td> <p style="background-color:#e9f6fc;border:1px solid #b8d7e5;margin:0;max-width:634px;padding:8px;"><span style="color:#000000;font-family:&#39;Open Sans&#39;, Arial, sans-serif;text-align:justify;">Fleamarkets can hold a lot of junk but also treasures, Clem bought a 70&#39;s medical device which was used to examine the heartbeat of unborn children and hacks it into a retro style synthesizer.you can use your own heartbeat or even that of any person(born yet or not) to alter the sound of the device. It features a 10 Stage Sequencer and 5 different filters to create various sounds and rhythms.</span></p> </td> </tr> </tbody> </table> <p style="margin:0;padding:0px;">&nbsp;</p> <h2 style="color:#333333;font-family:Arial, &#39;Lucida Grande&#39;, sans-serif;"><span style="color:#3334ca;font-family:inherit;font-style:inherit;font-weight:inherit;">Bill of Material:</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> <th style="background-color:#6690bc;border:1px solid #000000;color:#ffffff;padding:2px;text-align:left;" valign="middle"><strong>Quantity<br /></strong></th> <th style="background-color:#6690bc;border:1px solid #000000;color:#ffffff;padding:2px;text-align:left;" valign="middle"><span><a id="e14-product-link-1905a" data-at-areainteracted="rte-content" data-at-type="click" data-at-link-type="button" href="https://referral.element14.com/OrderCodeView?fsku=1103036~3,9473378~20,1144803,1106100,1282534,1564884,1662646~2,93390600,93394340,9696466~2,1219453~2&nsku=52W9087~3,98K4965~20,25M4591,CD4027BE,25M4047,60K6190,29X2172~2,38K03280,38K03650,9696466~2,62W7913~2&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('1905a'));" data-farnell="1103036~3,9473378~20,1144803,1106100,1282534,1564884,1662646~2,9339060~10,9339434~10,9696466~2,1219453~2" data-newark="52W9087~3,98K4965~20,25M4591,CD4027BE,25M4047,60K6190,29X2172~2,38K0328~10,38K0365~10,9696466~2,62W7913~2" 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 #000000;padding:2px;"> <p style="margin:0;"><strong>555 Timer IC DIP8</strong></p> </td> <td style="border:1px solid #000000;padding:2px;">3</td> <td style="border:1px solid #000000;padding:2px;"><span><a id="e14-product-link-f05f8" data-at-areainteracted="rte-content" data-at-type="click" data-at-link-type="link" href="https://referral.element14.com/OrderCodeView?fsku=1103036~3&nsku=52W9087~3&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('f05f8'));" data-farnell="1103036~3" data-newark="52W9087~3" data-comoverride="" data-cmpoverride="" data-cpc="" data-avnetemea="" data-avnetema="" data-avnetasia="" >Buy Now</a> </span></td> </tr> <tr> <td style="border:1px solid #000000;padding:2px;"> <p style="margin:0;"><strong>SPDT switch 5A Panelmount</strong></p> </td> <td style="border:1px solid #000000;padding:2px;">20</td> <td style="border:1px solid #000000;padding:2px;"><span><a id="e14-product-link-c2d16" data-at-areainteracted="rte-content" data-at-type="click" data-at-link-type="link" href="https://referral.element14.com/OrderCodeView?fsku=9473378~20&nsku=98K4965~20&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('c2d16'));" data-farnell="9473378~20" data-newark="98K4965~20" data-comoverride="" data-cmpoverride="" data-cpc="" data-avnetemea="" data-avnetema="" data-avnetasia="" >Buy Now</a> </span></td> </tr> <tr> <td style="border:1px solid #000000;padding:2px;"><strong>10 Turn Potentiometer 5kOhm</strong></td> <td style="border:1px solid #000000;padding:2px;">1</td> <td style="border:1px solid #000000;padding:2px;"><span><a id="e14-product-link-108f8" data-at-areainteracted="rte-content" data-at-type="click" data-at-link-type="link" href="https://referral.element14.com/OrderCodeView?fsku=1144803&nsku=25M4591&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('108f8'));" data-farnell="1144803" data-newark="25M4591" data-comoverride="" data-cmpoverride="" data-cpc="" data-avnetemea="" data-avnetema="" data-avnetasia="" >Buy Now</a> </span></td> </tr> <tr> <td style="border:1px solid #000000;padding:2px;"> <p style="margin:0;"><strong>Decade counter/Divider IC</strong></p> </td> <td style="border:1px solid #000000;padding:2px;">1</td> <td style="border:1px solid #000000;padding:2px;"><span><a id="e14-product-link-a557a" data-at-areainteracted="rte-content" data-at-type="click" data-at-link-type="link" href="https://referral.element14.com/OrderCodeView?fsku=1106100&nsku=CD4027BE&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('a557a'));" data-farnell="1106100" data-newark="CD4027BE" data-comoverride="" data-cmpoverride="" data-cpc="" data-avnetemea="" data-avnetema="" data-avnetasia="" >Buy Now</a> </span></td> </tr> <tr> <td style="border:1px solid #000000;padding:2px;"> <p style="margin:0;"><strong>Knob Round 6mm / 50mmm with position marker</strong></p> </td> <td style="border:1px solid #000000;padding:2px;">1</td> <td style="border:1px solid #000000;padding:2px;"><span><a id="e14-product-link-1826d" data-at-areainteracted="rte-content" data-at-type="click" data-at-link-type="link" href="https://referral.element14.com/OrderCodeView?fsku=1282534&nsku=25M4047&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('1826d'));" data-farnell="1282534" data-newark="25M4047" data-comoverride="" data-cmpoverride="" data-cpc="" data-avnetemea="" data-avnetema="" data-avnetasia="" >Buy Now</a> </span></td> </tr> <tr> <td style="border:1px solid #000000;padding:2px;"> <p style="margin:0;"><strong>Quad Amplifier IC</strong></p> </td> <td style="border:1px solid #000000;padding:2px;">1</td> <td style="border:1px solid #000000;padding:2px;"><span><a id="e14-product-link-af223" data-at-areainteracted="rte-content" data-at-type="click" data-at-link-type="link" href="https://referral.element14.com/OrderCodeView?fsku=1564884&nsku=60K6190&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('af223'));" data-farnell="1564884" data-newark="60K6190" data-comoverride="" data-cmpoverride="" data-cpc="" data-avnetemea="" data-avnetema="" data-avnetasia="" >Buy