ATOM Lite ESP32 IoT Development Kit


Regular price $7.50
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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: ArduinoUIFlow


  • 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.


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 32°F to 104°F ( 0°C to 40°C )
Net weight 3g
Gross weight 12g
Product Size 24*24*10mm
Package Size 43*43*13mm
Case Material Plastic ( PC )


Customer Reviews

Based on 64 reviews
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.

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.


Great product

Very compact and full of great features.

Good device

it is a basic device but very versatile for specific applications

Great product, small, extendable and affordable

Thanks for sending it safely to even The Netherlands

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