I’ve designed a few boards with ESP32s on them. Sometimes as a secondary system to provide wifi/ble, sometimes as the main microcontroller. One example was a co

I’ve designed a few boards with ESP32s on them. Sometimes as a secondary system to provide wifi/ble, sometimes as the main microcontroller. One example was a commercial display using these P4 panels to display an 8-bit themed animation, and another one where a bunch of old small green CRTs were wired together to display the same “command prompt”-style text displaying the opening hours and other information. STM32 would be the other big family of microcontrollers. And if you can get your hands on them, and need the vastly more powerful capabilities, the i.MX series can be interesting.