Now</a> </span></td> </tr> <tr> <td style="border:1px solid #000000;padding:2px;"> <p style="margin:0;"><strong>Ansmann NIMH AA 1,3Ah 4-Pack</strong></p> </td> <td style="border:1px solid #000000;padding:2px;">2</td> <td style="border:1px solid #000000;padding:2px;"><span><a id="e14-product-link-05502" data-at-areainteracted="rte-content" data-at-type="click" data-at-link-type="link" href="https://referral.element14.com/OrderCodeView?fsku=1662646~2&nsku=29X2172~2&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('05502'));" data-farnell="1662646~2" data-newark="29X2172~2" data-comoverride="" data-cmpoverride="" data-cpc="" data-avnetemea="" data-avnetema="" data-avnetasia="" >Buy Now</a> </span></td> </tr> <tr> <td style="border:1px solid #000000;padding:2px;"> <p style="margin:0;"><strong>Resistor 10kOhm</strong></p> </td> <td style="border:1px solid #000000;padding:2px;">10</td> <td style="border:1px solid #000000;padding:2px;"><span><a id="e14-product-link-882fc" data-at-areainteracted="rte-content" data-at-type="click" data-at-link-type="link" href="https://referral.element14.com/OrderCodeView?fsku=93390600&nsku=38K03280&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('882fc'));" data-farnell="9339060~10" data-newark="38K0328~10" data-comoverride="" data-cmpoverride="" data-cpc="" data-avnetemea="" data-avnetema="" data-avnetasia="" >Buy Now</a> </span></td> </tr> <tr> <td style="border:1px solid #000000;padding:2px;"> <p style="margin:0;"><strong>Resistor 33kOhm</strong></p> </td> <td style="border:1px solid #000000;padding:2px;">10</td> <td style="border:1px solid #000000;padding:2px;"><span><a id="e14-product-link-6119f" data-at-areainteracted="rte-content" data-at-type="click" data-at-link-type="link" href="https://referral.element14.com/OrderCodeView?fsku=93394340&nsku=38K03650&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('6119f'));" data-farnell="9339434~10" data-newark="38K0365~10" data-comoverride="" data-cmpoverride="" data-cpc="" data-avnetemea="" data-avnetema="" data-avnetasia="" >Buy Now</a> </span></td> </tr> <tr> <td style="border:1px solid #000000;padding:2px;"> <p style="margin:0;"><strong>Electrolytic Capacitor 10uF</strong></p> </td> <td style="border:1px solid #000000;padding:2px;">2</td> <td style="border:1px solid #000000;padding:2px;"><span><a id="e14-product-link-5a46c" data-at-areainteracted="rte-content" data-at-type="click" data-at-link-type="link" href="https://referral.element14.com/OrderCodeView?fsku=9696466~2&nsku=62W7585~2&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('5a46c'));" data-farnell="9696466~2" data-newark="62W7585~2" data-comoverride="" data-cmpoverride="" data-cpc="" data-avnetemea="" data-avnetema="" data-avnetasia="" >Buy Now</a> </span></td> </tr> <tr> <td style="border:1px solid #000000;padding:2px;"> <p style="margin:0;"><strong>Electrolytic Capacitor 100uF</strong></p> </td> <td style="border:1px solid #000000;padding:2px;">2</td> <td style="border:1px solid #000000;padding:2px;"><span><a id="e14-product-link-704e6" data-at-areainteracted="rte-content" data-at-type="click" data-at-link-type="link" href="https://referral.element14.com/OrderCodeView?fsku=1219453~2&nsku=62W7913~2&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('704e6'));" data-farnell="1219453~2" data-newark="62W7913~2" 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> <th style="background-color:#6690bc;border:1px solid #000000;color:#ffffff;padding:2px;text-align:left;" valign="middle"><strong>Quantity<br /></strong></th> </tr> </thead> <tbody> <tr> <td style="border:1px solid #000000;padding:2px;"> <p style="margin:0;"><strong>Fetal Detector from the Fleamarket, or get a new one for cheap on the internet.</strong></p> </td> <td style="border:1px solid #000000;padding:2px;">1</td> </tr> <tr> <td style="border:1px solid #000000;padding:2px;"> <p style="margin:0;"><strong>Order a wild selection of Caps and resistors to experiment around until you get the desired sound.</strong></p> </td> <td style="border:1px solid #000000;padding:2px;">1</td> </tr> <tr> <td style="border:1px solid #000000;padding:2px;"> <p style="margin:0;"><strong>Differently colored wire to keep track of all the connections.</strong></p> </td> <td style="border:1px solid #000000;padding:2px;">1</td> </tr> </tbody> </table> <p style="margin:0;padding:0px;">&nbsp;</p> <p style="margin:0;"><br /><br /></p> <h2></h2> <p style="margin:0;"><br /><br /></p><div style="clear:both;"></div> <div style="font-size: 90%;">Tags: capacitor, potentiometer, arduino uno, e14presents_mayermakes, green tech, 555_timer, green technology, fetal detector music synthesizer, decade counter, resistor, summer of green technology, friday_release, mayermakes, music synthesizer</div> https://community.element14.com/challenges-projects/element14-presents/project-videos/w/documents/4025/hacked-fetal-detector-music-synthesizer----episode-375/revision/3Fri, 14 Apr 2023 15:28:20 GMT93d5dcb4-84c2-446f-b2cb-99731719e767:fdc5e041-d433-4fde-ac1e-2ff0d3e2c239pchanhttps://community.element14.com/challenges-projects/element14-presents/project-videos/w/documents/4025/hacked-fetal-detector-music-synthesizer----episode-375#commentsRevision 3 posted to Documents by pchan on 4/14/2023 3:28:20 PM<br /> <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="image" 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;">Hacked Fetal Detector Music Synthesizer</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> <table style="display:block;margin:0 auto;width:80%;"> <tbody> <tr> <td style="padding-bottom:12px;"><span><a href="https://www.youtube.com/watch?v=bKhzHI6saQQ">www.youtube.com/watch</a></span></td> </tr> <tr> <td> <p style="background-color:#e9f6fc;border:1px solid #b8d7e5;margin:0;max-width:634px;padding:8px;"><span style="color:#000000;font-family:&#39;Open Sans&#39;, Arial, sans-serif;text-align:justify;">Fleamarkets can hold a lot of junk but also treasures, Clem bought a 70&#39;s medical device which was used to examine the heartbeat of unborn children and hacks it into a retro style synthesizer.you can use your own heartbeat or even that of any person(born yet or not) to alter the sound of the device. It features a 10 Stage Sequencer and 5 different filters to create various sounds and rhythms.