I'm using an external Arduino Uno to read a few analog inputs and communicate with some chips via i2c. I have been able to serial.print that information on the Arduino Uno and the information is coming through correctly. I am trying to get this information to the UDOO board, but have been unsuccessful thus far. I would like to send this data to the UDOO and then send it to Pure Data (over the /dev/ttymxc3 port presumably?). What is the best way to do this?