As discussed in class demonstrate serial connectivity between the SBC and the uController. Do NOT use the USB2Serial for this demonstration.
Send data x from the SBC to the uController over the serial port.
When uController receives this packet it will add “ret: ” to the beginning and return it to the SBC.
The SBC will then print out the returned data.
https://github.com/jallendc/ece590_homework/blob/master/serial_comm_pi.py
https://github.com/jallendc/ece590_homework/blob/master/serial_comm_pi.ino