Adafruit Matrix Portal S3

The Adafruit Matrix Portal S3 is a purpose-built controller for HUB75 RGB LED matrix panels, combining an ESP32-S3 microcontroller with direct hardware connections for driving 64×32 or similar HUB75 panels without any additional wiring. The board handles all the row/column signal routing internally, leaving you free to focus on what to display.

Powered by the ESP32-S3 running at 240MHz with 8MB flash and 2MB PSRAM, the Matrix Portal S3 brings WiFi 802.11 b/g/n and BLE 5.0 connectivity so your display can pull live data from the internet — weather, scores, stock prices, transit arrivals, or any web API. Native USB-C enables CircuitPython drag-and-drop programming and CDC serial without a separate UART bridge chip.

On the front panel you get two user buttons (Up and Down) for local interaction, a STEMMA QT / Qwiic I2C port for attaching sensors or other peripherals without soldering, and a UART header for debugging. CircuitPython with the built-in protomatter library makes it straightforward to get colorful animations running in minutes, while Arduino and ESP-IDF are also supported for lower-level control.