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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.
Difference Between M5Stack CoreS3 and M5Stack CoreS3 SE
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 | √ | √ |
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
Specification
| Resources | Parameters |
|---|---|
| MCU | ESP32-S3@Xtensa LX7, 16MB FLASH AND 8MB PSRAM, WIFI, OTG\CDC functions |
| Touch the IPS LCD screen | 2.0"@320*240 ILI9342C |
| Power management chip | AXP2101 |
| RTC | BM8563 |
| Speaker | 16bits-I2S power amplifier chip AW88298@1W |
| Audio decoding chip | ES7210, dual microphone inputs |
| 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 |
| Product Size | 54*54*15.5mm |
| Package Size | 133.4*95*21mm |
| Product Weight | 38.4g |
| Package Weight | 55.1g |
I2C Address
| Chip | ADDRESS |
|---|---|
| AXP2101 ADDR | 0x34 |
| AW88298 ADDR | 0x36 |
| FT6336U ADDR | 0x38 |
| ES7210 ADDR | 0x40 |
| BM8563 ADDR | 0x51 |
| AW9523 ADDR | 0x58 |
Schematics
PinMap
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) |
Softwares
Quick Start
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.
Platform.IO
Easyloader
| Easyloader | Download Link | Notes |
|---|---|---|
| CoreS3 SE Factory Firmware Easyloader | Download | / |
I2C Communication Addresses
| Chip | ADDRESS |
|---|---|
| AXP2101 ADDR | 0x34 |
| AW88298 ADDR | 0x36 |
| FT6336U ADDR | 0x38 |
| ES7210 ADDR | 0x40 |
| BM8563 ADDR | 0x51 |
| AW9523 ADDR | 0x58 |
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