Control a Nexus 7 with the steering wheel controls (SWC) from a 2008 Subaru STi. Receive input from the Subaru SWC and translate the signal to control a Nexus 7 tablet. Intend to control Nexus power on/off (mode), volume up, volume down, previous track, next track and mute.
Author: Mike Berkman (mike@berkman.co)
Device: Sparkfun Pro Micro
Some code/guidance borrowed from Yuri (thanks!):
Sparkfun Pro Micro tutorial found here:
Button values sourced from Android: