CoreS3-SE

SKU:K128-SE

Description

The M5CoreS3 SE is a lightweight version of the third-generation CoreS3 main unit in the M5Stack development kit series. It is powered by the ESP32-S3 solution, featuring a dual-core Xtensa LX7 processor with a main frequency of 240MHz, and comes with built-in (2.4G)WiFi functionality. It has onboard 16MB FLASH and 8MB PSRAM; programs can be downloaded via the TYPE-C interface, which supports OTG and CDC functions, making it convenient to connect USB devices and burn firmware. The front is equipped with a 2.0-inch capacitive touch IPS screen, with a high-strength glass panel. The power supply part uses the AXP2101 power management chip and 4-way power flow control circuit, designed for low power consumption overall. It has an onboard MicroSD card slot and a BM8563 RTC chip that provides precise timing and sleep-timer wake-up functions. For sound output, it uses a high-fidelity 16-bit I2S amplifier chip AW88298 and has a built-in 1W speaker. For sound input, it uses an ES7210 audio decoding chip with dual microphone input. The device body has an independent power button and reset (RST) button on the side, with a built-in delay circuit. Long pressing the reset button enters program download mode. This product is suitable for IoT development, various DIY project development, smart home control systems, and industrial automation control systems.

Version comparison

Compared to the M5CoreS3, the M5CoreS3 SE does not feature a camera (GC0308), proximity sensor (LCR-553ALS-WA), IMU (BMI270), or magnetic compass (BMM150).The M5CoreS3 SE uses a medium grey number different from the black grey number of the M5CoreS3, and the glass panel touch area extends to the camera position. The DinBase base with the original M5CoreS3 kit was removed.

Hardware peripheral	M5CoreS3	M5CoreS3 SE
Camera(GC0308)	√	×
Proximity Sensor(LTR-553ALS-WA)	√	×
IMU(BMI270)	√	×
Compass(BMM150)	√	×
RTC	√	√
MIC	√	√
SPEAKER	√	√
PMIC(AXP2101)	√	√
16MB FLASH and 8MB PSRAM	√	√
TOUCH	√	√

Download Mode

Before downloading the program, please be sure to press and hold the reset button 3S (green light) to enter the download mode, otherwise the download will fail!

On-off Operation

Power on and off operation:
Power on: Click the left power button①
shut down: Long press the left power button① for 6 seconds
reset: Click the bottom RST button②
Download mode: Long press reset button② 3S (green light)

Tutorial

Arduino IDE

This tutorial will show you how to program and control CoreS3 SE devices through Arduino IDE

Features

Developed based on ESP32-S3, support WiFi @16MB Flash, 8MB PSRAM
Speakers,Dual microphones
Capacitive touch screen
MicroSD card slot
High-strength glass
Support OTG and CDC functions
AXP2101 power management, low power design
Supported programming platforms: Arduino, UIFlow

Includes

1 × M5CoreS3 SE

Applications

IoT development
Various DIY project development
Smart home control system
Industrial automation control system

Specifications

Resources	Parameters
SoC	ESP32-S3@Xtensa LX7 WIFI,OTG\CDC functions
Flash	16MB FLASH
PSRAM	8MB PSRAM
WIFI	802.11 b/g/n (2.4 GHz Wi-Fi)
TOUCH	FT6336U@Capacitive Touch,Touch area pixel: 320*280
LCD Screen	2.0"@320*240 ILI9342C,SPI Communication
Speaker	1W@9028
Power Amplifier	16bits-I2S Power amplifier chip AW88298
Bus pin	G0/G1/G2/G5/G6/G7/G8/G9/G10/G11/G12/G13/G14/G17/G18/G35/G36/G37/G43/G44
Power management chip	AXP2101
RTC	BM8563
Audio decoding chip	ES7210, dual microphone inputs
Lithium battery charging current	5V/198mA
Grove Output maximum current (lithium battery powered)	DC4.2V/940mA
Grove Output Maximum current (USB powered)	DC5V/680mA
Power Dissipation	Battery: Standby mode: DC4.2V/104.64uA Working mode:DC4.2V/109.67mA USB power supply: In working mode: DC5V/166.27mA
Operating Temperature	0-40°C
Product Size	545415.5mm
Package Size	133.49521mm
Product Weight	38.4g
Package Weight	55.1g

EasyLoader

EasyLoader is a concise and fast program writer, which has a built-in case program related to the product. It can be burned to the main control by simple steps to perform a series of function verification.

Factory Firmware

Download CoreS3 SE Factory Firmware Easyloader

I2C Address

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

Pin Map

LCD Screen & MicroSD

LCD Pixel:320x240

MicroSD Specifications

MicroSD support 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 Led

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	NOTE
PORT-A(RED)	G2/G1	I2C
PORT-B(BLACK)	G9/G8	GPIO
PORT-C(BLUE)	G18/G17	UART(RX/TX)

M5CoreS3 M-BUS Schematic diagram

Core series host pin mapping comparison

Power Management

Schematic

Complete schematic pdf

Model Size

Examples

Arduino

NOTE

There are hardware differences between M5CoreS3 SE and M5CoreS3. The codes in the library file involving camera, proximity sensor, IMU, and magnetic sensor are not applicable to M5CoreS3 SE.

Video

M5CoreS3 S3 Function Introduction