</span></p> </td> </tr> </tbody> </table> <p style="margin:0;padding:0px;">&nbsp;</p> <h2 style="color:#333333;font-family:Arial, &#39;Lucida Grande&#39;, sans-serif;"><span style="color:#3334ca;font-family:inherit;font-style:inherit;font-weight:inherit;">Bill of Material:</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> <th style="background-color:#6690bc;border:1px solid #000000;color:#ffffff;padding:2px;text-align:left;" valign="middle"><strong>Quantity<br /></strong></th> <th style="background-color:#6690bc;border:1px solid #000000;color:#ffffff;padding:2px;text-align:left;" valign="middle"><span><a id="e14-product-link-bab6a" data-at-areainteracted="rte-content" data-at-type="click" data-at-link-type="button" href="https://referral.element14.com/OrderCodeView?fsku=1103036~3,9473378~20,1144803,1106100,1282534,1564884,1662646~2,93390600,93394340,9696466~2,1219453~2&nsku=52W9087~3,98K4965~20,25M4591,CD4027BE,25M4047,60K6190,29X2172~2,38K03280,38K03650,9696466~2,62W7913~2&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('bab6a'));" data-farnell="1103036~3,9473378~20,1144803,1106100,1282534,1564884,1662646~2,9339060~10,9339434~10,9696466~2,1219453~2" data-newark="52W9087~3,98K4965~20,25M4591,CD4027BE,25M4047,60K6190,29X2172~2,38K0328~10,38K0365~10,9696466~2,62W7913~2" 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 #000000;padding:2px;"> <p style="margin:0;"><strong>555 Timer IC DIP8</strong></p> </td> <td style="border:1px solid #000000;padding:2px;">3</td> <td style="border:1px solid #000000;padding:2px;"><span><a id="e14-product-link-9e34b" data-at-areainteracted="rte-content" data-at-type="click" data-at-link-type="link" href="https://referral.element14.com/OrderCodeView?fsku=1103036~3&nsku=52W9087~3&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('9e34b'));" data-farnell="1103036~3" data-newark="52W9087~3" data-comoverride="" data-cmpoverride="" data-cpc="" data-avnetemea="" data-avnetema="" data-avnetasia="" >Buy Now</a> </span></td> </tr> <tr> <td style="border:1px solid #000000;padding:2px;"> <p style="margin:0;"><strong>SPDT switch 5A Panelmount</strong></p> </td> <td style="border:1px solid #000000;padding:2px;">20</td> <td style="border:1px solid #000000;padding:2px;"><span><a id="e14-product-link-c3f40" data-at-areainteracted="rte-content" data-at-type="click" data-at-link-type="link" href="https://referral.element14.com/OrderCodeView?fsku=9473378~20&nsku=98K4965~20&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('c3f40'));" data-farnell="9473378~20" data-newark="98K4965~20" data-comoverride="" data-cmpoverride="" data-cpc="" data-avnetemea="" data-avnetema="" data-avnetasia="" >Buy Now</a> </span></td> </tr> <tr> <td style="border:1px solid #000000;padding:2px;"><strong>10 Turn Potentiometer 5kOhm</strong></td> <td style="border:1px solid #000000;padding:2px;">1</td> <td style="border:1px solid #000000;padding:2px;"><span><a id="e14-product-link-79bf9" data-at-areainteracted="rte-content" data-at-type="click" data-at-link-type="link" href="https://referral.element14.com/OrderCodeView?fsku=1144803&nsku=25M4591&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('79bf9'));" data-farnell="1144803" data-newark="25M4591" data-comoverride="" data-cmpoverride="" data-cpc="" data-avnetemea="" data-avnetema="" data-avnetasia="" >Buy Now</a> </span></td> </tr> <tr> <td style="border:1px solid #000000;padding:2px;"> <p style="margin:0;"><strong>Decade counter/Divider IC</strong></p> </td> <td style="border:1px solid #000000;padding:2px;">1</td> <td style="border:1px solid #000000;padding:2px;"><span><a id="e14-product-link-3dcd0" data-at-areainteracted="rte-content" data-at-type="click" data-at-link-type="link" href="https://referral.element14.com/OrderCodeView?fsku=1106100&nsku=CD4027BE&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('3dcd0'));" data-farnell="1106100" data-newark="CD4027BE" data-comoverride="" data-cmpoverride="" data-cpc="" data-avnetemea="" data-avnetema="" data-avnetasia="" >Buy Now</a> </span></td> </tr> <tr> <td style="border:1px solid #000000;padding:2px;"> <p style="margin:0;"><strong>Knob Round 6mm / 50mmm with position marker</strong></p> </td> <td style="border:1px solid #000000;padding:2px;">1</td> <td style="border:1px solid #000000;padding:2px;"><span><a id="e14-product-link-52c64" data-at-areainteracted="rte-content" data-at-type="click" data-at-link-type="link" href="https://referral.element14.com/OrderCodeView?fsku=1282534&nsku=25M4047&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('52c64'));" data-farnell="1282534" data-newark="25M4047" data-comoverride="" data-cmpoverride="" data-cpc="" data-avnetemea="" data-avnetema="" data-avnetasia="" >Buy Now</a> </span></td> </tr> <tr> <td style="border:1px solid #000000;padding:2px;"> <p style="margin:0;"><strong>Quad Amplifier IC</strong></p> </td> <td style="border:1px solid #000000;padding:2px;">1</td> <td style="border:1px solid #000000;padding:2px;"><span><a id="e14-product-link-cef39" data-at-areainteracted="rte-content" data-at-type="click" data-at-link-type="link" href="https://referral.element14.com/OrderCodeView?fsku=1564884&nsku=60K6190&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('cef39'));" data-farnell="1564884" data-newark="60K6190" data-comoverride="" data-cmpoverride="" data-cpc="" data-avnetemea="" data-avnetema="" data-avnetasia="" >Buy