Arduino UNO R4 Tutorial - Matrix LED

2，Compilation and Testing of LED Example

2.1】 When using the Arduino UNO R4 WIFI board for the first time and there is no serial port displayed upon inserting the USB cable,

Please wait for a while as the computer will automatically install the Arduino UNO R4 WIFI driver.

2.2】 After the driver installation is complete, click on COM Port.

2.3】 Test the display effect of the matrix LED:Click on the built-in matrix LED example provided by the official Arduino IDE.

TAG： linux board Raspberry Pi 1.3inch ESP32-S3 LCD Driver Board RGB/SPI N8R8 For 2.1/2.8/4inch Captive TouchScreen Display Round Secondary Screen UART To Ethernet STM32 programmer TTL To CAN Mini ESP32-S3R2 Raspberry Pi Pico 10.1inch DVI LCD JETSON-IO-BASE-A user Guid ESP32 1.54inch OLED ESP32-C3FN4 RP2040 LoRa-HF ESP32 ST7789 tutorial Jetson Nano Sipeed Lichee Tang Nano 4K FPGA MINI Development Board W1NSR-LV4C GOAI Gowin ESP32 Mini TV Core3566004000 UART TTL To RS485 C Built-In Protection Circuits Milk-V Duo S User Guide Total

TAG： JLINK OB Raspberry Pi UPS HAT E 21700 Li battery (NOT included) 5V 6A Uninterruptible Power Supply ADXL354CZ EVAL BOARD Raspberry Pi Acc 2.13Inch E-Ink UNO-R4 1.69inch LCD TouchScreen Display 240×280 ST7789 Arduino Raspberry Pi ESP32S3 Pico STM32 Raspberry Pi5 PCIe Gigabit ETH USB3.2 HAT+ Raspberry Pi 5 inch LCD 720x1280 Capacitive TouchScreen Display 0.49inch OLED Screen Display 64×32 SSD1315 Arduino Raspberry Pi ESP32 Pico STM32 800x480 SpotPear ESP32 C3 Zero 3.4inch Round LCD HDMI Capacitive touchscreen display Raspberry Pi Jetson Nano mini PC 800x800 Arduino Atmega328P ESP32-S3R2 SpeedyBee F405 V3 FC ESC Flight Controller DJI FPV Drone Seeed Studio XIAO ESP32C6 Wi-Fi and Bluetooth5.0 SeeedStudio Arduino SuperMini Tiny MLX90641 High Performance AI at the Edge