Single-Board Microcontrollers

Arduino Nano
RF-Nano
FeatherS2 Neo
Raspberry Pi Pico
Pimoroni Tiny 2040
Seeeduino Xiao
Nerdonic Exen Mini
TinyPICO V2
Wemos Lolin D1 Mini Pro V2
uChip
ATMegaZero ESP32-S2
Challenger NB RP2040 WIFI

Single-Chip Microcontrollers

ATtiny85
Attiny84a
Atmega1284p