Now</a> </span></td> </tr> <tr> <td style="border:1px solid #000000;padding:2px;"> <p style="margin:0;"><strong>Ansmann NIMH AA 1,3Ah 4-Pack</strong></p> </td> <td style="border:1px solid #000000;padding:2px;">2</td> <td style="border:1px solid #000000;padding:2px;"><span><a id="e14-product-link-1eb94" data-at-areainteracted="rte-content" data-at-type="click" data-at-link-type="link" href="https://referral.element14.com/OrderCodeView?fsku=1662646~2&nsku=29X2172~2&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('1eb94'));" data-farnell="1662646~2" data-newark="29X2172~2" data-comoverride="" data-cmpoverride="" data-cpc="" data-avnetemea="" data-avnetema="" data-avnetasia="" >Buy Now</a> </span></td> </tr> <tr> <td style="border:1px solid #000000;padding:2px;"> <p style="margin:0;"><strong>Resistor 10kOhm</strong></p> </td> <td style="border:1px solid #000000;padding:2px;">10</td> <td style="border:1px solid #000000;padding:2px;"><span><a id="e14-product-link-249b6" data-at-areainteracted="rte-content" data-at-type="click" data-at-link-type="link" href="https://referral.element14.com/OrderCodeView?fsku=93390600&nsku=38K03280&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('249b6'));" data-farnell="9339060~10" data-newark="38K0328~10" data-comoverride="" data-cmpoverride="" data-cpc="" data-avnetemea="" data-avnetema="" data-avnetasia="" >Buy Now</a> </span></td> </tr> <tr> <td style="border:1px solid #000000;padding:2px;"> <p style="margin:0;"><strong>Resistor 33kOhm</strong></p> </td> <td style="border:1px solid #000000;padding:2px;">10</td> <td style="border:1px solid #000000;padding:2px;"><span><a id="e14-product-link-15738" data-at-areainteracted="rte-content" data-at-type="click" data-at-link-type="link" href="https://referral.element14.com/OrderCodeView?fsku=93394340&nsku=38K03650&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('15738'));" data-farnell="9339434~10" data-newark="38K0365~10" data-comoverride="" data-cmpoverride="" data-cpc="" data-avnetemea="" data-avnetema="" data-avnetasia="" >Buy Now</a> </span></td> </tr> <tr> <td style="border:1px solid #000000;padding:2px;"> <p style="margin:0;"><strong>Electrolytic Capacitor 10uF</strong></p> </td> <td style="border:1px solid #000000;padding:2px;">2</td> <td style="border:1px solid #000000;padding:2px;"><span><a id="e14-product-link-edead" data-at-areainteracted="rte-content" data-at-type="click" data-at-link-type="link" href="https://referral.element14.com/OrderCodeView?fsku=9696466~2&nsku=62W7585~2&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('edead'));" data-farnell="9696466~2" data-newark="62W7585~2" data-comoverride="" data-cmpoverride="" data-cpc="" data-avnetemea="" data-avnetema="" data-avnetasia="" >Buy Now</a> </span></td> </tr> <tr> <td style="border:1px solid #000000;padding:2px;"> <p style="margin:0;"><strong>Electrolytic Capacitor 100uF</strong></p> </td> <td style="border:1px solid #000000;padding:2px;">2</td> <td style="border:1px solid #000000;padding:2px;"><span><a id="e14-product-link-8df26" data-at-areainteracted="rte-content" data-at-type="click" data-at-link-type="link" href="https://referral.element14.com/OrderCodeView?fsku=1219453~2&nsku=62W7913~2&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('8df26'));" data-farnell="1219453~2" data-newark="62W7913~2" 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> <th style="background-color:#6690bc;border:1px solid #000000;color:#ffffff;padding:2px;text-align:left;" valign="middle"><strong>Quantity<br /></strong></th> </tr> </thead> <tbody> <tr> <td style="border:1px solid #000000;padding:2px;"> <p style="margin:0;"><strong>Fetal Detector from the Fleamarket, or get a new one for cheap on the internet.</strong></p> </td> <td style="border:1px solid #000000;padding:2px;">1</td> </tr> <tr> <td style="border:1px solid #000000;padding:2px;"> <p style="margin:0;"><strong>Order a wild selection of Caps and resistors to experiment around until you get the desired sound.</strong></p> </td> <td style="border:1px solid #000000;padding:2px;">1</td> </tr> <tr> <td style="border:1px solid #000000;padding:2px;"> <p style="margin:0;"><strong>Differently colored wire to keep track of all the connections.</strong></p> </td> <td style="border:1px solid #000000;padding:2px;">1</td> </tr> </tbody> </table> <p style="margin:0;padding:0px;">&nbsp;</p> <p style="margin:0;"><br /><br /></p> <h2></h2> <p style="margin:0;"><br /><br /></p><div style="clear:both;"></div> <div style="font-size: 90%;">Tags: capacitor, potentiometer, arduino uno, e14presents_mayermakes, green tech, 555_timer, green technology, fetal detector music synthesizer, decade counter, resistor, summer of green technology, friday_release, mayermakes, music synthesizer</div> https://community.element14.com/challenges-projects/element14-presents/project-videos/w/documents/4025/hacked-fetal-detector-music-synthesizer----episode-375/revision/2Thu, 17 Mar 2022 09:02:47 GMT93d5dcb4-84c2-446f-b2cb-99731719e767:fdc5e041-d433-4fde-ac1e-2ff0d3e2c239Matthttps://community.element14.com/challenges-projects/element14-presents/project-videos/w/documents/4025/hacked-fetal-detector-music-synthesizer----episode-375#commentsRevision 2 posted to Documents by Matt on 3/17/2022 9:02:47 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="image" 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;">Hacked Fetal Detector Music Synthesizer</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><table style="width:80%;display:block;margin:0 auto;"><tbody><tr><td style="padding-bottom:12px;"><span><a href="https://www.youtube.com/watch?v=bKhzHI6saQQ">www.youtube.com/watch</a></span></td></tr><tr><td><p style="margin:0;border:1px solid #b8d7e5;background-color:#e9f6fc;padding:8px;max-width:634px;"><span style="color:#000000;font-family:&#39;Open Sans&#39;, Arial, sans-serif;text-align:justify;">Fleamarkets can hold a lot of junk but also treasures, Clem bought a 70&#39;s medical device which was used to examine the heartbeat of unborn children and hacks it into a retro style synthesizer.you can use your own heartbeat or even that of any person(born yet or not) to alter the sound of the device. It features a 10 Stage Sequencer and 5 different filters to create various sounds and rhythms.