Blog - All Comments

RE: Rick and Morty motion display

three-phase — Wed, 06 Nov 2019 21:03:55 GMT

This looks great fun - good luck with the project.

Kind regards.

RE: Rick and Morty motion display

fmilburn — Wed, 06 Nov 2019 16:40:25 GMT

You might also have a look at servo motors. They are inexpensive, easy to use, and don’t require a driver board. They can be purchased as continuous rotation or conventional servo. Conventional servos may be advantageous if you need to reposition to the same place and don’t require more than 180 degrees or so of rotation.

RE: Build a sub-£5 ambient backlight for a TV / PC Monitor

DAB — Mon, 25 Feb 2019 19:42:52 GMT

Nice project.

DAB

RE: Build a sub-£5 ambient backlight for a TV / PC Monitor

genebren — Mon, 25 Feb 2019 17:38:47 GMT

A very nice DIY project. ice that you were sharing the details with your daughter. Well done!

Gene

RE: Build a sub-£5 ambient backlight for a TV / PC Monitor

shabaz — Mon, 25 Feb 2019 14:37:19 GMT

Hi Matt,

Great project! Very cool use of the analog control to adjust brightness digitally by controlling number of lit LEDs : )

I always love seeing the control solutions that people dream up.. I'm addicted to such minimal but elegant and intuitive user-interfaces!

it's an interesting challenge to hide underlying complexity and make it so easy to use.

RE: Working with motors: servo motors

poojashree — Sun, 04 Feb 2018 05:36:30 GMT

Thanks for this above information. During my inplant training i have learnt about arduino and i got interest to make my project on the topic school vehicle collisions avoidance system on that i need the servo motor as my output devices.finally i got info in this blog to complete my project.

RE: [Tutorial] Saving and sending Arduino logs via email and Twitter by using Python script

gagan3120 — Tue, 21 Nov 2017 13:36:50 GMT

Can you tell me what type of audrino is used

RE: Measuring magnetic fields with Arduino

sl35 — Thu, 22 Jun 2017 09:19:52 GMT

Hello,

Your application interests me but I do not understand how you made the connection between Arduino and Geogebra. If I vary A0 from 0 to 5V and I send serial port information :

Arduino soft :

#define PinAna 0 //

int val;

void setup() {

Serial.begin(9600);

}

void loop () {

val = analogRead(PinAna);

Serial.println(val);

delay(250);

}

On geogebra I want to move a point A (0, val) vertically with val the value read on the serial port. What script should you write and where should you write it?

Thank you

RE: Getting to Know Arduino : Part 3 : Taking your Temperature

roshanjha — Thu, 08 Dec 2016 05:15:15 GMT

Hi Everyone,

I want to send the data of the sensor through Arduino to directly into the database postgresql, So i want to know how can i do this ,Is Arduino support the Postgresql, Plz direct me ,how can i make this possible.Arduino[mention:43e501a068d644b4be543ab742129953:e9ed411860ed4f2ba0265705b8793d05][mention:e3a2afc4efd7439c948c8c808023b86a:e9ed411860ed4f2ba0265705b8793d05][mention:5a681322632141bfa16f956fc4cc58e9:e9ed411860ed4f2ba0265705b8793d05]zaras123 harn

RE: Getting to Know Arduino : Part 1 : Hello, World!

teprojects1 — Thu, 24 Nov 2016 13:09:03 GMT

Hey dear,

thanks for this tutorial which you have uploaded in the series, it's really help out me because now I am able to understand how to work with arduino before this I don't every understand how can we operate this, thanks once again.

RE: Working with motors: servo motors

arduinogeek — Mon, 03 Oct 2016 11:39:37 GMT

Good work! More information I read only on ngin.pro site

RE: Jeremy Blum Arduino Tutorials

Former Member — Mon, 18 Jul 2016 04:36:41 GMT

Hi Jeremy,

Good Tutorial. I am working for Lumex Inc. which is one of the suppliers of Element14. We got pretty cool new products which are 2.42 inches 128X64 UART interface OLED and UART interface LED module with 96X8 , 192X16, 384X8 and 96X32 sizes. Since it's using UART and controls by simple instructions, it can be used for Arduino, Mbed, , MCU, Rasperry Pi, or PC. Those new products are going to launch by Q3 this year. I am wondering if you are interested in receiving those products to make some projects for your own and create the tutorial for others. Please let me know.

I have attached two pictures of the prototype for your reference [View:/resized-image/__size/620x827/__key/commentfiles/f7d226abd59f475c9d224a79e3f0ec07-fc5eb960-c5fa-4c30-b513-a614c619955c/1321.contentimage_5F00_184253.jpg:620:827][View:/resized-image/__size/620x465/__key/commentfiles/f7d226abd59f475c9d224a79e3f0ec07-fc5eb960-c5fa-4c30-b513-a614c619955c/8267.contentimage_5F00_184254.jpg:620:465]

RE: Measuring magnetic fields with Arduino

Former Member — Thu, 07 Jul 2016 09:30:09 GMT

Thanks for a nice clear write-up.

In your photo, it looks like you are powering the PmodCMPS with 5v, but the datasheet states maximum 3.6v.

Can you confirm that you are feeding it 5v ?

I did the same thing, but am getting no I2C response and suspect I fried my sensor.

