M5Stack Core2 ESP32 IoT Development Kit V1.1
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M5Stack Core2 ESP32 IoT Development Kit V1.1
The M5Stack Core2 V1.1 is equipped with a 2.0-inch integrated capacitive touch screen. The three dots located on the front of the screen are integral to the touch interface. M5Stack Core2 users have the capability to configure the hot zone mapping to create three virtual buttons through programming, thereby facilitating diverse human-machine interaction experiences. Furthermore, the M5Stack Core2 V1.1 is equipped with a built-in vibration motor, which provides haptic feedback and vibration alert functionality.
The M5Stack Core2 V1.1 is equipped with an integrated Real-Time Clock (RTC) module and a dedicated battery for powering the RTC, which ensures precise timing functionality. Additionally, the AXP2101 power management chip optimally regulates the device's power consumption. The M5Stack Core2 V1.1 features a built-in blue power indicator light, which can be utilized to execute specific functions or display status indications based on the user's application requirements. Furthermore, this device includes a MicroSD card slot, a speaker, and a high-quality I2S digital audio interface power amplifier chip. The expansion board mounted on the rear of the device incorporates a 6-axis Inertial Measurement Unit (IMU) sensor and a microphone, thereby enhancing its functionality and expanding its potential applications.
M5Stack Core2 V1.1 Features
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ESP32-based, built-in Wi-Fi
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16M Flash, 8M PSRAM
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Built-in speaker, power indicator, vibration motor, RTC, I2S amplifier, capacitive touch screen, power button, reset button
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TF card slot (16G Maximum size)
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Built-in lithium battery, equipped with power management chip
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Independent small board built-in 6-axis IMU, PDM microphone
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M-Bus Socket & Pins
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M5Stack Core2 V1.1 Compatible with multi-platform development:
Includes
-
1x M5Stack Core2 V1.1
-
1x Type-C USB(20cm)
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1x HEX KEY
M5Stack Core2 V1.1 Applications
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Internet of Things terminal controller
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Stem education product
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DIY creation
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Smart home equipment
M5Stack Core2 V1.1 Specification
| Resources | Parameters |
|---|---|
| ESP32-D0WDQ6-V3 | 240MHz dual core, 600 DMIPS, 520KB SRAM, Wi-Fi |
| Flash | 16MB |
| PSRAM | 8MB |
| Input Voltage | 5V @ 500mA |
| Interface | TypeC x 1, GROVE(I2C+I/0+UART) x 1 |
| IPS LCD Screen | 2.0"@320*240 ILI9342C |
| Touch Screen | FT6336U |
| Speaker | 1W@NS4168 |
| LED | Green power indicator light |
| Button | Power button, RST button, Virtual screen button*3 |
| Vibration reminder | 1027DC Vibration motor |
| MIC | SPM1423 |
| I2S Power Amplifier | NS4168 |
| 6-axis IMU | MPU6886 |
| RTC | BM8563 |
| PMU | AXP192 |
| USB Chip | CH9102F |
| DC-DC Boost | SY7088 |
| TF card slot | 16G Max |
| Lithium Battery | 500mAh @ 3.7V |
| Antenna | 2.4G 3D antenna |
| Operating temperature | 0°C to 60°C |
| Base screw specifications | Hexagon socket countersunk head M3 |
| Internal PCB board reserved interface | Battery interface (specification: 1.25mm-2P) USB line interface (specification: 1.25mm-4P) |
| Case Material | Plastic ( PC ) |
| Product Size | 54 x 54 x 16.5mm |
| Package Size | 75 x 60 x 20mm |
| Product Weight | 54.8g |
| Package Weight | 83.9g |
M5Stack Core2 V1.1 USB drive
Note: M5Stack Core2 currently has two CH9102F A USB chip version, users can install the drivers (
CH9102) that are compatible with two ICs at the same time to ensure that the device drivers work normally.Learn
Power Management
Power Off: Press and hold the M5Stack Core2 left power button for 4 seconds.
Reset: Press the RST button on the bottom side once.