</span></p></td></tr></tbody></table><p style="margin:0;padding:0px;">&nbsp;</p><h2 style="font-family:Arial, &#39;Lucida Grande&#39;, sans-serif;color:#333333;"><span style="font-weight:inherit;font-style:inherit;font-family:inherit;color:#3334ca;">Bill of Material:</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><th style="border:1px solid black;border:1px solid #000000;padding:2px;color:#ffffff;background-color:#6690bc;text-align:left;" valign="middle"><strong>Quantity<br /></strong></th><th style="border:1px solid black;border:1px solid #000000;padding:2px;color:#ffffff;background-color:#6690bc;text-align:left;" valign="middle"><span><a id="e14-product-link-eed6c" data-at-areainteracted="rte-content" data-at-type="click" data-at-link-type="button" href="https://referral.element14.com/OrderCodeView?fsku=1103036~3,9473378~20,1144803,1106100,1282534,1564884,1662646~2,93390600,93394340,9696466~2,1219453~2&nsku=52W9087~3,98K4965~20,25M4591,CD4027BE,25M4047,60K6190,29X2172~2,38K03280,38K03650,9696466~2,62W7913~2&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('eed6c'));" data-farnell="1103036~3,9473378~20,1144803,1106100,1282534,1564884,1662646~2,9339060~10,9339434~10,9696466~2,1219453~2" data-newark="52W9087~3,98K4965~20,25M4591,CD4027BE,25M4047,60K6190,29X2172~2,38K0328~10,38K0365~10,9696466~2,62W7913~2" 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 #000000;padding:2px;"><p style="margin:0;"><strong>555 Timer IC DIP8</strong></p></td><td style="border:1px solid black;border:1px solid #000000;padding:2px;">3</td><td style="border:1px solid black;border:1px solid #000000;padding:2px;"><span><a id="e14-product-link-5dd56" data-at-areainteracted="rte-content" data-at-type="click" data-at-link-type="link" href="https://referral.element14.com/OrderCodeView?fsku=1103036~3&nsku=52W9087~3&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('5dd56'));" data-farnell="1103036~3" data-newark="52W9087~3" 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 #000000;padding:2px;"><p style="margin:0;"><strong>SPDT switch 5A Panelmount</strong></p></td><td style="border:1px solid black;border:1px solid #000000;padding:2px;">20</td><td style="border:1px solid black;border:1px solid #000000;padding:2px;"><span><a id="e14-product-link-af12a" data-at-areainteracted="rte-content" data-at-type="click" data-at-link-type="link" href="https://referral.element14.com/OrderCodeView?fsku=9473378~20&nsku=98K4965~20&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('af12a'));" data-farnell="9473378~20" data-newark="98K4965~20" 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 #000000;padding:2px;"><strong>10 Turn Potentiometer 5kOhm</strong></td><td style="border:1px solid black;border:1px solid #000000;padding:2px;">1</td><td style="border:1px solid black;border:1px solid #000000;padding:2px;"><span><a id="e14-product-link-9a932" data-at-areainteracted="rte-content" data-at-type="click" data-at-link-type="link" href="https://referral.element14.com/OrderCodeView?fsku=1144803&nsku=25M4591&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('9a932'));" data-farnell="1144803" data-newark="25M4591" 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 #000000;padding:2px;"><p style="margin:0;"><strong>Decade counter/Divider IC</strong></p></td><td style="border:1px solid black;border:1px solid #000000;padding:2px;">1</td><td style="border:1px solid black;border:1px solid #000000;padding:2px;"><span><a id="e14-product-link-a4db2" data-at-areainteracted="rte-content" data-at-type="click" data-at-link-type="link" href="https://referral.element14.com/OrderCodeView?fsku=1106100&nsku=CD4027BE&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('a4db2'));" data-farnell="1106100" data-newark="CD4027BE" 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 #000000;padding:2px;"><p style="margin:0;"><strong>Knob Round 6mm / 50mmm with position marker</strong></p></td><td style="border:1px solid black;border:1px solid #000000;padding:2px;">1</td><td style="border:1px solid black;border:1px solid #000000;padding:2px;"><span><a id="e14-product-link-31396" data-at-areainteracted="rte-content" data-at-type="click" data-at-link-type="link" href="https://referral.element14.com/OrderCodeView?fsku=1282534&nsku=25M4047&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('31396'));" data-farnell="1282534" data-newark="25M4047" 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 #000000;padding:2px;"><p style="margin:0;"><strong>Quad Amplifier IC</strong></p></td><td style="border:1px solid black;border:1px solid #000000;padding:2px;">1</td><td style="border:1px solid black;border:1px solid #000000;padding:2px;"><span><a id="e14-product-link-b96da" data-at-areainteracted="rte-content" data-at-type="click" data-at-link-type="link" href="https://referral.element14.com/OrderCodeView?fsku=1564884&nsku=60K6190&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('b96da'));" data-farnell="1564884" data-newark="60K6190" 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 #000000;padding:2px;"><p style="margin:0;"><strong>Ansmann NIMH AA 1,3Ah 4-Pack</strong></p></td><td style="border:1px solid black;border:1px