Core2 v1.1

SKU:K010-V11

Description

Core2 v1.1 is the iterative version of the second-generation host in the M5Stack development kit series, further enhancing the functionality based on the original generation host. It features a power management chip solution of AXP2101+INA3221, offering more comprehensive hardware functions, adding an RTC battery to meet the needs of low-power applications and precise timing functions. Its core controller is equipped with an ESP32-D0WDQ6-V3, featuring two independently controllable Xtensa® 32-bit LX6 processors, with a main frequency of up to 240Mhz, supporting WiFi functionality, and onboard 16MB Flash and 8MB PSRAM. Programs can be downloaded via the TYPE-C interface, and the robust configuration meets the resource demands of complex applications. The front is equipped with a 2.0-inch integrated capacitive touch screen, providing users with a smoother human-computer interaction experience.

The body has a built-in vibration motor, providing tactile feedback and vibration alert functions. The built-in RTC module and battery dedicated to RTC power supply offer precise timing functions. The power section features an AXP2101 power management chip for effective control of body power consumption, with a built-in blue power indicator light. Additionally, the body is equipped with a TF-card (microSD) slot and speaker. To ensure higher quality sound effects, an I2S digital audio interface amplifier chip is used to effectively prevent signal distortion. The left side and bottom of the body have independent power and reset (RST) buttons, and the three dots on the front of the screen are part of the touch screen, which can be programmed to map hot zones as three virtual buttons. The expansion board on the back of the body integrates a 6-axis IMU sensor and microphone.

Tutorial

UIFlow

UIFlow

This tutorial will introduce you to controlling the Core2 v1.1 device through the UIFlow graphical programming platform

UIFlow 2.0

UIFlow 2.0

This tutorial will introduce you to controlling the Core2 v1.1 device through the UIFlow 2.0 graphical programming platform

Arduino IDE

Arduino IDE

This tutorial will introduce you to controlling the Core2 v1.1 device through Arduino IDE programming

Features

• Developed based on ESP32, supports WiFi
• 16M Flash, 8M PSRAM
• Built-in speaker, power indicator light, vibration motor, RTC, I2S amplifier, capacitive touch screen, power button, reset button
• TF card slot (supports up to 16GB)
• Built-in lithium battery, equipped with a power management chip
• Independent board with built-in 6-axis IMU, PDM microphone
• M-Bus interface
• Compatible with multi-platform development:
  • UIFlow
  • MicroPython
  • Arduino
  • .NET nanoFramework
  • Expandable real-time operating system (RTOS): zephyr

Includes

• 1 x Core2 V1.1
• 1 x USB Type-C cable (20cm)
• 1 x Hex wrench

Applications

• IoT controller
• STEM education
• DIY projects
• Smart home devices

Specifications

Learn

Power Management

Expansion Module/Compatibility

Schematics

• Core2 v1.1 Schematics PDF

1/5

PinMap

LCD & TF card (LCD: 320x240 TF card Maximum size 16GB)

CAP.TOUCH (I2C Addr: 0x38)

Mic & NS4168 (Speaker)

AXP Power Indicator Light

RTC

IMU (3-axis gyroscope & 3-axis accelerometer)

USB to serial chip

Internal I2C connection

M5PORT DEFINE

ESP32 ADC/DAC (For more information on pin allocation and pin remapping, refer to the ESP32 Datasheet )

Core2 v1.1 M-BUS Diagram

Core2 v1.1 BUS (Compared with M5Stack)

Model Size

Datasheets

• ESP32
• FT6336U
• NS4168
• MPU6886
• ILI9342C
• SPM1423
• BM8563
• SY7088
• AXP2101
• 1027DC Motor
• INA3221

Softwares

Arduino

• Core2 v1.1 Arduino Library
• M5GFX Library
• M5Unified Library

PlatformIO

[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

Easyloader

USB Driver

Video

• This example will perform hardware operation tests for the speaker, wifi, buttons, accelerometer, tf card (microSD), screen, etc.

Version Change

AXP2101 (Core2 v1.1) and AXP192 (Core2) Parameter Comparison

FAQ

Q: If the memory card fails to read, you can add the following code during initialization to enhance the host's memory card reading capability.

A:

for (auto gpio : (const uint8_t[]){18, 19, 23}) {
    *(volatile uint32_t*)(GPIO_PIN_MUX_REG[gpio]) |= FUN_DRV_M;
    gpio_pulldown_dis((gpio_num_t)gpio);
    gpio_pullup_en((gpio_num_t)gpio);
  }

Version Comparison