Comments for Playwithmyled.com

Comment on Stepper motor controller circuit and code by Kevin

Kevin — Wed, 09 May 2012 10:58:39 +0000

Hi @john. Sorry I do not have too much time to code it for you. You maybe can duplicate the motorSpin function and use different pins for the second stepper. It is also tricky to connect the motor if you do not have the specs. I had to try different configuration with mine before it works correctly. Looks like the sync error is a communication problem behind the Arduino and the computer. I home this will help you to go further.

Comment on Stepper motor controller circuit and code by Stepper Motor Sequence | Stepper Motor Datasheet

Stepper Motor Sequence | Stepper Motor Datasheet — Wed, 09 May 2012 05:25:31 +0000

[...] Playwithmyled.com [...]

Comment on Stepper motor controller circuit and code by john

john — Tue, 08 May 2012 11:12:46 +0000

hi , i’m trying to do something similar just that i have to use two bipolar stepper motors but i’m really bad with programming so could you send me via email an adaptation of your code for two bipolar motors , also i must be doing something wrong cause i keep getting this error stk500_getsync(): not in sync: resp=0×00 and i think it’s because i connected the l293d to the arduino uno the wrong way(the motor doesn’t move but gets worm)also i’m using a 5V bipolar stepper motor from a floppy drive

Comment on Stepper motor controller circuit and code by Kevin

Kevin — Wed, 02 May 2012 05:28:15 +0000

First, thank you for giving me the name of this algorithm. I was thinking of this filter for my flower robot project. Actually, I only do an average of the nunchuk position. I was aware of a well tuned way to do this. Now I got a name. I did some research and found a source code of the Kalman filter for the Arduino. I will try to understand it and make it work soon.

Comment on Multitasking/multithreading in C on Arduino by Kevin

Kevin — Wed, 02 May 2012 05:10:30 +0000

You’r right! Fixed. Thanks.

Comment on Multitasking/multithreading in C on Arduino by Roberto

Roberto — Tue, 01 May 2012 14:09:50 +0000

Thank you for the sample.
I have found a little error in xDoActions() :

change row
xActions[xActionsFlags[j]]();

in
xActions[j]();

Comment on Stepper motor controller circuit and code by rashmi

rashmi — Sat, 28 Apr 2012 14:51:10 +0000

what will be change in code if we are using kalman filter algorithm for stepper motor control

Comment on The emergence of a flower robot by Gino

Gino — Fri, 13 Apr 2012 10:44:11 +0000

Very cool man, I like this technology integrate in a flower, the power of the electronics and the man brain!

Comment on The emergence of a flower robot by Serge

Serge — Mon, 16 Jan 2012 02:48:59 +0000

Very cool concept! I like the idea of using a Wii Nunchuk Controller to move the petals like you want, very inspiring stuff!

Comment on Stepper motor controller circuit and code by Kevin

Kevin — Thu, 05 Jan 2012 17:47:21 +0000

The L297 chip can drive two coils. So it can drive two DC motors or one two coils stepper.