https://github.com/witnessmenow/ESP32-Cheap-Yellow-Display?t... . I bought mine for about $12 and it's been quite fun tinkering with it.
Here’s a list of just a few. They’re insanely popular not only because they’re just good to use, but also because they’re one of the cheaper FCC approved modules you can buy, which takes a lot of the pain out of bringing a product to market.
Cabled up an EVSE the other day and the brains of that was a ESP32 chip.
The last image on the page shows various chips in the switch, the top left is an ESP32.
https://github.com/witnessmenow/ESP32-Cheap-Yellow-Display?t... . I bought mine for about $12 and it's been quite fun tinkering with it.