CPU
You can use any ESP32 mini or ESP8266 mini with the correct pinout, but we highly recommend the ESP32-C3.
ESP32-C3 (recommended) | ESP32 | ESP32-S2 | ESP8266 | |
---|---|---|---|---|
USB-Type | Type-C | micro-USB | Type-C | micro-USB or Type-C |
Bluetooth | ✓ | ✓ | ✓ | ✗ |
Bluetooth LE | ✓ | ✓ | ? | ✗ |
Case | ✓ | ✗(not yet) | ✓ | ✓ |
external power¹ | ✓ | ✓ | ✓ | ✗ |
LED | WS2812B RGB | White | White | White |
fits perfectly | ✓ | stands over | ✓ | ✓¹ |
Where to buy? | AliExpress | Amazon DE³, AliExpress | AliExpress | Amazon DE³, AliExpress |
¹ External power via the terminal connectors are not possible if the USB-connector is at the bottom (ESP8266).