Continuing the discussion from All About Motors, APP and Etc, from Makeblock Team:
If I use run “Avoid Obstacles” mode from mBot App from iOS then the device moves as it should. Motors are working.
But if I try any MeEncoderOnBoard examples from Arduino IDE motors are not working at all.
a) “Me_Auriga_encoder_pid_speed” example loads on the device successfully and runs there but terminal shows zero speed.
b) Same problem with mBlock application. I can run all sensor and indicator functions, but not motors - they are silent.
In both cases I am connecting to the device with USB cable. Could it be the problem?
One more observation: in order to see meaningful output I am changing Serial.begin(115200); to Serial.begin(9600); in those samples - without that COM port communication over USB is not working properly. That shall be mentioned in comments of your samples.
Update: I am able to execute run commands using mBlock application over USB on other PC (Microsoft Surface) this time.