CoreS3

SKU: K128

Description

CoreS3 is the third-generation main unit of the M5Stack development kit series. Its core controller uses the ESP32-S3 solution, featuring a dual-core Xtensa LX7 processor with a main frequency of 240MHz. It comes with WiFi functionality, onboard 16M FLASH and 8M-PSRAM, and supports program downloading via the TYPE-C interface. It also supports OTG and CDC functions, making it easy to connect USB devices and flash firmware. The front side is equipped with a 2.0-inch capacitive touch IPS screen, with the panel made of high-strength glass. Below the screen is a built-in 300,000-pixel camera GC0308, along with a proximity sensor LTR-553ALS-WA. The power section uses the AXP2101 power management chip and a 4-way power flow control circuit, designed with low power consumption in mind. The board includes a six-axis motion sensor BMI270 and a magnetometer BMM150, a TF-card (microSD) slot, and a BM8563 RTC chip, providing precise timing and sleep-timer wake-up functions. For sound output, it uses a high-fidelity 16-bit I2S amplifier chip AW88298, with a built-in 1W speaker. For sound input, it uses the ES7210 audio decoding chip with dual microphone input. On the side of the device, there are independent power and reset (RST) buttons, with a built-in delay circuit. Holding the reset button for a long time will enter the program download mode. The CoreS3 kit comes with a DinBase base by default, making it easy to mount on DIN rails, walls, or screw-fixed installations. It can be powered by an external DC 12V (supports 9-24V) or an internal 500mAh lithium battery. The DinBase has multiple proto positions reserved for user DIY. This product is suitable for IoT development, various DIY projects, smart home control systems, and industrial automation control systems.

Tutorial

Arduino IDE

Arduino IDE

This tutorial will introduce you to how to program and control the CoreS3 device using Arduino IDE

UiFlow2

UiFlow2

This tutorial will introduce you to how to control the CoreS3 device using the UiFlow2 graphical programming platform

Home Assistant

Home Assistant

This tutorial will introduce you to how to connect CoreS3 to Home Assistant

Features

• Based on ESP32 development, supports WiFi @16M Flash, 8M PSRAM
• Built-in camera, proximity sensor, speaker, power indicator, RTC, I2S amplifier, dual microphones, capacitive touch screen, power button, reset button, gyroscope
• TF card slot
• High-strength glass material
• Supports OTG and CDC functions
• Uses AXP2101 power management, low power consumption design
• Development platforms
  • UiFlow2
  • Arduino IDE

Includes

• 1 × CoreS3
• 1 × DinBase
• 1 × M3 hex wrench
• 1 × Large hanger
• 4 × Small hangers

Applications

• IoT development
• Various DIY projects
• Smart home control systems
• Industrial automation control systems

Specifications

Learn

Download Mode

Before downloading the program, hold the reset button for 3 seconds (green light on) to enter download mode.

Certifications

• CE/MIC/FCC/SAR

Schematics

• CoreS3 Schematics PDF

1/7

PinMap

LCD Screen & TF Card

LCD Resolution: 320x240 TF Card supports up to 16GB

Camera & Proximity Sensor LTR-553ALS-WA

CAP.TOUCH (I2C Addr: 0x38)

Microphone & Amplifier

AXP Power Indicator

RTC

IMU (3-Axis Gyroscope + 3-Axis Accelerometer + 3-Axis Magnetometer)

Internal I2C Connections

PORT

M-BUS

Model Size

3D

• Cores3 Model Dimensions DXF

Datasheets

• esp32-s3
• LTR-553ALS-WA
• GC0308
• ES7210
• BMM150
• BMI270
• BM8563
• AXP2101
• AW88298
• AW9523B

Softwares

Quick Start

• CoreS3 OpenAI Voice Assistant
• CoreS3 XiaoZhi Voice Assistant
• CoreS3 Home Assistant

Arduino

• CoreS3-UserDemo
• M5CoreS3 Library
• M5Unified
• M5GFX

UiFlow2

• CoreS3 UiFlow2 Quick Start
• CoreS3 UiFlow2 Book

Platform.IO

• CoreS3 User Demo

[env:m5stack-cores3]
platform = espressif32@6.3.2
board = esp32-s3-devkitc-1
framework = arduino
upload_speed = 1500000
monitor_speed = 115200
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

• Espressif's Board Support Packages - CoreS3

Easyloader

使用 Web Tools 烧录 CoreS3 出产固件

Others

• I2C Address

Video

• How to use USB port execute code on UiFlow2

• Burning UIFLow2 to CoreS3

FAQ

• Q: After the sensor is connected, what is the case that the sensor does not work or does not exist?
• A: The CoreS3 uses the AXP2101 power management chip, and the Port port and the M5-Bus power supply need to be configured for normal output voltage. Add M5.config() to the setup function; Will automatically configure the Unit and M5BUS output to 5V(excluding USB 5V), the sensor and base will work properly;
  If you need 9-24V of the base as a power input, you need to configure cfg.output_power = false; This means that the MBUS can work properly only if it is set to the input state.