farmbot_os/docs/project/farmbot_firmware.md

FarmBot Firmware OTP App

The farmbot_firmware OTP application is responsible for maintaining a connection to the arduino-firmware.

GCODE encoder/decoder subsystem

The official Farmbot-Arduino-Firmware communicates over UART using a ASCII based protocol based on CNC GCODE. This subsystem is responsible for translating the ASCII data into an intermediate representation that can be transported proto agnostically.

Transport subsystem

This subsystem is responsible for abstracting the details of transporting FarmBot GCODEs to/from the firmware implementation. A transport will take in the intermediate (farmbot specific) representation of a GCODE, and dispatch/handle it in it's own specific manor. This keeps the usage of the overall application uniform with or without a firmware plugged in.

UART subsystem

Responsible for the official communication mechanism with the official arduino hardware.