Ev3 mindstorm going back and forward in a straight line
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I want to write a code for my Ev3 robot with two motors. I want it to be able to go a certain distance, in this case forward until the motors have turned a maximum of 2500 degress for four seconds. Then I want the robot to go back the same distance. But the problem is that sometimes only one motor spins while the other does nothing and sometimes a motor will continue to spin long after it has returned to its original position. I wonder if there is any way I can improve the code I have. I have tried it on several different Ev3 equitment so it is most likely not a hardware problem. Any help would be appreciated :)
b = Brick('ioType','usb'); b.outputStepSpeed(0,Device.MotorA,60,0,2500,0,Device.Brake); b.outputStepSpeed(0,Device.MotorD,60,0,2500,0,Device.Brake); pause(4) b.outputStop(0,Device.MotorA,Device.Brake); b.outputStop(0,Device.MotorD,Device.Brake); tacho = b.outputGetCount(0,Device.MotorA); disp(['> Tachometer: ' num2str(tacho)]); b.outputClrCount(0,Device.MotorA); b.outputClrCount(0,Device.MotorD); pause(0) b.outputStepSpeed(0,Device.MotorA,-60,0,tacho,0,Device.Brake); b.outputStepSpeed(0,Device.MotorD,-60,0,tacho,0,Device.Brake); pause(4) b.outputStop(0,Device.MotorA,Device.Brake); b.outputStop(0,Device.MotorD,Device.Brake); tacho = b.outputGetCount(0,Device.MotorA); disp(['> Tachometer: ' num2str(tacho)]); b.outputClrCount(0,Device.MotorA); b.outputClrCount(0,Device.MotorD); clear
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