CoreS3-SE

SKU: K128-SE

Description

CoreS3-SE is a lightweight version of the third-generation CoreS3 host in 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 240 MHz, and comes with (2.4G)WiFi functionality. It has 16MB FLASH and 8MB PSRAM onboard. Programs can be downloaded via the USB Type-C interface, supporting OTG and CDC functions, making it convenient to connect USB devices and flash firmware. The front is equipped with a 2.0-inch capacitive touch IPS screen, with the panel made of high-strength glass. The power section uses the AXP2101 power management chip and a 4-way power flow control circuit, with an overall low-power design. It also includes a MicroSD card slot. The onboard BM8563 RTC chip provides precise timing and sleep-timer wake-up functions. For sound output, it uses the 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. This product is suitable for IoT development, various DIY projects, smart home control systems, and industrial automation control systems.

Tutorial

Arduino IDE

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

Features

Based on ESP32-S3 development, supports WiFi @16MB Flash, 8MB PSRAM
Speaker, dual microphones
Capacitive touch screen
MicroSD card slot
High-strength glass material
Supports OTG and CDC functions
Uses AXP2101 power management, low-power design
Development Platform
- UiFlow2
- Arduino IDE
- ESP-IDF
- Platform.IO

Includes

1 × CoreS3-SE

Applications

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

Specifications

Specification	Parameters
SoC	ESP32-S3@Xtensa LX7 WIFI, USB-OTG function
Flash	16MB FLASH
PSRAM	8MB PSRAM
WIFI	802.11 b/g/n (2.4 GHz Wi-Fi)
Touch	FT6336U@capacitive touch, touch area pixels 320 x 280
LCD Screen	2.0"@320 x 240 ILI9342C, SPI communication
Power Management Chip	AXP2101
RTC	BM8563
Speaker	1W@9028
Amplifier	16-bit I2S amplifier chip AW88298
Audio Decoding Chip	ES7210, dual microphone input
BUS Pin	G0/G1/G2/G5/G6/G7/G8/G9/G10/G11/G12/G13/G14/G17/G18/G35/G36/G37/G43/G44
Lithium Battery Charging Current	5V/198mA
Grove Output Max Current (1200mAh battery)	DC4.2V/940mA
Grove Output Max Current (USB powered)	DC5V/680mA
Operating Temperature	0 ~ 40°C
Power Consumption	Battery powered: Standby mode: DC4.2V/104.64uA, Operating mode: DC4.2V/109.67mA USB powered: Operating mode: DC5V/166.27mA
Product Dimensions	54.0 x 54.0 x 15.5mm
Product Weight	38.2g
Package Dimensions	133.0 x 93.5 x 22.5mm
Package Weight	54.5g

Learn

Download Mode

Program Download

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

Power On/Off

Power On/Off Operation

Power On/Off Operation:
Power On: Click the left power button ①
Power Off: Hold the left power button ① for 6 seconds
Reset: Click the bottom RST reset button ②
Download Mode: Hold the RST reset button ② for 3S (green light on)

Schematics

CoreS3-SE Schematics PDF

1/7

PinMap

LCD Screen & MicroSD

LCD Pixels: 320x240

MicroSD Capacity Requirement

MicroSD card supports up to 16GB

ESP32S3 Chip	GPIO37	GPIO36	GPIO3	GPIO35				GPIO4
AW9523B					AW9523B_P1_1
AXP2101						AXP2101_DCDO1	AXP2101_LX1
ILI9342C	MOSI	SCK	CS	DC	RST	BL	PWR
TF Card	SPI_MOSI	SPI_SCK		SPI_MISO				TF_CS

CAP.TOUCH

ESP32S3 chip	GPIO12	GPIO11	AW9523B_P1_2	AW9523B_P0_0
FT6336U	I2C_SYS_SDA	I2C_SYS_SCL	TOUCH_INT	TOUCH_RST

Microphone & Amplifier

ESP32S3 Chip	GPIO12	GPIO11	AW9523B_P1_3	AW9523B_P0_2	GPIO34	GPIO33	GPIO13	GPIO0
ES7210	I2C_SYS_SDA	I2C_SYS_SCL	AW_INT	AW_RST	I2S_BCK	I2S_WCK	I2S_DATO	MCLK
AW88298	I2C_SYS_SDA	I2C_SYS_SCL

AXP Power Indicator

AXP2101	AXP_CHG_LED
Red LED	RTC_VDD

RTC

ESP32S3 Chip	GPIO12	GPIO11	AXP2101_IRQ
BM8563	I2C_SYS_SDA	I2C_SYS_SCL	AXP_WAKEUP

Internal I2C Connection

ESP32S3 Chip	GPIO12	GPIO11
AXP2101	I2C_SYS_SDA	I2C_SYS_SCL
BM8563	I2C_SYS_SDA	I2C_SYS_SCL
ES7210	I2C_SYS_SDA	I2C_SYS_SCL
AW88298	I2C_SYS_SDA	I2C_SYS_SCL

PORT

Port	Pin	Remarks
PORT-A(Red)	G2/G1	I2C
PORT-B(Black)	G9/G8	GPIO
PORT-C(Blue)	G18/G17	UART(RX/TX)

M5CoreS3 SE M-BUS Diagram

Core Series Host Pin Mapping Comparison

Model Size

Datasheets

Softwares

Quick Start

Arduino

Note

M5CoreS3 SE and M5CoreS3 have hardware differences. The library files involving camera, proximity sensor, IMU, and magnetometer parts are not compatible with M5CoreS3 SE.

CoreS3-SE Arduino Library

PlatformIO

CoreS3-SE User Demo(pio)

Easyloader

Easyloader	Download Link	Remarks
CoreS3 SE Factory Firmware Easyloader	download	/

Others

I2C Communication Address

Chip	ADDRESS
AXP2101 ADDR	0x34
AW88298 ADDR	0x36
FT6336U ADDR	0x38
ES7210 ADDR	0x40
BM8563 ADDR	0x51
AW9523 ADDR	0x58

Video

CoreS3-SE Features Introduction

Version Comparison

Compared to CoreS3, CoreS3-SE does not include a camera (GC0308), proximity sensor (LTR-553ALS-WA), IMU (BMI270), or magnetometer (BMM150). CoreS3-SE uses a medium gray color, different from the dark gray of CoreS3, and the glass panel touch area extends to the camera position. The DinBase base included in the CoreS3 kit is also removed.

Hardware Peripherals	CoreS3	CoreS3-SE
Camera (GC0308)	√	×
Proximity Sensor (LTR-553ALS-WA)	√	×
IMU (BMI270)	√	×
Magnetometer (BMM150)	√	×
RTC	√	√
Microphone	√	√
Speaker	√	√
PIMC (AXP2101)	√	√
16MB FLASH and 8MB PSRAM	√	√
Touch	√	√