ATOM Lite ESP32 IoT Development Kit


Regular price $7.50

10+ In Stock

Shipping calculated at checkout.


Atom Lite, which has a size of only 24*24mm, is a very compact development board in the M5Stack development kit series. It provides more GPIOs for user customization which is very suitable for embedded smart home devices and in making smart toys. The main control adopts the ESP32-PICO chip which comes integrated with Wi-Fi and Bluetooth technologies and has a 4MB of integrated SPI flash memory. Atom Lite board provides an Infra-Red LED, a RGB LED, buttons, and a HY2.0 interface. In addition, it can connect to external sensors and actuators through 6 GPIOs. The on-board Type-C USB interface enables rapid program upload and execution.

Product Features

  • ESP32-based
  • RGB LED(SK6812)
  • Programmable button
  • Built-in Infra-red
  • Extendable Pins & Holes
  • Program Platform: Arduino UIFlow


  • 1x ATOM Lite


  • 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 SK6812 3535 x 1
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 12g
Product Size 24*24*10mm
Package Size 43*43*13mm
Case Material Plastic ( PC )


  • Running Faucet Alarm Running Faucet Alarm Detect running faucet using low powered i. MXRT1010 development board and Edge Impulse Studio. Night Lamp with Atom Lite, Neopixel Strip and IR Remote Night Lamp with Atom Lite, Neopixel Strip and IR Remote This project replaced my daughter's old, broken night lamp. Its main components are: Atom Lite ESP32, neopixel strip, IR unit. Alarm Device controlled by Bluetooth or WiFi - Part 1 Alarm Device controlled by Bluetooth or WiFi - Part 1 Part 1 (this project): M5Stack Atom Lite (ESP32 Pico) that can be controlled by BLE or WiFi. Part 2: Android app to control the ESP32. 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 Using The Things Network with ATOM Lite and LoRaWAN Unit Using The Things Network with ATOM Lite and LoRaWAN Unit Learn how to send messages to The Things Network with MicroPython. You will need a The Things Network Gateway near you. Alexa enabled device with Atom Lite Alexa enabled device with Atom Lite Atom Lite control device with Alexa. In my house, Amazon echo is located in every room, and the lighting of living room is controlled by Alex M5Stack Christmas 3D POV Display M5Stack Christmas 3D POV Display I made a mini 3D POV Display to enhance the Christmas spirit. PUSH6060 ATOM RS485 Test PUSH6060 ATOM RS485 Test Pilot a Push6060 with ATOM and Tail485 with IUFLOW Alexa + Atom or Atom + SwitBot control Air Conditioner Alexa + Atom or Atom + SwitBot control Air Conditioner Thanks @coppercele, Make infrared remote control with M5Stack, get temperature of Swichbot thermo-hygrometer and control AC automatically M5Stack Christmas M5 Tree M5Stack Christmas M5 Tree This year's Christmas, I decorated the tree with M5Stack devices. M5Stack Christmas Rainbow LED Strip M5Stack Christmas Rainbow LED Strip An example to use LED strip with M5 Atom Lite

    Customer Reviews

    Based on 67 reviews
    Kenji Inoue

    ATOM Lite ESP32 IoT Development Kit

    John Carpenter
    Perfect size - worked within minutes

    I use it with a ENV-III sensor and sent my old setup (noname Esp32 with BME280 sensor) into retirement. Best thing is that everything comes in nice enclosures and has the same connectors.

    Peter Klingebiel
    Small and useful

    Fine and fast esp32 iot modules - iot out of the box

    Stephen S
    Great price for an amazing little device

    The ATOM Lite ESP32 is great for any microcontroller project that requires only a handful of I/O ports (6, 8 if you include the grove port). With WiFI, IR, a built-in button and RGB LED, there's a lot packed into its package.
    The USB C port is a nice upgrade relative to the old micro USB ports you still see on many microcontrollers.
    The only drawback I've noticed for these devices is the somewhat weak wifi range. It's possible to open it up and solder an external antenna, which helps greatly, but definitely be ready to sacrifice a device or two-- it requires some soldering skills and a steady hand.
    Overall a great device at a great price.

    Monty McGraw
    ATOM Lite is the tiniest Arduino with a case!

    I used my ATOM Lite to emulate the keyboard for the Tektronix 4041 GPIB controller. I soldered a surface mount 3.3V to 5V level shifter inside the ATOM Hat PCB and used three breadboard jumper cables to connect to the 4041. The ATOM Lite sends commands to change the 4041 console to the RS-232 serial port, instead of requiring a file on a DC100 tape. Since the ESP32 has so much storage space, I also added a couple of BASIC programs that can be sent to the 4041 by pressing and holding the top button on the ATOM Lite longer. The ATOM Lite also has a battery option, but I didn't need it in my application - I use 5V from the 4041 keyboard connector to power the ATOM Lite.