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： wide dynamic range LuckFox Pico UART PC Monitor Screen Sipeed NanoKVM Cube KVM HDMI Remote OS Control Manager Install /Power Control /Remote Desktop Server UART ESP32 1.9 inch LCD Capacitive TouchScreen 1.9inch Display ST7789 170x320 for Arduino /Raspberry Pi /Pico Supports 6V~24V Solar Panel Raspberry Pi Buzzer Raspberry Pi 5 ESP32 Development Board C3 1.28 inch Round Rotary LCD Smart Screen 1.28inch Knob Display 240x240 LVGL for Arduino Jetson 64MP Camera Raspberry Pi 24.5 inch Type C/HDMI 2K Display 24.5inch Screen 2560x1440 Computer PC Phone For Xbox/PS4/Switch Raspberry Pi 5 ESP32-S3 Industrial 8-Channel Controller with WiFi Bluetooth CAN IoT RS485 and RJ45 ETH POE Raspberry Pi 3.7 inch e-Paper link (G) RYBW 416x240 For Arduino / Jetson Nano / STM32 Milk-V Duo RJ45 ESP32-S3FH4R2 Matrix 8x8 RGB-LED-WiFi Bluetooth QST Attitude Gyro Sensor QMI8658C Arduino Python user guide development board Thermal imaging camera Raspberry Pi 5 Official Original AI Kit Hailo8l 13Tops/26Tops PCIe M.2 HAT+ Board For Pi5

TAG： 1.54inch OLED Display Raspberry Pi 5 PCIe to 4-CH PCIe FFC HAT Board Pi5 4 Channels Raspberry Pi Pico 2 RP2350 Core A Development Board 7inch Monitor LCD Arduino 1.54inch OLED 0.96inch RGB OLED Raspberry Pi Pico Camera 1.5inch Display Raspberry Pi Pico 2 RP2350 LCD 0.96 inch Displayscreen RP2350A Raspberry Pi Compute Module 4 CM4 PCIe to M.2 NVMe SSD Knob screen Raspberry Pi 5 PCIe Raspberry Pi 5 - 16GB RAM SpotPear XIAO MG24 MG24-Sense EFR32MG24 Ultra-Low-Power IMU Micphone Antenna Matter zigbee BLE Seeed Studio Arduino Raspberry Pi 5 ABS Case Jetson Xavier NX AI 21TOPS Supercomputer Edge Computing eMMC-16GB RAM 8GB 16GB NVIDIA Raspberry Pi 5 PCIE to MiniPCIe For wireless network WIFI Card USB Bluetooth 4.2 inch e-Paper G 2.1inch Rotary screen