Hello All,
I recently bought two Cytron 13A, 5-30v single DC motor controllers for my robot project, however I’ve been having difficulty with them right off the back. I hooked up a 3s LiPo battery to green “power” terminals for for power, and also soldered on the “GND”, “PWM”, and “DIR” lines to an Arduino mega, but left the mega off for the self test. I only wired in the signal lines because it was convenient and I didn’t foresee any issues at the time. When I power up the motor controllers, they come on with the “green” power light, so I know I have power and presumably working boards. However, when I push and hold the “A” or “B” self-test buttons, my motors do not rotate, they simply buzz and make a tiny motion. The red “power” light on the board comes on, indicating the board is giving the motors power, which is encouraging. Motor wise, I’m using two 12v geared brushed DC motors from Pololu and I have each one wired up to the black “motor” terminals, one motor for each board. I’m honestly pretty stumped, it seems odd to me that TWO motor controllers would just go bad at the same time, I feel it’s more likely I’m overlooking something obvious or didn’t do something properly. Perhaps the self test function can’t turn a 30:1 geared motor?
I’d appreciate any feedback, and if anyone wants any more details I’d be happy to provide it! Thanks!