AtomS3

SKU:C123

Description

AtomS3 is a highly integrated programmable controller based on the ESP32-S3 main controller. It integrates the ESP32-S3 main controller, Wi-Fi functionality, 8 MB on-chip Flash, and a 0.85-inch IPS screen. Below the screen, there is a programmable button function, a built-in 5V to 3.3V circuit, and a 6-axis gyroscope sensor MPU6886. It has an onboard USB Type-C interface for power supply and firmware download, as well as a HY2.0-4P expansion port. The bottom reserves 6 GPIO and power pins for easy expansion applications. The product size is 24.0 x 24.0 x 13.0mm, suitable for various embedded smart device applications.

Tutorial

Arduino IDE

This tutorial will introduce how to program and control the AtomS3 device using the Arduino IDE.

UiFlow2

This tutorial will introduce how to control the AtomS3 device through the UiFlow2 graphical programming platform.

Features

Developed based on ESP32-S3FN8
Built-in USB download function
Built-in 3-axis gyroscope and 3-axis accelerometer (MPU6886)(I2CAddress: 0x68)
Programmable button
0.85-inch LCD screen
Infrared transmission function
Expandable pins and interfaces
Development Platform
- UiFlow2
- Arduino IDE
- ESP-IDF
- PlatformIO

Includes

1 x AtomS3

Applications

IoT nodes
Microcontrollers

Specifications

Specification	Parameter
SoC	ESP32-S3FN8
Flash	8MB
DC-DC	SY8089
IMU	MPU6886 (I2CAddress: 0x68)
TFT Driver IC	GC9107
Resolution	128 x 128
Operating Temp	0 ~ 40°C
Power Supply	5V
Power Method	TYPE C
Output Voltage	3.3V
GPIO	G5/G6/G7/G8/G38/G39
Screen Protocol	SPI
Product Size	24.0 x 24.0 x 12.9mm
Product Weight	6.9g
Package Size	85.0 x 65.0 x 16.0mm
Gross Weight	11.2g

Learn

Download Mode

To flash firmware, press and hold the reset button (about 2 seconds) until the internal green LED lights up, then release. The device is now in download mode, ready for flashing.

LCD Backlight Control

The PWM signal frequency for the LCD backlight driver is recommended to be 500Hz. A frequency that is too high may cause abnormal brightness adjustment functionality.

IMU Triaxial Direction Schematic Diagram

Schematics

1/2

PinMap

MPU6886

The I2C pins on the back share the same bus

ESP32-S3	IO38	IO39
MPU6886 (0x68)	SDA	SCL

LCD

ESP32-S3	G21	G17	G15	G33	G34	G16
MPU6886	MOSI	SCK	CS	RS	RST	LCD_BL

HY2.0-4P

HY2.0-4P	Black	Red	Yellow	White
PORT.CUSTOM	GND	5V	G2	G1

Model Size

Structure

AtomS3 Structure Files

Datasheets

Softwares

Arduino

UiFlow2

AtomS3 UiFlow2 Quick Start

PlatformIO

AtomS3 Factory Firmware

[env:m5stack-atoms3]
platform = espressif32
board = esp32-s3-devkitc-1
framework = arduino
upload_speed = 1500000
monitor_speed = 115200
build_flags =
    -DESP32S3
    -DCORE_DEBUG_LEVEL=5
    -DARDUINO_USB_CDC_ON_BOOT=1
    -DARDUINO_USB_MODE=1
lib_deps =
    M5Unified=https://github.com/m5stack/M5Unified

Easyloader

Easyloader	Download Link	Note
AtomS3 User Demo	download	/

Video

Displaying images on AtomS3 using UIFlow

Burning UIFlow 2X Alpha Firmware to AtomS3

Product Comparison

To compare information on the Atom series products, you can visit the Product Selection Table, check the target products, and get the comparison results. The selection table covers key information such as core parameters and functional features, and supports comparison of multiple products simultaneously.