Hi, I keep adjusting two motors' PWM ,and trying to make it go straight line but failed. Give them equal PWM value still would drifted in real situation. Should I need to add some module like compass and do PID control or any possible way? Thanks.

How to make two motors have really equal speed?

yangkai March 24, 2016, 2:55pm 6

New reply before I sent the reply , thanks cr0sh, let me read it for a while

Topic		Replies	Views
How to sync motor speed??? Project Guidance	26	25962	May 5, 2021
Why does the robot ride crookedly? Motors, Mechanics, Power and CNC	14	1455	May 6, 2021
Calibrating differential steering to go straight Robotics	5	2369	May 6, 2021
Making a Vehicle Drive Straight Motors, Mechanics, Power and CNC	9	6564	May 6, 2021
DC motor speeds Project Guidance	5	771	May 5, 2021