The linked repository doesn’t tell us which of the ESP32 variants it works with ... seen sniffing of HCI commands to reverse engineer a speaker’s communications.

Of course, the core Internet streaming code would be useful with any ESP32, but the display makes ... power supply, and speaker option to make a tiny and portable unit. With a 3D printer, it ...

Some of the ESP32 Rainbow’s key features include a 40-key touch keyboard, a 320 x 280 pixel, 16-bit color TT display, a 2 watt, 8 ohm speakers, a battery connector, an SD card reader ...