LILYGO T-Embed SI4732 is an ESP32-S3 development board with an AM/FM radio, a TFT display, a rotary encoder, a built-in ...

There’s a lot to like about this little remote, which is based upon a LilyGo TTGO ESP32 board with on-board display. The circuitry is basically that and a rotary encoder plus a tiny LiPo battery.

Two rotary optical encoder subtypes exist: Incremental and absolute. Incremental encoders are named for their output, consisting of the two square waves, each corresponding to an increment of ...