ATMegaZero ESP32- S2, showing optional color-coded 40-pin header (top) The ATMegaZero ESP32-S2 is currently being funded with a campaign on GroupGets, and it’s a microcontroller board modeled ...

Inside the mutantC_v4, showing off the ESP32-S2 Probably the most notable improvement ... connector on the bottom of the handheld that has pins for I2C, UART, and 3.3 V. In the video below ...