Expansion Modules/Compatibility
M5Stack Core2 V1.1 Schematics
PinMap
LCD & TF card(LCD :320x240 TF card Maximum size 16GB)
| ESP32 Chip | GPIO38 | GPIO23 | GPIO18 | GPIO5 | GPIO15 | |||
|---|---|---|---|---|---|---|---|---|
| AXP2101 Chip | AXP_ALDO2 | AXP_BLDO1 | AXP_ALDO4 | |||||
| ILI9342C | MISO | MOSI | SCK | CS | DC | RST | BL | PWR |
| ESP32 Chip | GPIO38 | GPIO23 | GPIO18 | GPIO4 |
|---|---|---|---|---|
| TF Card | MISO | MOSI | SCK | CS |
CAP.TOUCH (I2C Addr: 0x38)
| ESP32 chip | GPIO21 | GPIO22 | GPIO39 | |
|---|---|---|---|---|
| AXP2101 | AXP_ALDO2 | |||
| FT6336U | SDA | SCL | INT | RST |
Mic & NS4168(Speaker)
| ESP32 Chip | GPIO12 | GPIO0 | GPIO2 | AXP_ALDO3 | GPIO34 |
|---|---|---|---|---|---|
| NS4168 | BCLK | LRCK | DATA | SPK_EN | |
| Mic | CLK | DATA |
AXP Power Indicator Light
| AXP2101 | VRTC | DLDO1 |
|---|---|---|
| Bule LED | Vcc | |
| Vibration motor | Vcc |
RTC
| ESP32 Chip | GPIO21 | GPIO22 | |
|---|---|---|---|
| AXP2101 | AXP_IRQ | ||
| BM8563 | SDA | SCL | INT |
IMU(3-axis gyroscope & 3-axis accelerometer)
| ESP32 Chip | GPIO21 | GPIO22 |
|---|---|---|
| MPU6886 | SDA | SCL |
USB to serial chip
| ESP32 Chip | GPIO1 | GPIO3 |
|---|---|---|
| CH9102F | RXD | TXD |
Internal I2C connection
| ESP32 Chip | GPIO21 | GPIO22 |
|---|---|---|
| MPU6886 | SDA | SCL |
| AXP2101 | SDA | SCL |
| BM8563 | SDA | SCL |
| FT6336U | SDA | SCL |
| INA3221 | SDA | SCL |
M5PORT DEFINE
| PORT | PIN | NOTE: |
|---|---|---|
| PORT-A(Red) | G32/33 | I2C |
| PORT-B(Black) | G26/36 | DAC/ADC |
| PORT-C(Bule) | G13/14 | UART |
ESP32 ADC/DAC(For more information about Pin assignment and Pin Remapping, Please refer to ESP32 Datasheet )
| ADC1 | ADC2 | DAC1 | DAC2 |
|---|---|---|---|
| 8 Channels | 10 Channels | 2 Channels | 2 Channels |
| G32-39 | G0/2/4/12-15/25-27 | G25 | G26 |
M5Stack Core2 v1.1 M-BUS Schematic diagram
M5Stack Core2 v1.1 BUS
Model Size
M5Stack Core2 V1.1 Softwares
Arduino
Platform.IO
[env:m5stack-core2]
platform = espressif32@6.3.2
board = m5stack-core-esp32
framework = arduino
upload_speed = 1500000
monitor_speed = 115200
build_flags =
-DBOARD_HAS_PSRAM
-mfix-esp32-psram-cache-issue
-DCORE_DEBUG_LEVEL=5
lib_deps =
M5Unified=https://github.com/m5stack/M5Unified
USB Driver
CH9102 version. After decompressing the package, select the installation package corresponding to your operating system's bit version for installation. (If you are unsure which USB chip your device uses, you can install both drivers. During the installation of CH9102_VCP_SER_MacOS v1.7, an error may occur, but the installation is actually complete and can be ignored.) If you encounter issues such as failure to download programs properly (e.g., timeout or "Failed to write to target RAM"), try reinstalling the device driver.| Driver Name | Supported Chip | Download Link |
|---|---|---|
| CH9102_VCP_SER_Windows | CH9102 | Download |
| CH9102_VCP_SER_MacOS v1.7 | CH9102 | Download |
Version Change
| Release Date | Product Changes | Notes |
|---|---|---|
| / | First ReleaseCore2 | / |
| 2023.11 | M5Stack Core2 v1.1 | Change PMU power management chip to AXP2101+INA3221/ Add RTC power battery/The power indicator changes to blue |
Version Comparison
1. The power management solution has been updated from M5Stack Core2 (AXP192) to M5Stack Core2 v1.1 (AXP2101+INA3221). The IDs of AXP192 and AXP2101 are different, and the program uses this as a marker to distinguish between versions.
2. The power indicator light has been changed from green to blue.
3. Added a backup battery for the RTC chip to ensure accurate timing even when the device is powered off.
Effective Date: March 27, 2025
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