Hi,
I have been working out how to make a left-hand wall following robot. The program works exactly as it should save for one curious glitch that has me baffled. I click upload to Arduino in mBlock and get the confirmation “upload finished”. While the robot is still connected it runs the following Arduino code
motor_9.run(-100);
motor_10.run(-100);
_delay(0.25);
motor_9.run(225);
motor_10.run(-175);
_delay(0.8);