![]() ![]() I have found that if I use Serial.available() > 0 in the if statement it doesn't read the serial port. To read the serial port I use the following Using python in the pi I can send the references up, my problem is sending them back and it seems to be a problem with using Serial.available in the mega. Once I know I can send the references up and back I'll use the pi for navigation. ![]() Now what I'm trying to do is send the speed and direction references to the pi and just send them back to the mega. I have a transmitter with 2 joysticks connected to a uno, it sends the joystick references to the rover via xbee wi-fi modules. The mega communicates to a raspberry pi via the serial port. I'm working on a rover that eventually will be autonomous, I have a GPS and compass module connected to a Arduino mega, the ESC and servos are controlled by the mega through a PCA9685 servo board.
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