M5Stack AtomS3 Lite

M5Stack AtomS3 Lite Controller (ESP32‑S3)
M5Stack AtomS3 Lite is a compact programmable controller built around the ESP32‑S3FN8 MCU. Measuring only 24 mm × 24 mm × 9.5 mm, this tiny board integrates Wi‑Fi and Bluetooth connectivity, 8 MB SPI flash, a USB‑C port for power/programming, and a 5 V‑to‑3.3 V regulator. It includes an IR transmitter LED, a programmable button, an RGB status indicator and a HY2.0‑4P (Grove) interface. Six GPIO pins (G5, G6, G7, G8, G38, G39) are exposed through female headers for expansion. The board supports development with UiFlow2, Arduino IDE, ESP‑IDF and PlatformIO.

Key features

• ESP32‑S3FN8 dual‑core microcontroller with Wi‑Fi and Bluetooth support.
• 8 MB SPI flash memory; integrated 3D antenna.
• USB Type‑C port for power and programming, with built‑in download/serial function.
• Programmable user button, IR transmitter and RGB status LED.
• Six GPIO pins and HY2.0‑4P interface for external sensors and modules.
• Supports UiFlow2, Arduino IDE, ESP‑IDF and PlatformIO development environments.
• Suitable for IoT nodes, embedded devices and DIY automation projects.

Specifications

• SoC: ESP32‑S3FN8; 8 MB flash; integrated Wi‑Fi and Bluetooth.
• Operating voltage: 5 V input; onboard 3.3 V regulator.
• IO interface: 6× GPIO (G5, G6, G7, G8, G38, G39) plus Grove HY2.0‑4P connector.
• Dimensions: 24 mm × 24 mm × 9.5 mm; weight: approx. 5.3 g.

Use cases

• Compact IoT nodes for smart home or industrial sensing.
• Embedded controller for small robots, sensors or consumer electronics.
• Prototyping platform for Wi‑Fi/BLE connected devices.

Note: This controller is part of the M5Stack Atom series and uses the ESP32‑S3 microcontroller. It’s ideal for projects that need wireless connectivity and a small form factor.M5Stack AtomS3 Lite Controller (ESP32‑S3)