solid #000000;padding:2px;">2</td><td style="border:1px solid black;border:1px solid #000000;padding:2px;"><span><a id="e14-product-link-11613" data-at-areainteracted="rte-content" data-at-type="click" data-at-link-type="link" href="https://referral.element14.com/OrderCodeView?fsku=1662646~2&nsku=29X2172~2&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('11613'));" data-farnell="1662646~2" data-newark="29X2172~2" 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 #000000;padding:2px;"><p style="margin:0;"><strong>Resistor 10kOhm</strong></p></td><td style="border:1px solid black;border:1px solid #000000;padding:2px;">10</td><td style="border:1px solid black;border:1px solid #000000;padding:2px;"><span><a id="e14-product-link-01d8e" data-at-areainteracted="rte-content" data-at-type="click" data-at-link-type="link" href="https://referral.element14.com/OrderCodeView?fsku=93390600&nsku=38K03280&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('01d8e'));" data-farnell="9339060~10" data-newark="38K0328~10" 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 #000000;padding:2px;"><p style="margin:0;"><strong>Resistor 33kOhm</strong></p></td><td style="border:1px solid black;border:1px solid #000000;padding:2px;">10</td><td style="border:1px solid black;border:1px solid #000000;padding:2px;"><span><a id="e14-product-link-1d4c0" data-at-areainteracted="rte-content" data-at-type="click" data-at-link-type="link" href="https://referral.element14.com/OrderCodeView?fsku=93394340&nsku=38K03650&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('1d4c0'));" data-farnell="9339434~10" data-newark="38K0365~10" 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 #000000;padding:2px;"><p style="margin:0;"><strong>Electrolytic Capacitor 10uF</strong></p></td><td style="border:1px solid black;border:1px solid #000000;padding:2px;">2</td><td style="border:1px solid black;border:1px solid #000000;padding:2px;"><span><a id="e14-product-link-e7ae7" data-at-areainteracted="rte-content" data-at-type="click" data-at-link-type="link" href="https://referral.element14.com/OrderCodeView?fsku=9696466~2&nsku=62W7585~2&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('e7ae7'));" data-farnell="9696466~2" data-newark="62W7585~2" 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 #000000;padding:2px;"><p style="margin:0;"><strong>Electrolytic Capacitor 100uF</strong></p></td><td style="border:1px solid black;border:1px solid #000000;padding:2px;">2</td><td style="border:1px solid black;border:1px solid #000000;padding:2px;"><span><a id="e14-product-link-74a30" data-at-areainteracted="rte-content" data-at-type="click" data-at-link-type="link" href="https://referral.element14.com/OrderCodeView?fsku=1219453~2&nsku=62W7913~2&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('74a30'));" data-farnell="1219453~2" data-newark="62W7913~2" 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><th style="border:1px solid black;border:1px solid #000000;padding:2px;color:#ffffff;background-color:#6690bc;text-align:left;" valign="middle"><strong>Quantity<br /></strong></th></tr></thead><tbody><tr><td style="border:1px solid black;border:1px solid #000000;padding:2px;"><p style="margin:0;"><strong>Fetal Detector from the Fleamarket, or get a new one for cheap on the internet.</strong></p></td><td style="border:1px solid black;border:1px solid #000000;padding:2px;">1</td></tr><tr><td style="border:1px solid black;border:1px solid #000000;padding:2px;"><p style="margin:0;"><strong>Order a wild selection of Caps and resistors to experiment around until you get the desired sound.</strong></p></td><td style="border:1px solid black;border:1px solid #000000;padding:2px;">1</td></tr><tr><td style="border:1px solid black;border:1px solid #000000;padding:2px;"><p style="margin:0;"><strong>Differently colored wire to keep track of all the connections.</strong></p></td><td style="border:1px solid black;border:1px solid #000000;padding:2px;">1</td></tr></tbody></table><p style="margin:0;padding:0px;">&nbsp;</p><p style="margin:0;"><br /><br /></p><h2></h2><p style="margin:0;"><br /><br /></p><div style="clear:both;"></div> <div style="font-size: 90%;">Tags: capacitor, potentiometer, arduino uno, e14presents_mayermakes, 555_timer, fetal detector music synthesizer, decade counter, resistor, friday_release, mayermakes, music synthesizer</div> https://community.element14.com/challenges-projects/element14-presents/project-videos/w/documents/4025/hacked-fetal-detector-music-synthesizer----episode-375/revision/1Fri, 25 Jan 2019 14:53:19 GMT93d5dcb4-84c2-446f-b2cb-99731719e767:fdc5e041-d433-4fde-ac1e-2ff0d3e2c239tariq.ahmadhttps://community.element14.com/challenges-projects/element14-presents/project-videos/w/documents/4025/hacked-fetal-detector-music-synthesizer----episode-375#commentsRevision 1 posted to Documents by tariq.ahmad on 1/25/2019 2:53:19 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="image" 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;">Hacked Fetal Detector Music Synthesizer</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><table style="width:80%;display:block;margin:0 auto;"><tbody><tr><td style="padding-bottom:12px;"><span><a href="https://www.youtube.com/watch?v=bKhzHI6saQQ">www.youtube.com/watch</a></span></td></tr><tr><td><p style="margin:0;border:1px solid #b8d7e5;background-color:#e9f6fc;padding:8px;max-width:634px;"><span style="color:#000000;font-family:&#39;Open Sans&#39;, Arial, sans-serif;text-align:justify;">Fleamarkets can hold a lot of junk but also treasures, Clem bought a 70&#39;s medical device which was used to examine the heartbeat of unborn children and hacks it into a retro style synthesizer.you can use your own heartbeat or even that of any person(born yet or not) to alter the sound of the device. It features a 10 Stage Sequencer and 5 different filters to create various sounds and rhythms.