Uno R4 WiFi
arduino_uno_r4_wifi
Weird Three Cores.
Hybrid board with a fancy LED matrix and native 5V tolerance.
Good to know
- The headers are 5V logic, BUT the Qwiic connector is 3.3V I2C – do not mix them up!
- Wi-Fi comes from the onboard ESP32-S3 module; the main MCU (RA4M1) runs at 48 MHz.
- There is a real DAC on A0, and you can drive the LED matrix.
- VIN accepts 6–24V.
Pinout
Tap to enlarge