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M5Stack·Dev Board

M5Stack AtomS3R

Ultra-compact ESP32-S3 dev board (24x24mm) with 0.85" IPS LCD, BMI270 IMU, BMM150 magnetometer, 8MB PSRAM, IR transmitter, LP5562 RGB LED driver, and Grove port for IoT and robotics.

Starting from

$17.50

Specifications

ArchitectureXtensa LX7
CPU Cores2
Clock Speed240MHz
Flash8MB
GPIO Level3.3V
Power Input5V
BluetoothBLE 5.0
StorageNo
Dimensions24 x 24 x 12.9mm
Weight6.8g

Components

Espressif ESP32-S3 System-in-Package with 8MB flash and 8MB PSRAM

Bosch 6-axis IMU with accelerometer and gyroscope, ultra-low power

Bosch 3-axis digital magnetometer for compass and orientation

128x128 IPS LCD driver, SPI interface

TI 4-channel I2C LED driver with programmable patterns

Bus Interfaces

I2C
SCL: GPIO0SDA: GPIO45
SPI
CS: GPIO14SCK: GPIO15MOSI: GPIO21

GPIO Map

GPIO1
Grove Port
digital-inputdigital-outputadctouchpwm
GPIO2
Grove Port
digital-inputdigital-outputadctouchpwm
GPIO5
General GPIO
digital-inputdigital-outputadctouchpwm
GPIO6
General GPIO
digital-inputdigital-outputadctouchpwm
GPIO7
General GPIO
digital-inputdigital-outputadcpwm
GPIO8
General GPIO
digital-inputdigital-outputadcpwm
GPIO38
Button
digital-input
GPIO47
IR Transmitter
digital-outputpwm

Overview

The M5Stack AtomS3R is a highly integrated IoT programmable controller built around the ESP32-S3-PICO-1-N8R8 System-in-Package, delivering dual-core Xtensa LX7 processing at 240MHz with 8MB flash and 8MB PSRAM in a remarkably compact 24x24mm form factor weighing just 6.8g.

Building on the AtomS3, the AtomS3R adds a BMI270 6-axis IMU and BMM150 3-axis magnetometer for full 9-DoF motion and orientation sensing, an LP5562 4-channel LED driver for precise RGB control, and an enhanced 3D PCB antenna for improved wireless performance. The 0.85-inch IPS LCD (128x128) driven by GC9107, IR transmitter, and Grove port round out a feature set that supports robotics, motion tracking, voice assistant (with Echo Base), and IoT control applications.

Use Cases

5

Resources

Where to Buy

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