Well I connected my motors to a Cytron urc10, and electric noise start. I have 2 of them and I tested them with different motors. I have same result. I took the new card ,connected 12v and 1 motor. Then the motor start spinning forward and backward, but when stop you can hear that big electrical noise, like Hydro quebec powerline.
if anyone can help.
thank you
Hello @huguensba,
The problem may be due to a low PWM frequency. Please check the following links:
Thanks for all infos verry interresting. I have 2 Cytron urc10 so I’ve decided to test each motor input. My big surprise it the default sketch in the Cytron did not make the motor make any noise, but using the other card where the Sumo sketch example from Cytron is make the motor screem.
The issue is the motor keep receiving signal backward and forward so fast to make it in a stop mode like a Brake that’s what i beleive is causing this issue. So my big question is…is there is a way to completely stop the signals (off) to the motors and still having the sketch running.
Hello @huguensba,
I’m sorry I couldn’t understand the issue very well. I’m assuming you used these sketches:
I can see that they use different libraries which is a bit inconvenient when comparing them but if the problem is related to the motors changing direction too fast maybe you can try increasing the delay values.
is there is a way to completely stop the signals (off) to the motors and still having the sketch running.
I’m not quite sure what you mean by this. The purpose of this sketch is to make the robot turn around in search of an opponent so it wouldn’t make sense to keep the motors off.
However, I invite you to read this tutorial where each part of the code is explained. Maybe it can help you to understand more how the sketch works and so you can modify it.
