0715-AAX
Firmwaregithub.com
0715-AAX is the developer kit for the Behringer AQ64L grid controller, providing example firmware, a digital-board schematic and USB upgrade tools for building custom controller behavior. The example scans the pad and function-key matrix, drives the RGB LEDs, sends pad notes and function-key MIDI CC messages, and responds to host MIDI messages with pad lighting. The project includes Keil and GCC/CMake build configurations and tools to package and upload custom firmware through the factory bootloader over USB. Its separate build, architecture and upgrade guides document the development workflow. The example firmware and tools are open source; the factory firmware and bootloader source are not included.