The M5Stack ATOM Matrix is the most compact development board for the ESP32 with dimensions of just 24 x 24mm. The ATOM features an ESP32-PICO-D4 microcontroller that has integrated WiFi and Bluetooth technology and has 4MB of integrated SPI flash memory. The Atom board provides an infrared LED together with a 5x5 RGB LED matrix, an MPU6886 IMU sensor, and a PH2.0 interface. Underneath the NEO RGB LED matrix is a programmable button that can be actuated through the plastic cover of the LED matrix. The integrated USB Type-C interface allows for quick uploading and running of programs. An M2 screw hole is provided on the back for easy mounting of the ATOM. On the back of the ATOM, various I/Os are routed via a 2.54 female header, which you can easily connect with a Dupont cable. The ATOM can be programmed with Micropython or via the Arduino IDE.
Info: UiFlow will only be available for the ATOM from mid-February 2020.
The ATOM Matrix has the following sensors and actuators:
IR transmitter
1x Button
1x Reset Button
5x5 RGB LED matrix (maximum 20% brightness allowed)
6-Axis MPU6886 3-Axis Acceleration Sensor with 3-Axis Gyro
Grove Interface
Supported Development Platform: UIFlow, MicroPython, Arduino