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.
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 ) |
