Strictly speaking, a Theremin uses a pair of antennae that act as capacitors in a specific R/C circuit. Looking at [aritrakdebnath2003]’s MIDI THEREMIN, we see it works differently, but it does play ...

Waveshare has recently introduced ESP32-S3-Touch-LCD-3.49, an ESP32-S3-based wide touch display (640×172) development board for HMI and AI voice applications such as handhelds, smart panels, meters, ...