M5Stack ATOM Matrix Development Kit

SKU: MCA-001
  • 5×5 LED Matrix Display: Built-in 5×5 RGB LED matrix for displaying images and animations.
  • Compact and Lightweight: Small form factor, ideal for embedded projects and space-constrained applications.
  • Versatile I/O Support: Provides multiple I/O interfaces like GPIO, I2C, and UART for extensive expandability.
  • ESP32 Core: Powered by an ESP32 chip, supporting Wi-Fi and Bluetooth connectivity for IoT development.

19,90

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Hello, fellow geeks!

I’m an embedded systems engineer with a degree in IoT Engineering, and I’ve been deeply involved in AIoT product development for years. I’ve participated in several B2B projects from the ground up — covering open-source hardwaresystem architecturehardware selection, and solution implementation.

Through this journey, I’ve come across all kinds of AIoT products.
Some are smart, efficient, and elegantly designed; others are overcomplicated, packed with features that don’t solve real problems.
Over time, I’ve started focusing on one simple but important question:

Does this product truly solve the user’s core need?
Not just whether it’s ‘cool’ or uses the latest tech.

I firmly believe that great products don’t have to be complex or expensive — they just need to solve problems clearly and effectively, at a reasonable cost.

That’s why I created this site:
A space where engineers can connect, share, and learn from each other.

Here, I share great products and smart solutions I’ve encountered during projects — and try to explain why they’re good.
This isn’t about marketing. It’s about real experiencehonest judgment, and technical clarity.

This platform is called sharingwin, because I believe in shared success.

You’ll find high-value, practical tools and products here — to help you save time on selectionavoid unnecessary trial and error, and focus on what works.

As for me, I hope to use this space to connect with like-minded engineersexchange ideas, and — to be honest — maybe earn a little on the side too. That’s part of the fun. 😄

 

To all the makers and creators who’ve supported me along the way — thank you.
Due to some heavy personal projects recently, I haven’t been able to update or engage as frequently as I’d like — and for that, I apologize.
Moving forward, I’ll continue to optimize product content and be more active in sharing useful insights.

Your trust and support mean everything.
You’re the reason I believe this platform matters.

 

If you have any great products or ideas you think deserve more visibility, feel free to reach out.
I’m happy to help with sourcingconnect to the right supply chain, or feature it here so more engineers can see its value.

A single person has limited power —
but co-creation multiplies value.

If you believe in that too, let’s build something useful and meaningful — together.

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 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 proved 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),The brightness cannot set too high and cannot be fully bright for a long time, which will cause high temperature and maybe damage to the shell.

Features

  • ESP32 PICO-based
  • Programmable button
  • 5 * 5 RGB LED matrix panel(WS2812C)
  • Built-in Infra-red LED
  • Built-in MPU6886 Inertial Sensor (I2CAddress: 0x68)
  • Program Platform: Arduino 、 UIFlow

Applications

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

Video

Learn

Examples

Arduino

UIFlow

Specification

Resources Parameters
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
MEMS MPU6886 (I2CAddress: 0x68)
IR Infrared transmission
Button Custom button x 1
Antenna 2.4G 3D Antenna
Operating Temperature 0°C to 60°C
Case Material Plastic ( PC )
Product Size 24*24*14mm
Package Size 114*64*22mm
Product Weight 3g
Package Weight 3g

Hardware Overview

img-bc9c8013-4f56-43ff-9dc5-0f6b8558790c.webp

PinMap

imageimage

 

Include

  • 1x ATOM Matrix

Documents

EasyLoader

Schematic

schematics

 

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