This document is aimed at the Arduino developers, radio experimenters, hobbyists and anyone interested in building a receiver based on the Si473X IC family from Silicon Labs. This project is about an ...
Setting it up is really easy.
All PWM/EN pins are output-capable GPIOs and avoid the strapping pins 0, 2, 12, 15 (except GPIO 2 used as LED only, which is fine — it's only an issue if held LOW at boot, and our default state is OFF ...