</span></p></td></tr></tbody></table><p style="margin:0;padding:0px;">&nbsp;</p><h2 style="font-family:Arial, &#39;Lucida Grande&#39;, sans-serif;color:#333333;"><span style="font-weight:inherit;font-style:inherit;font-family:inherit;color:#3334ca;">Bill of Material:</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><th style="border:1px solid black;border:1px solid #000000;padding:2px;color:#ffffff;background-color:#6690bc;text-align:left;" valign="middle"><strong>Quantity<br /></strong></th><th style="border:1px solid black;border:1px solid #000000;padding:2px;color:#ffffff;background-color:#6690bc;text-align:left;" valign="middle"><span><span class="e14-init-shown e14-product-link-buynow" id="addProduct-NlvBKIjX-linked" style="white-space:nowrap;"><a class="jive-link-product-addtolist" href="https://www.element14.com/community/view-product.jspa?fsku=1103036~3,9473378~20,1144803,1106100,1282534,1564884,1662646~2,9339060~10,9339434~10,9696466~2,1219453~2&amp;nsku=52W9087~3,98K4965~20,25M4591,CD4027BE,25M4047,60K6190,29X2172~2,38K0328~10,38K0365~10,9696466~2,62W7913~2&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=1103036~3,9473378~20,1144803,1106100,1282534,1564884,1662646~2,9339060~10,9339434~10,9696466~2,1219453~2&amp;nsku=52W9087~3,98K4965~20,25M4591,CD4027BE,25M4047,60K6190,29X2172~2,38K0328~10,38K0365~10,9696466~2,62W7913~2&amp;COM=noscript" target="_blank">Buy Kit</a></span><span class="e14-init-hidden" id="addProduct-NlvBKIjX-unlinked">Buy Kit</span></span></th></tr></thead><tbody><tr><td style="border:1px solid black;border:1px solid #000000;padding:2px;"><p style="margin:0;"><strong>555 Timer IC DIP8</strong></p></td><td style="border:1px solid black;border:1px solid #000000;padding:2px;">3</td><td style="border:1px solid black;border:1px solid #000000;padding:2px;"><span><span class="e14-init-shown e14-product-link-buynow" id="addProduct-Y45deklM-linked" style="white-space:nowrap;"><a class="jive-link-product-addtolist" href="https://www.element14.com/community/view-product.jspa?fsku=1103036~3&amp;nsku=52W9087~3&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=1103036~3&amp;nsku=52W9087~3&amp;COM=noscript" target="_blank">Buy Now</a></span><span class="e14-init-hidden" id="addProduct-Y45deklM-unlinked">Buy Now</span></span></td></tr><tr><td style="border:1px solid black;border:1px solid #000000;padding:2px;"><p style="margin:0;"><strong>SPDT switch 5A Panelmount</strong></p></td><td style="border:1px solid black;border:1px solid #000000;padding:2px;">20</td><td style="border:1px solid black;border:1px solid #000000;padding:2px;"><span><span class="e14-init-shown e14-product-link-buynow" id="addProduct-1L51qBMO-linked" style="white-space:nowrap;"><a class="jive-link-product-addtolist" href="https://www.element14.com/community/view-product.jspa?fsku=9473378~20&amp;nsku=98K4965~20&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=9473378~20&amp;nsku=98K4965~20&amp;COM=noscript" target="_blank">Buy Now</a></span><span class="e14-init-hidden" id="addProduct-1L51qBMO-unlinked">Buy Now</span></span></td></tr><tr><td style="border:1px solid black;border:1px solid #000000;padding:2px;"><strong>10 Turn Potentiometer 5kOhm</strong></td><td style="border:1px solid black;border:1px solid #000000;padding:2px;">1</td><td style="border:1px solid black;border:1px solid #000000;padding:2px;"><span><span class="e14-init-shown e14-product-link-buynow" id="addProduct-bafObShv-linked" style="white-space:nowrap;"><a class="jive-link-product-addtolist" href="https://www.element14.com/community/view-product.jspa?fsku=1144803&amp;nsku=25M4591&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=1144803&amp;nsku=25M4591&amp;COM=noscript" target="_blank">Buy Now</a></span><span class="e14-init-hidden" id="addProduct-bafObShv-unlinked">Buy Now</span></span></td></tr><tr><td style="border:1px solid black;border:1px solid #000000;padding:2px;"><p style="margin:0;"><strong>Decade counter/Divider IC</strong></p></td><td style="border:1px solid black;border:1px solid #000000;padding:2px;">1</td><td style="border:1px solid black;border:1px solid #000000;padding:2px;"><span><span class="e14-init-shown e14-product-link-buynow" id="addProduct-tnJG8Hx9-linked" style="white-space:nowrap;"><a class="jive-link-product-addtolist" href="https://www.element14.com/community/view-product.jspa?fsku=1106100&amp;nsku=CD4027BE&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=1106100&amp;nsku=CD4027BE&amp;COM=noscript" target="_blank">Buy Now</a></span><span class="e14-init-hidden" id="addProduct-tnJG8Hx9-unlinked">Buy Now</span></span></td></tr><tr><td style="border:1px solid black;border:1px solid #000000;padding:2px;"><p style="margin:0;"><strong>Knob Round 6mm / 50mmm with position marker</strong></p></td><td style="border:1px solid black;border:1px solid #000000;padding:2px;">1</td><td style="border:1px solid black;border:1px solid #000000;padding:2px;"><span><span class="e14-init-shown e14-product-link-buynow" id="addProduct-hGVXkZ8W-linked" style="white-space:nowrap;"><a class="jive-link-product-addtolist" href="https://www.element14.com/community/view-product.jspa?fsku=1282534&amp;nsku=25M4047&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=1282534&amp;nsku=25M4047&amp;COM=noscript" target="_blank">Buy Now</a></span><span class="e14-init-hidden" id="addProduct-hGVXkZ8W-unlinked">Buy Now</span></span></td></tr><tr><td style="border:1px solid black;border:1px solid #000000;padding:2px;"><p style="margin:0;"><strong>Quad Amplifier IC</strong></p></td><td style="border:1px solid black;border:1px solid #000000;padding:2px;">1</td><td style="border:1px solid black;border:1px solid #000000;padding:2px;"><span><span class="e14-init-shown