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CONTENTS

Atom-Lite

SKU:C008

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Description

Atom-Lite is a very compact development board in the M5Stack development kit series, with a size of only 24.0 x 24.0 mm, providing more GPIO for user customization, making it very suitable for embedded smart hardware development. The main controller uses the ESP32-PICO-D4 solution, integrates a Wi-Fi module, has a built-in 3D antenna, and features 4 MB of SPI flash, providing Infra-Red, RGB Led, button, and GROVE/HY2.0 interfaces. The onboard USB Type-C interface allows for quick program upload and download, and there is an M2 screw hole on the back for fixing.

Tutorial

UiFlow1 UiFlow1
UiFlow1
This tutorial will show you how to control the Atom-Lite device using the UiFlow1 graphical programming platform.
UiFlow2 UiFlow2
UiFlow2
This tutorial will show you how to control the Atom-Lite device using the UiFlow2 graphical programming platform.

Features

  • Based on ESP32 development
  • Compact body
  • Built-in infrared transmission function
  • Programmable button
  • RGB LED indicator
  • Expandable pins and interfaces
  • Development Platform
    • UiFlow1
    • UiFlow2
    • Arduino IDE
    • ESP-IDF
    • PlatformIO

Includes

  • 1 x Atom-Lite

Applications

  • IoT nodes
  • Microcontrollers
  • Wearable devices

Specifications

Specification Parameter
SoC ESP32-PICO-D4@Dual-core processor, 240MHz
DMIPS 600
SRAM 520KB
Flash 4MB
Wi-Fi 2.4 GHz Wi-Fi
Input Voltage 5V @ 500mA
Host Interface USB Type-C x 1, GROVE(I2C+I/O+UART) x 1
PIN Interface G19, G21, G22, G23, G25, G33
RGB LED SK6812 3535 x 1
IR IR transmitter
Button Customizable button x 1
Antenna 2.4G 3D antenna
Operating Temp 0 ~ 40°C
Case Material Plastic (PC) + ABS
Product Size 24.0 x 24.0 x 9.5mm
Product Weight 5.5g
Package Size 81.0 x 65.0 x 13.0mm
Gross Weight 10.9g

Schematics

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PinMap

RGB & Button & IR & I2C

ESP32-PICO-D4 G27 G39 G12 G21 G25
RGB RGB
Button Button
IR IR
I2C SCL SDA

HY2.0-4P

HY2.0-4P Black Red Yellow White
PORT.CUSTOM GND 5V G26 G32

Model Size

Datasheets

Softwares

Arduino

UiFlow1

UiFlow2

PlatformIO

[env:m5stack-atom]
platform = espressif32@6.7.0
board = m5stack-atom
framework = arduino
upload_speed = 1500000
monitor_speed = 115200
build_flags =
    -DCORE_DEBUG_LEVEL=5
lib_deps =
    M5Unified=https://github.com/m5stack/M5Unified

USB Driver

Atom-Lite may not work driver-free on some systems. Users can manually install the FTDI VCP driver to resolve this issue. Taking Windows 10 as an example, download the driver file that matches your operating system and extract it. Then, install it via Device Manager. (Note: In certain system environments, you may need to install the driver twice for it to take effect. The unrecognized device name is usually M5Stack or USB Serial. For Windows, it is recommended to use Device Manager to install the driver manually (custom update). The executable installation method may not work properly.)

FTDI VCP Driver Download Page:

Installation Method:

Easyloader

Easyloader Download Link Note
Atom-Lite Factory Test Easyloader download /

Video

  • Test if the RGB LED and button are working properly with the color-changing breathing light program

Product Comparison

To compare information on the Atom series products, you can visit the Product Selection Table, check the target products, and get the comparison results. The selection table covers key information such as core parameters and functional features, and supports comparison of multiple products simultaneously.