The Adafruit Matrix Portal is an innovative, easy-to-use add-on for RGB LED matrices, enabling powerful, internet-connected LED displays with no soldering or wiring required. It plugs directly into any Adafruit HUB-75 RGB matrix display from 16x32 to 64x64, providing instant plug-and-play capabilities.This development board combines an ATSAMD51J19 Cortex M4 processor with 512KB flash and 192KB SRAM, and an ESP32 WiFi co-processor with TLS support for secure internet connectivity. It supports both Arduino and CircuitPython programming environments. ATSAMD51J19 Cortex M4 processor with 512KB flash and 192KB SRAM ESP32 WiFi co-processor with TLS support and SPI interface USB Type C connector for data and power I2C STEMMA QT connector for sensors and devices JST 3-pin connector with analog input/output capabilities LIS3DH accelerometer for motion detection or digital sand projects GPIO breakouts including 4 analog outputs with PWM and SPI support Address E line jumper for 64x64 matrix support Two user interface buttons and one reset button Indicator NeoPixel and red LED, with green power LEDs for 3V and 5V power 2x10 socket connector compatible with HUB75 ports The Matrix Portal is preprogrammed with a rainbow digital sand demo for 32x64 LED matrices. Note that this product does not include an RGB matrix or USB Type C power supply.Dimensions: 63.3mm x 44.5mm x 16.0mm; Weight: 17g.