Usb Connector; Led Matrix - Arduino UNO R4 WiFi Product Reference Manual

7 USB Connector

The UNO R4 WiFi has one USB-C® port, used to power and program your board as well as sending & receiving
serial communication.
Note: The board should not be powered with more than 5 V via the USB-C® port.

8 LED Matrix

The UNO R4 WiFi features a 12x8 matrix of red LEDs (U_LEDMATRIX), connected using the technique known as
charlieplexing.
The following pins on the RA4M1 MCU are used for the matrix:
P003
P004
P011
P012
P013
P015
P204
P205
P206
P212
P213
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LED matrix schematics.
Arduino® UNO R4 WiFi
Arduino® UNO R4 WiFi
Modified: 26/06/2023