Originally developed to test an aircraft actuator, this project uses the Holt Hi3593 ARINC429 driver IC connected to an Arduino Uno shield. Supporting 1 transmitt channel and 2 receive channels, its easy to use. Arduino software has also been written and tested (attached). Transmitt commands and receive events are sent and received through the USB serial port on the Arduino Uno. Transmit in hexidecimal characters and receive in hex, a "\n" (newline) character is used as a string terminator. Please see attached PDF for more detailed information. The Holt IC datasheet can be found at www.holtic.com