CoreS3-SE is the lightweight version of the third-generation CoreS3 in the M5Stack development-kit family. Powered by an ESP32-S3 SoC with dual-core Xtensa LX7 processors running at 240 MHz, it integrates 2.4 GHz Wi-Fi, 16 MB Flash and 8 MB PSRAM. Programs can be downloaded via the USB Type-C interface, which also supports OTG and CDC for easy connection to USB devices and firmware flashing.
The front side features a 2.0-inch capacitive IPS touch screen protected by high-strength glass. Power management is handled by an AXP2101 PMU together with four power-flow control loops, enabling an overall low-power design. A built-in microSD card slot is provided. The on-board BM8563 RTC offers accurate timekeeping plus sleep–timed wake-up.
Audio output is delivered through a high-fidelity 16-bit I2S amplifier (AW88298) driving the built-in 1 W speaker, while audio input is handled by an ES7210 codec with dual-microphone input.
Independent POWER and RESET (RST) buttons are located on the side, with a dedicated delay circuit that allows entering download mode by long-pressing the RESET button.
This unit is well suited for IoT development, DIY projects, smart-home control systems and industrial automation.
Battery: Stand-by DC 4.2 V @ 104.64 µA; Working DC 4.2 V @ 109.67 mA USB: Working DC 5 V @ 166.27 mA
Product Size
54.0 × 54.0 × 15.5 mm
Product Weight
37.8 g
Package Size
133.0 × 93.5 × 22.5 mm
Gross Weight
54.5 g
Learn
Download Mode
Download Mode
Before uploading the program, long-press the RESET button for 3 s (green LED lights up) to enter download mode.
Power On/Off
Power On/Off
• Power on: single-click the left POWER button • Power off: long-press the left POWER button for 6 s ① • Reset: single-click the bottom RESET button ②
Power Management
CoreS3-SE uses the AXP2101 PMU together with the AW9523B IO expander to control power input/output directions. Refer to the pin states of BUS_OUT_EN and USB_OTG_EN in the figure below and check the example code in CoreS3 Power Manager Example。
Due to hardware differences between CoreS3-SE and CoreS3, the sections of the library related to the camera, proximity sensor, IMU and magnetometer are not applicable to CoreS3-SE.
Compared with the CoreS3, the CoreS3-SE is not equipped with a camera (GC0308), proximity sensor (LTR-553ALS-WA), IMU (BMI270) or magnetometer (BMM150). The CoreS3-SE comes in a mid-gray color different from the black-gray of the CoreS3, and the touch area of the glass panel extends to the camera position. The DinBase dock included with the original CoreS3 kit has been removed.
