Building the BERT RC Controller — ESP32 Transmitter Deep Dive
When I introduced the BERT RC Controller, I described it as two brains in one handheld — an ESP32-based radio transmitter fused with a RubyFPV HD video ground station. This post is the deep dive into the transmitter brain: every part, every wiring decision, the power architecture, and the firmware design that ties it all together. If you’ve ever wondered what it actually takes to build your own ELRS handset from scratch, this is the whole picture. ...