I was reading the SCH of the controeller board of 2.8 and I came up with a samll problem
The SCH indicates that the ESC_3A to ESC_3C is connected to J16A to J16C, but I couldn’t find which arduino pin that the J16A to C represent. Or are they directly connected to the brushless motor.
Besides, there may be a pwm wire of the esc that is connected to arduino so that I can adjust the rotate speed by using the code. So which pin of the arduino that the PWM sire of the esc is connected to.
I have already managed to make the motor rotate by using my own code but I am still facing a very wired problem:
Situation 1: I unplug the pwm wire of the esc from the controller board with other wires still attached and connect the pwm wire to my own arduino UNO. I then burn the code that is for the PWM signal to the UNO and power the ROV on. It turns out that the motor successfully rotate.
Situation 2: I didn’t unplug anything from the controllerboard, I just burn the code that was in the UNO to the controller board , I powered the ROV again but the motor didn’t rotate. And i don’t know why. I assume that my code has erase some original necessary code for the rotation
To better illustrate, a handdrawing is shown below:
Any one can give me some advice