Hi,
try the following:
disconnect the arduino from the leveler. Disconnect the motor controller from the arduino.
Connect the pi TX with the arduino rx and the ground connection and feed the arduino and the pi with the same +5V (you can feed the pi with +5V at the GPIOs 2and4, but really and only +5V).
What´s then about the rx-led from the arduino?
Regards
Andreas
try the following:
disconnect the arduino from the leveler. Disconnect the motor controller from the arduino.
Connect the pi TX with the arduino rx and the ground connection and feed the arduino and the pi with the same +5V (you can feed the pi with +5V at the GPIOs 2and4, but really and only +5V).
What´s then about the rx-led from the arduino?
Regards
Andreas