EmbeddedRelated.com
The 2026 Embedded Online Conference
    Parts    C124
M5Stack AtomS3 Lite ESP32-S3FN8

M5Stack AtomS3 Lite ESP32-S3FN8

MPN: C124
M5Stack Technology Co., Ltd.
ESP32-S3FN8 AtomS3 Lite ESP32-S Xtensa® MPU 802.11 b/g/n (WiFi/WLAN/Wi-Fi 4), Bluetooth® 5.x (BLE) 2.4GHz Embedded Evaluation Board
Active2,037 in stock
Datasheet Digi-Key Compare Prices

Overview

The M5Stack AtomS3 Lite (C124) is a compact development board built around the Espressif ESP32-S3FN8 microcontroller, offering integrated Wi-Fi and Bluetooth 5.x connectivity. It features a programmable button, infrared emission, and expandable pins, making it suitable for a wide range of embedded applications. Its small 24mm x 24mm footprint allows for integration into space-constrained designs.

Why Choose This Part

Engineers benefit from the C124's compact size and the powerful ESP32-S3FN8, which provides 8MB of flash memory. The inclusion of a programmable button and infrared emitter on a small module reduces external component count for basic applications. Its robust wireless connectivity (Wi-Fi 4 and Bluetooth 5.x) is essential for modern connected devices.

Applications

IoT Nodes
Ideal for creating compact and connected IoT end nodes that require Wi-Fi or Bluetooth Low Energy communication, such as environmental sensors or smart actuators.
Wearable Devices
Its small size and integrated wireless capabilities make it a strong candidate for prototypes and small-scale production of smart wearables.
Embedded Smart Devices
Suitable for adding smart functionality to various devices, including home automation controls, portable instruments, or simple display systems.
Rapid Prototyping
The integrated USB download function and expansion pins simplify development and iteration for proofs-of-concept.
Remote Control Systems
The built-in infrared emission function allows for the development of simple remote control applications for consumer electronics.

Getting Started

To get started with the M5Stack AtomS3 Lite, engineers can utilize the ESP-IDF framework or Arduino IDE, which both offer extensive support for the ESP32-S3. The USB-C interface facilitates easy program downloads and serial communication. M5Stack provides libraries and examples through their documentation to accelerate development.

The 2026 Embedded Online Conference