Good morning everybody,
I would like to expose my problem connecting stepper motors and a L298N bridge. I'm trying to connect my Arduino Yún to a unipolar stepper motor (I've tried both unipolar as bipolar and bipolar versions) through a L298N bridge like this:
I'm following this schematics
And using a 12V / 8.5A power supply connected to the bridge (with a 4700uF capacitor) and my computer to power the Arduino. Both grounds, Arduino and the bridge are connected. I'm using basic stepper code from Arduino library.
The result: it works for 10-15 seconds aprox, then starts failing, losing steps, stops turning and doing weird noises. Obviusly, I don't let it doing it for more than some seconds. As you can expect, the bridge gets hot as hell (untouchable)
My bet is with the 8.5A current. I had tried previously with a 12V / 5.5A one and same happened.
I'w really appreciate some guidance here, I'm a total noob and this is my very first Arduino project.
Thanks in advance