ATOM Matrix ESP32 Development Kit


Regular price $15.50

10+ In Stock

Shipping calculated at checkout.


ATOM Matrix  is a compact development board in the M5Stack development kit series. With its small size of only 24 * 24mm, this board is perfect for handy and miniature embedded device development. It offers an increased number of GPIO pins, providing ample flexibility for your projects.

The main control of ATOM Matrix is powered by the ESP32-PICO-D4 chip, which integrates Wi-Fi technologies and includes 4MB of SPI flash memory. This ensures seamless connectivity and sufficient storage capacity for your applications.ATOM Matrix features an Infra-Red LED and a 5 * 5 RGB LED matrix on the panel, allowing for vibrant visual displays. Additionally, it comes equipped with a built-in IMU sensor (MPU6886) and a HY2.0 interface, expanding its capabilities for motion sensing and communication with other devices.

To enhance user interaction, a programmable button is conveniently placed below the RGB LED matrix, enabling easy input integration into various projects. The on-board USB interface (Type-C) facilitates fast program uploading and execution, simplifying the development process. With its compact size, powerful features, and convenient mounting options with the M2 screw hole on the back, ATOM Matrix is the ideal choice for developers seeking a versatile and compact solution for embedded device development.

Note: When using FastLED lib, the recommended brightness of RGB LED is 20. Please do not set it to a high brightness value to avoid damage to the LED and acrylic screen. (In ATOM lib, we have mapped its appropriate brightness range to 0~100)

Product Features

  • ESP32 PICO-based
  • Programmable button
  • 5 * 5 RGB LED matrix panel(WS2812C)
  • Built-in Infra-red LED
  • Built-in MPU6886 Inertial Sensor
  • Extendable Pins & Holes
  • Program Platform: Arduino UIFlow


  • 1x ATOM Matrix


  • Internet of things terminal controller
  • IoT node
  • Wearable peripherals


Resources Parameter
ESP32 240MHz dual core, 600 DMIPS, 520KB SRAM, Wi-Fi
Flash 4MB
Power Input 5V @ 500mA
Port TypeC x 1, GROVE(I2C+I/0+UART) x 1
PIN Port G19, G21,G22,G23,G25, G33
RGB LED WS2812C 2020 x 25
IR Infrared transmission
Button Custom button x 1
Antenna 2.4G 3D Antenna
Operating Temperature 0°C to 60°C
Net weight 3g
Gross weight 14g
Product Size 24*24*14mm
Package Size 43*43*20mm
Case Material Plastic ( PC )
This tutorial will show you how to control ATOM devices through the UIFlow graphical programming platform
This tutorial will show you how to program and control ATOM devices through Arduino IDE
This tutorial will show you how to control ATOM devices through Micropython programming
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Simple MicroPython code for the ATOM 5 x 5 LED matrix and its built-in MPU6886 accelerometer. It works with the M5StickC + NeoFlash Hat.
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This is a project that uses Atom Matrix to customize shortcut keys, which is convenient for users to set key combinations
Here is a small thing that can help to use more electricity when it is produced by renewable sources.
A non-invasive solution for hot flashes during menopause using machine learning
We aim to realize a 1-axis attitude control module (inverted pendulum).
This year's Christmas, I decorated the tree with M5Stack devices.
I made the 1-axis attitude control module SHISEIGYO-1. It gets up without physical braking.


  • Customer Reviews

    Based on 77 reviews
    Nikolay Masin

    Made a video sponsored you guys!

    Andreas Golla
    Really nice device

    Really nice: Built a biorhythm application, an open fire simulation and an electronic ticker controlled by bluetooth

    Nomura Yukinori
    It’s good!

    body size is small, but possibility is big.

    Great stuff

    Works well :)

    Gergely Szabó
    Fantastic little toy

    Good build quality, good performance. Better than expected. Thanks m5stack guys!

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