e14-product-link-buynow" id="addProduct-HBKjyNy2-linked" style="white-space:nowrap;"><a class="jive-link-product-addtolist" href="https://www.element14.com/community/view-product.jspa?fsku=1564884&amp;nsku=60K6190&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=1564884&amp;nsku=60K6190&amp;COM=noscript" target="_blank">Buy Now</a></span><span class="e14-init-hidden" id="addProduct-HBKjyNy2-unlinked">Buy Now</span></span></td></tr><tr><td style="border:1px solid black;border:1px solid #000000;padding:2px;"><p style="margin:0;"><strong>Ansmann NIMH AA 1,3Ah 4-Pack</strong></p></td><td style="border:1px solid black;border:1px solid #000000;padding:2px;">2</td><td style="border:1px solid black;border:1px solid #000000;padding:2px;"><span><span class="e14-init-shown e14-product-link-buynow" id="addProduct-HZvkKh6Y-linked" style="white-space:nowrap;"><a class="jive-link-product-addtolist" href="https://www.element14.com/community/view-product.jspa?fsku=1662646~2&amp;nsku=29X2172~2&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=1662646~2&amp;nsku=29X2172~2&amp;COM=noscript" target="_blank">Buy Now</a></span><span class="e14-init-hidden" id="addProduct-HZvkKh6Y-unlinked">Buy Now</span></span></td></tr><tr><td style="border:1px solid black;border:1px solid #000000;padding:2px;"><p style="margin:0;"><strong>Resistor 10kOhm</strong></p></td><td style="border:1px solid black;border:1px solid #000000;padding:2px;">10</td><td style="border:1px solid black;border:1px solid #000000;padding:2px;"><span><span class="e14-init-shown e14-product-link-buynow" id="addProduct-BipC8R6Y-linked" style="white-space:nowrap;"><a class="jive-link-product-addtolist" href="https://www.element14.com/community/view-product.jspa?fsku=9339060~10&amp;nsku=38K0328~10&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=9339060~10&amp;nsku=38K0328~10&amp;COM=noscript" target="_blank">Buy Now</a></span><span class="e14-init-hidden" id="addProduct-BipC8R6Y-unlinked">Buy Now</span></span></td></tr><tr><td style="border:1px solid black;border:1px solid #000000;padding:2px;"><p style="margin:0;"><strong>Resistor 33kOhm</strong></p></td><td style="border:1px solid black;border:1px solid #000000;padding:2px;">10</td><td style="border:1px solid black;border:1px solid #000000;padding:2px;"><span><span class="e14-init-shown e14-product-link-buynow" id="addProduct-ByMsNonw-linked" style="white-space:nowrap;"><a class="jive-link-product-addtolist" href="https://www.element14.com/community/view-product.jspa?fsku=9339434~10&amp;nsku=38K0365~10&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=9339434~10&amp;nsku=38K0365~10&amp;COM=noscript" target="_blank">Buy Now</a></span><span class="e14-init-hidden" id="addProduct-ByMsNonw-unlinked">Buy Now</span></span></td></tr><tr><td style="border:1px solid black;border:1px solid #000000;padding:2px;"><p style="margin:0;"><strong>Electrolytic Capacitor 10uF</strong></p></td><td style="border:1px solid black;border:1px solid #000000;padding:2px;">2</td><td style="border:1px solid black;border:1px solid #000000;padding:2px;"><span><span class="e14-init-shown e14-product-link-buynow" id="addProduct-uOr7BxEk-linked" style="white-space:nowrap;"><a class="jive-link-product-addtolist" href="https://www.element14.com/community/view-product.jspa?fsku=9696466~2&amp;nsku=62W7585~2&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=9696466~2&amp;nsku=62W7585~2&amp;COM=noscript" target="_blank">Buy Now</a></span><span class="e14-init-hidden" id="addProduct-uOr7BxEk-unlinked">Buy Now</span></span></td></tr><tr><td style="border:1px solid black;border:1px solid #000000;padding:2px;"><p style="margin:0;"><strong>Electrolytic Capacitor 100uF</strong></p></td><td style="border:1px solid black;border:1px solid #000000;padding:2px;">2</td><td style="border:1px solid black;border:1px solid #000000;padding:2px;"><span><span class="e14-init-shown e14-product-link-buynow" id="addProduct-Z9aMZ0gD-linked" style="white-space:nowrap;"><a class="jive-link-product-addtolist" href="https://www.element14.com/community/view-product.jspa?fsku=1219453~2&amp;nsku=62W7913~2&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=1219453~2&amp;nsku=62W7913~2&amp;COM=noscript" target="_blank">Buy Now</a></span><span class="e14-init-hidden" id="addProduct-Z9aMZ0gD-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><th style="border:1px solid black;border:1px solid #000000;padding:2px;color:#ffffff;background-color:#6690bc;text-align:left;" valign="middle"><strong>Quantity<br /></strong></th></tr></thead><tbody><tr><td style="border:1px solid black;border:1px solid #000000;padding:2px;"><p style="margin:0;"><strong>Fetal Detector from the Fleamarket, or get a new one for cheap on the internet.</strong></p></td><td style="border:1px solid black;border:1px solid #000000;padding:2px;">1</td></tr><tr><td style="border:1px solid black;border:1px solid #000000;padding:2px;"><p style="margin:0;"><strong>Order a wild selection of Caps and resistors to experiment around until you get the desired sound.</strong></p></td><td style="border:1px solid black;border:1px solid #000000;padding:2px;">1</td></tr><tr><td style="border:1px solid black;border:1px solid #000000;padding:2px;"><p style="margin:0;"><strong>Differently colored wire to keep track of all the connections.</strong></p></td><td style="border:1px solid black;border:1px solid #000000;padding:2px;">1</td></tr></tbody></table><p style="margin:0;padding:0px;">&nbsp;</p><p style="margin:0;"><br /><br /></p><h2></h2><p style="margin:0;"><br /><br /></p><div style="clear:both;"></div> <div style="font-size: 90%;">Tags: capacitor, potentiometer, arduino uno, e14presents_mayermakes, 555_timer, fetal detector music synthesizer, decade counter, resistor, friday_release, mayermakes, music synthesizer</div>