ATOM Matrix ESP32 Development Kit


Regular price $15.50

10+ In Stock

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ATOM Matrix , which has a size of only 24 * 24mm, is the most compact development board in the M5Stack development kit series. It provides more GPIO pins and is very suitable for handy and miniature embedded device development. The main control adopts the ESP32-PICO-D4 chip, which comes integrated with Wi-Fi and Bluetooth technologies and has 4MB of integrated SPI flash memory. The Atom board provides an Infra-Red LED along with the 5 * 5 RGB LED matrix on the panel, a built-in IMU sensor (MPU6886), and a HY2.0 interface. A general purpose programmable button is provied below the RGB Led matrix to enable users to add input support to their various projects. The on-board USB interface (Type-C) enables rapid program uploading and execution. One M2 screw hole is provided on the back for mounting the board.

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)
  • Buitl-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

USB Drive problems

UnitV/M5StickV/M5StickC/ATOM may not work without driver in some systems. Users can manually install FTDI driver to fix this problem. Take the win10 environment as an example, download the driver file that matches the operating system, decompress it, and install it through the device manager. (Note: In some system environments, the driver needs to be installed twice for the driver to take effect. The unrecognized device name is usually M5Stack or USB Serial. Windows recommends using the driver file to install directly in the device manager (custom Update), the executable file installation method may not work properly).


Resources Parameter
ESP32 240MHz dual core, 600 DMIPS, 520KB SRAM, Wi-Fi, dual mode Bluetooth
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 )


  • Matrix Shelly Thermostat: A Serverless Approach Matrix Shelly Thermostat: A Serverless Approach A modular WiFi smart thermostat that doesn't need you to maintain any infrastructure: deploy it everywhere, integrate with everything. MQTT-Enabled Scrolling Text with ATOM Matrix and MicroPython MQTT-Enabled Scrolling Text with ATOM Matrix and MicroPython Use your ATOM Matrix to receive text via MQTT and scroll it on the RGB LEDs. RoverC with M5Atom RoverC with M5Atom Using M5StickC on RoverC and JoyC with M5Atom attached to display direction of the RoverC. Fun with ATOM Matrix Fun with ATOM Matrix Simple MicroPython code for the ATOM 5 x 5 LED matrix and its built-in MPU6886 accelerometer. It works with the M5StickC + NeoFlash Hat. ESP-Now Doorbell ESP-Now Doorbell A simple ESP-Now doorbell using an M5Stack Atom Matrix and Core2 controller. Voice Recognition Using PSoC6 BLE Pioneer Kit Voice Recognition Using PSoC6 BLE Pioneer Kit A device which can detect voice commands and takes action. A simple IMU Sensor game that will not let you go. A simple IMU Sensor game that will not let you go. A very simple game for the M5 ATOM. The unit must be tilted to the right or left depending if more red or more green pixels are displayed. ATOM Wall Clock ATOM Wall Clock Wall clock shows time on two concentric NeoPixel LED rings. The inner ring shows the hours, the outer ring shows minutes and seconds ATOM Board ATOM Board This is a project that uses Atom Matrix to customize shortcut keys, which is convenient for users to set key combinations Small Things can help to fix our Planet Small Things can help to fix our Planet Here is a small thing that can help to use more electricity when it is produced by renewable sources. No Pause No Pause A non-invasive solution for hot flashes during menopause using machine learning 1-Axis Attitude Control Module with ATOM 1-Axis Attitude Control Module with ATOM We aim to realize a 1-axis attitude control module (inverted pendulum). M5Stack Christmas M5 Tree M5Stack Christmas M5 Tree This year's Christmas, I decorated the tree with M5Stack devices. 1-axis attitude control module SHISEIGYO-1 1-axis attitude control module SHISEIGYO-1 I made the 1-axis attitude control module SHISEIGYO-1. It gets up without physical braking.

    Customer Reviews

    Based on 76 reviews
    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!

    Eliezer Traub
    The only problem is that there is no reason to complain!

    Great product, Fantastic price and excellent service.