Matrix Portal S3 - RGB LED matrix controller with ESP32-S3 module (u.FL connector) - Adafruit 6475

Description

Matrix Portal S3 is an advanced controller module designed for building LED displays based on popular RGB HUB75 matrices. The device allows users to quickly create impressive information panels, clocks, IoT dashboards, or animated lighting installations without complicated wiring. The platform supports LED matrices ranging from 16×32 to 64×64 pixels and also allows multiple panels to be combined into larger displays.

At the core of the module is the powerful Espressif ESP32-S3, equipped with 8 MB Flash memory and 2 MB PSRAM, providing significant computing power and space for graphics, animations, and application data. The module includes built-in Wi-Fi and Bluetooth Low Energy connectivity, enabling integration with network services and IoT platforms. Programming is supported in Arduino and CircuitPython, making it easy to develop display control applications. The integrated Protomatter library enables efficient control of LED matrices using the hardware capabilities of the ESP32-S3.

The board features a USB Type-C connector used for programming and power, as well as a STEMMA QT (I2C) connector that allows easy connection of sensors and expansion modules. An additional 3-pin JST port enables quick connection of JST-PH wired components, including analog signals. The board also integrates a LIS3DH accelerometer, which can detect orientation, motion, or vibration, enabling interactive projects that respond to movement or device position.

The device provides exposed GPIO pins that allow additional peripherals to be connected via interfaces such as PWM, SPI, I2S, and UART. Built-in user buttons, status LEDs, and a NeoPixel indicator simplify debugging and user interface handling. The hardware layout ensures that the 2×10 connector perfectly matches HUB75 ports, reducing the risk of incorrect cable connections. Additionally, a standard 2×8 IDC connector compatible with typical LED panel cables is available.

The module also includes a u.FL antenna connector, allowing the use of an external Wi-Fi antenna. This makes it suitable for installations inside metal enclosures or outdoor setups where improved wireless signal quality is required. Thanks to the dual-core processor architecture, one core can handle network communication while the other controls the display or executes user code. The platform is ideal for projects such as internet-connected information boards, IoT data displays, artistic lighting installations, monitoring systems, and real-time data visualization.

Features

• Module: ESP32-S3, dual core
• Flash memory: 8 MB
• SRAM / PSRAM: 2 MB
• Supported environments: Arduino and CircuitPython
• Wireless connectivity: Wi-Fi and Bluetooth® Low Energy (BLE)
• USB Type-C connector for data and power
• STEMMA QT I2C connector for STEMMA QT modules and sensors
• Compatibility with Grove I2C modules using an appropriate adapter
• 3-pin JST connector with analog input compatible with JST-PH 2.0 mm cables
• LIS3DH accelerometer for orientation and motion detection
• GPIO pins including reset, boot mode selection, and debug TX output
• 6 GPIO pins including 4 analog inputs
• Support for PWM, SPI, and I2S
• Address jumper for supporting 64×64 matrices (default pin 8)
• Two user interface buttons
• Reset button
• NeoPixel status indicator LED
• Red status LED
• Green LEDs indicating 3 V and 5 V power
• 2×10 connector aligned with HUB75 ports
• 2×8 IDC connector compatible with standard LED matrix cables
• Supported matrix sizes: from 16×32 to 64×64
• Ability to chain multiple matrices in series or grid configuration
• USB device support in HID mode (keyboard, mouse, MIDI)
• Communication interfaces: I2C, SPI, I2S, UART
• u.FL antenna connector for external Wi-Fi antenna