Is Arduino UNO R4 WiFi LED Matrix Board Compatible with Arduino Ecosystem?
Electrical Specifications
Always confirm pin assignments against the manufacturer datasheet before wiring.
Compatibility Overview
32-bit RA4M1 ARM Cortex-M4 microcontroller board featuring built-in 12x8 LED matrix display and ESP32-S3 Wi-Fi co-processor.
Typical SPI Wiring Reference
Standard SPI signal names. This is a bus reference, not a pinout for this specific board — check the silkscreen and datasheet for its actual pin order.
Reference circuit only. A shifter is needed when the host and peripheral run at different logic levels — check both datasheets to confirm whether this applies to your pairing.
Technical Specification Matrix
| Feature / Attribute | Specification / Status |
|---|---|
| Hardware Protocol | SPI / I2C / 5V Native |
| Bridge Required | NO |
| Border Router Needed | None |
| Hardware Capabilities & Peripherals | 12x8 LED Matrix Display Wi-Fi Telemetry ESP32-S3 Co-processor Discovered by the integration at pairing time. Which of these appear depends on your integration and its version. |
| Pairing Complexity | Plug-and-Play |
| Factory Reset Instruction | Double tap reset button quickly to enter bootloader. |
Report an Error or Share What You Found in Practice
Does the reset sequence not work, an entity not appear, or the compatibility verdict not match what you see with Arduino UNO R4 WiFi LED Matrix Board? Report a correction to our index.