RE: A non blocking delay

celem — Tue, 28 Jun 2016 01:14:04 GMT

I altered Andy Clark's solution to better suit my needs. While I kept the Timeout member, I am not using it. I modified Delay() so that it stands alone and only executes the code after the timer expires. Here is what I am using. Note, all three files are concatenated together for this comment.

[embed:dc8ab71f-3b98-42d9-b0f6-e21e02a0f8e2:3ef06e6b-9b7d-4651-b12d-db8be7f5e991:type=c_cpp&text=%2F**%0A+*+nonblockdelay2.ino%0A+*+%0A+*+example+%22blink%22+program%0A+*%0A+*%2F%0A%0A%0A%23include+%22Delay.h%22%0A%0A%0Aint+led+%3D+13%3B%0Aint+ledstate+%3D+HIGH%3B%0Astatic+NonBlockDelay+d%3B%0A%0A%0Avoid+setup%28%29%0A%7B++++++++++++++++%0A++pinMode%28led%2C+OUTPUT%29%3B%0A%7D%0A%0A%0A%2F%2F+the+loop+routine+runs+over+and+over+again+forever%3A%0Avoid+loop%28%29%0A%7B%0A++if%28d.Delay%281000%29%29%0A++%7B%0A++++ledstate+%3D+%28ledstate+%3D%3D+LOW+%3F+HIGH+%3A+LOW%29%3B+%2F%2Ftoggle+state%0A++++digitalWrite%28led%2C+ledstate%29%3B%0A++%7D%0A++%2F%2FCode+here+runs+frequently%0A%7D%0A%0A%0A%2F%2F---------------------%0A%2F**%0A+*+Delay.cpp%0A+*%0A+*%2F%0A%0A%23include+%22Delay.h%22%0A%0A%0A%2F%2F+Set+iTimeout+to+current+millis+plus+milliseconds+to+wait+for%0A%2F**%0A+*+Called+with+milliseconds+to+delay.%0A+*+Return+true+if+timer+expired%0A+*+%0A+*%2F%0Abool+NonBlockDelay%3A%3ADelay+%28unsigned+long+t%29%0A%7B%0A++if%28TimingActive%29%0A++%7B%0A++++if%28%28millis%28%29+%3EiTimeout%29%29%7B%0A++++++TimingActive+%3D+0%3B%0A++++++return%281%29%3B%0A++++%7D%0A++++return%280%29%3B%0A++%7D%0A++iTimeout+%3D+millis%28%29+%2B+t%3B%0A++TimingActive+%3D+1%3B%0A++return%280%29%3B%0A%7D%3B%0A%0A%0A%0A%0A%2F%2F+returns+true+if+timer+expired%0Abool+NonBlockDelay%3A%3ATimeout+%28void%29%0A%7B%0A++if%28TimingActive%29%7B%0A++++if%28%28millis%28%29+%3EiTimeout%29%29%7B%0A++++++TimingActive+%3D+0%3B%0A++++++iTimeout+%3D+0%3B%0A++++++return%281%29%3B%0A++++%7D%0A++%7D%0A++return%28false%29%3B%0A%7D%0A%0A%0A%2F%2F+Returns+the+current+timeout+value+in+milliseconds%0Aunsigned+long+NonBlockDelay%3A%3ATime%28void%29%0A+%7B%0A+++return+iTimeout%3B%0A+%7D%0A%0A%0A%2F%2F------------------------------%0A%2F**%0A+*+Delay.h%0A+*%0A+*%2F%0A%0A%23if+defined%28ARDUINO%29+%26%26+ARDUINO+%3E%3D+100%0A%23include+%3CArduino.h%3E%0A%23else%0A%23include+%3CWProgram.h%3E%0A%23endif%0Aclass+NonBlockDelay+%7B%0A++++unsigned+long+iTimeout%3B%0A++++bool+TimingActive+%3D+0%3B%0A++public%3A%0A++++bool+Delay+%28unsigned+long%29%3B%0A++++bool+Timeout+%28void%29%3B%0A++++unsigned+long+Time%28void%29%3B%0A%7D%3B%0A%2F%2F-------------------------]

RE: A non blocking delay

celem — Mon, 27 Jun 2016 20:34:11 GMT

Andy Clark's solution is concise and makes for readable source - but behaves as a do {..code..}while loop where the 'code' will execute one and the delay only applies to subsequent executions of Timeout(). Using the example code:

[embed:dc8ab71f-3b98-42d9-b0f6-e21e02a0f8e2:3ef06e6b-9b7d-4651-b12d-db8be7f5e991:type=c_cpp&text=void+loop%28%29+%7B%0A++if+%28d.Timeout%28%29%29+%7B++++%2F%2F+always+true+on+first+call%0A++++digitalWrite%28led%2C+ledstate%29%3B%0A++++ledstate+%3D+ledstate+%3D%3D+LOW+%3F+HIGH+%3A+LOW%3B+%2F%2Ftoggle+state%0A++++d.Delay%281000%29%3B%0A++%7D]

d.Timeout returns (iTimeout < millis()). On the first invocation iTimeout is indeterminate but, unless millis() has turned over, probably less than millis() returns, so 'true' will be returned. Once d.Delay is called iTimeout will be set to millis() + 1000 so subsequent calls to d.Timeout will return 'false' until millis() increments above iTimeout.

This is useful where a do {..code..}while loop is called for, such as blinking the LED but not useful in a delay before executing situation, which is more like a blocking delay() would do. I haven't figured out how to do that yet - meanwhile Andy Clark's solution works for some situations.