Exploring

Control up to five auxiliary accessories in the vehicle (up to 15A each, or 45A total) using standard, replaceable Bosch-style relays.  Control via remote control interface (Linux) over RS485 or via standard switches.  Atmega328p processor and custom bootloader makes it possible to program via Arduino IDE over RS-485 bus.  Uses the MoCoBus libraries I developed for Dynamic Perception for rapid protocol development.  GUI written in Qt.  Will release all files and code open-source when done.

Additional Features:

• Battery Voltage Monitoring
• Self-Regulating Temperature with DC fan control
• Optical isolation between relays and CPU
• Fail-safe aux control with mechanical switches
• All relays in off-state during power-up