Arduinos in Space
Arduinos in Space is an Arduino library to interface with Objects in Space. It aims to provide a high level, Arduino-like interface while still being powerful and flexible.
Arduinos in Space is an open source library, that was neither written nor supported by Flat Earth.
Arduinos in Space resources
Going further
Objects in Space can send a lot more data to a serial device. It can also accept commands. This is all supported by Arduinos in Space. The library comes with several example sketches (available in the Arduino IDE under File -> Examples -> Arduinos in Space).
Arduinos in Space API contains a full API reference.