AtomS3R

SKU:C126

Description

AtomS3R is a highly integrated IoT programmable controller based on the ESP32-S3. It embeds an ESP32-S3-PICO-1-N8R8 SoC with on-chip Wi-Fi, 8 MB Flash, and 8 MB PSRAM.
The device features a 0.85-inch color IPS display with a programmable button beneath it, an on-board 5 V-to-3.3 V power circuit, a three-axis BMM150 geomagnetic sensor, and a six-axis BMI270 IMU.
Power supply and firmware downloading are handled through a USB Type-C connector, while a HY2.0-4P port and six GPIO plus power pins on the bottom make expansion easy.
Compared with previous products, AtomS3R is equipped with an enhanced 3D antenna that offers better performance and higher stability.
With dimensions of just 24.0 x 24.0 x 12.9 mm, it is ideal for a variety of embedded smart-device applications.

Tutorial

Arduino IDE

This tutorial shows you how to program and control AtomS3R with the Arduino IDE.

UiFlow2

This tutorial shows you how to control AtomS3R using the UiFlow2 graphical programming platform.

Features

Integrated ESP32-S3-PICO-1-N8R8 SoC
Nine-axis sensor system (BMI270 6-axis IMU + BMM150 3-axis geomagnetic sensor)
8 MB Flash and 8 MB PSRAM
Supports infrared transmission control
Programmable button
0.85-inch LCD display
Expandable pins and interfaces
Development Platform
- UiFlow2
- Arduino IDE
- ESP-IDF
- PlatformIO

Includes

1 x AtomS3R

Applications

Motion detection and attitude sensing
Smart-device control
IoT applications

Specifications

Specification	Parameter
SoC	ESP32-S3-PICO-1-N8R8, dual-core Xtensa LX7 up to 240 MHz, USB-OTG
PSRAM	8 MB PSRAM
Flash	8 MB Flash
TFT Driver	GC9107
Color IPS Resolution	128 x 128
6-Axis IMU (BMI270)	Accuracy: 0.05 % (Accel), 0.05 °/s (Gyro) I2C Address: 0x68
3-Axis Geomagnetic Sensor (BMM150)	Accuracy: 0.3 µT Mounted on BMI270, magnetometer data obtained via BMI270
Infrared	180 ° FOV, transmission distance 12.46 m (unobstructed)
Sleep Current	GPIO-5V supply: 5 V @ 11.63 µA Grove-5V supply: 5 V @ 10.75 µA USB-5V supply: 5 V @ 92.50 µA (incl. PD resistor loss)
Bottom GPIO	G5 / G6 / G7 / G8 / G38 / G39
Operating Temperature	0 ~ 40 °C
Product Size	24.0 x 24.0 x 12.9 mm
Product Weight	6.6 g
Package Size	85.0 x 65.0 x 15.5 mm
Gross Weight	12.5 g

Learn

Operating Instructions

BMM150 Magnetic Interference

Products containing magnets may interfere with the BMM150 magnetic sensor, resulting in abnormal readings. When using M5 controllers with built-in magnets, remove the magnets and keep the BMM150 away from strong magnetic fields.

Enter Download Mode

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

Note

When controlling LCD backlight, a PWM frequency of 500 Hz is recommended.

Schematics

AtomS3R Schematics PDF

1/1

PinMap

RGB & BMI270 & IR & BUTTON

ESP32-S3-PICO-1-N8R8	G0	G45	G47	G41
LP5562 (RGB Driver)	SYS_SCL	SYS_SDA
BMI270	SYS_SCL	SYS_SDA
IR			IR_LED_DRV
BUTTON				USER_BUT

BMM150

BMI270	BMI270_ASDx	BMI270_ASCx
BMM150	A_SDA	A_SCL

BMM150 Mounted on BMI270

The BMM150 is connected via the BMI270 Sensor Hub auxiliary I2C interface to realize unified 9-axis sensor data acquisition.

SCREEN

ESP32-S3-PICO-1-N8R8	LP5562_W	G48	G42	G21	G15	G14
0.85-inch IPS	LCD_BL	DISP_RST	DISP_RS	SPI_MOSI	SPI_SCK	DISP_CS

HY2.0-4P

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

Model Size

Datasheets

Softwares

Arduino

UiFlow2

AtomS3R UiFlow2 Quick Start

PlatformIO

[env:m5stack-atoms3r]
platform = espressif32@6.3.2
board = esp32-s3-devkitc-1
framework = arduino
board_build.arduino.memory_type = qio_opi
build_flags =
    -DESP32S3
    -DBOARD_HAS_PSRAM
    -mfix-esp32-psram-cache-issue
    -DCORE_DEBUG_LEVEL=5
    -DARDUINO_USB_CDC_ON_BOOT=1
    -DARDUINO_USB_MODE=1
lib_deps =
    M5Unified=https://github.com/m5stack/M5Unified

ESP-IDF

AtomS3R Factory Firmware

Easyloader

Easyloader	Download	Note
AtomS3R User Demo Easyloader	download	/

Video

AtomS3R product introduction and application showcase

Product Comparison

Product Compare	AtomS3R	AtomS3
SoC	ESP32-S3-PICO-1-N8R8	ESP32-S3FN8
Memory	8 MB Flash + 8 MB PSRAM	8 MB Flash
Sensor	BMI270 + BMM150	MPU6886
Antenna	Enhanced 3D Antenna	Standard 3D Antenna