GoKawiilDeveloper releases open-source Arduino library for AMT630A OSD chip in $35 backup cameras
A developer reverse-engineered the AMT630A chip used in cheap composite-video LCD monitor boards and published an Arduino/ESP32 library, now at version 0.7.0, that controls its on-screen display hardware. The library exposes the chip's five OSD windows for text, custom glyphs, bitmaps, palette animation, scaling and blending, alongside a Python image converter and optional automation to reach a hidden factory menu on one tested monitor's firmware.