.. _m5stack_core2: M5Stack Core2 ############# Overview ******** M5Stack Core2 is an ESP32-based development board from M5Stack. It is the successor for the Core module. M5Stack Core2 features the following integrated components: - ESP32-D0WDQ6-V3 chip (240MHz dual core, 600 DMIPS, 520KB SRAM, Wi-Fi) - PSRAM 8MB - Flash 16MB - LCD IPS TFT 2", 320x240 px screen (ILI9342C) - Touch screen (FT6336U) - PMU AXP192 - Audio NS4168 amplifier (1W-092 speaker) - Vibration motor - RTC BM8563 - USB CP2104 - SD-Card slot - Grove connector - IMO 6-axis IMU MPU6886 - MIC SPM1423 - Battery 390mAh 3,7V .. figure:: img/m5stack_core2.webp :align: center :alt: M5Stack-Core2 :width: 400 px M5Stack-Core2 module Functional Description ********************** The following table below describes the key components, interfaces, and controls of the M5Stack Core2 board. .. _M5Core2 Schematic: https://m5stack.oss-cn-shenzhen.aliyuncs.com/resource/docs/schematic/Core/CORE2_V1.0_SCH.pdf .. _MPU-ESP32: https://m5stack.oss-cn-shenzhen.aliyuncs.com/resource/docs/datasheet/core/esp32_datasheet_en_v3.9.pdf .. _TOUCH-FT6336U: https://m5stack.oss-cn-shenzhen.aliyuncs.com/resource/docs/datasheet/core/Ft6336GU_Firmware%20外部寄存器_20151112-%20EN.xlsx .. _SND-NS4168: https://m5stack.oss-cn-shenzhen.aliyuncs.com/resource/docs/datasheet/core/NS4168_CN_datasheet.pdf .. _MPU-6886: https://m5stack.oss-cn-shenzhen.aliyuncs.com/resource/docs/datasheet/core/MPU-6886-000193%2Bv1.1_GHIC_en.pdf .. _LCD-ILI9342C: https://m5stack.oss-cn-shenzhen.aliyuncs.com/resource/docs/datasheet/core/ILI9342C-ILITEK.pdf .. _SPM-1423: https://m5stack.oss-cn-shenzhen.aliyuncs.com/resource/docs/datasheet/core/SPM1423HM4H-B_datasheet_en.pdf .. _RTC-BM8563: https://m5stack.oss-cn-shenzhen.aliyuncs.com/resource/docs/datasheet/core/BM8563_V1.1_cn.pdf .. _SY7088: https://m5stack.oss-cn-shenzhen.aliyuncs.com/resource/docs/datasheet/core/SY7088-Silergy.pdf .. _PMU-AXP192: https://m5stack.oss-cn-shenzhen.aliyuncs.com/resource/docs/datasheet/core/AXP192_datasheet_en.pdf .. _VIB-1072_RFN01: https://m5stack.oss-cn-shenzhen.aliyuncs.com/resource/docs/datasheet/core/1027RFN01-33d.pdf +------------------+--------------------------------------------------------------------------+-----------+ | Key Component | Description | Status | +==================+==========================================================================+===========+ | ESP32-D0WDQ6-V2 | This `MPU-ESP32`_ module provides complete Wi-Fi and Bluetooth | supported | | module | functionalities and integrates a 16-MB SPI flash. | | +------------------+--------------------------------------------------------------------------+-----------+ | 32.768 kHz RTC | External precision 32.768 kHz crystal oscillator serves as a clock with | supported | | | low-power consumption while the chip is in Deep-sleep mode. | | +------------------+--------------------------------------------------------------------------+-----------+ | Status LED | One user LED connected to the GPIO pin. | supported | +------------------+--------------------------------------------------------------------------+-----------+ | USB Port | USB interface. Power supply for the board as well as the | supported | | | communication interface between a computer and the board. | | | | Contains: TypeC x 1, GROVE(I2C+I/O+UART) x 1 | | +------------------+--------------------------------------------------------------------------+-----------+ | Reset button | Reset button | supported | +------------------+--------------------------------------------------------------------------+-----------+ | Power Switch | Power on/off button. | supported | +------------------+--------------------------------------------------------------------------+-----------+ | LCD screen | Built-in LCD TFT display \(`LCD-ILI9342C`_, 2", 320x240 px\) | supported | | | controlled via SPI interface | | +------------------+--------------------------------------------------------------------------+-----------+ | SD-Card slot | SD-Card connection via SPI-mode. | supported | +------------------+--------------------------------------------------------------------------+-----------+ | 6-axis IMU | The `MPU-6886`_ is a 6-axis motion tracker (6DOF IMU) device that | supported | | MPU6886 | combines a 3-axis gyroscope and a 3-axis accelerometer. | | | | For details please refer to :ref:`m5stack_core2_ext` | | +------------------+--------------------------------------------------------------------------+-----------+ | Grove port | Note: Grove port requires 5V to be enabled via `bus_5v` regulator | supported | +------------------+--------------------------------------------------------------------------+-----------+ | Built-in | The `SPM-1423`_ I2S driven microphone. | todo | | microphone | | | +------------------+--------------------------------------------------------------------------+-----------+ | Built-in speaker | 1W speaker for audio output via I2S interface. | todo | +------------------+--------------------------------------------------------------------------+-----------+ | Battery-support | Power supply via battery is supported automatically. But there is no | todo | | | possibility to query current battery status. | | +------------------+--------------------------------------------------------------------------+-----------+ Power supply ============ M5Stack Core2 module is equipped with the feature-rich power management IC (:dtcompatible:`x-powers,axp192-regulator`). Following regulators are utilized on this module: - **vdd_mcu**: Main power supply for the MCU. - **lcd_bg**: Display backlight voltage. - **v_peri**: Periphal supply. This regulator controls supply for the display, SD-Card. - **vib_motor**: Vibration motor regulator. - **bus_5v** BUS_5V supply for Grove port. Note: This fixed regulator supply is disabled by default. These voltages can be controlled via regulator api. Supported Features ================== The Zephyr m5stack_core2 board configuration supports the following hardware features: +-----------+------------+-------------------------------------+ | Interface | Controller | Driver/Component | +===========+============+=====================================+ | NVIC | on-chip | nested vector interrupt controller | +-----------+------------+-------------------------------------+ | UART | on-chip | serial port-polling; | | | | serial port-interrupt | +-----------+------------+-------------------------------------+ | PINMUX | on-chip | pinmux | +-----------+------------+-------------------------------------+ | GPIO | on-chip | gpio | +-----------+------------+-------------------------------------+ | I2C | on-chip | i2c | +-----------+------------+-------------------------------------+ | SPI | on-chip | spi | +-----------+------------+-------------------------------------+ | CLOCK | on-chip | reset and clock control | +-----------+------------+-------------------------------------+ | COUNTER | on-chip | rtc | +-----------+------------+-------------------------------------+ | WATCHDOG | on-chip | independent watchdog | +-----------+------------+-------------------------------------+ | PWM | on-chip | pwm | +-----------+------------+-------------------------------------+ | ADC | on-chip | adc | +-----------+------------+-------------------------------------+ | DAC | on-chip | dac | +-----------+------------+-------------------------------------+ | die-temp | on-chip | die temperature sensor | +-----------+------------+-------------------------------------+ Start Application Development ***************************** Before powering up your M5Stack Core2, please make sure that the board is in good condition with no obvious signs of damage. System requirements =================== Prerequisites ------------- Espressif HAL requires WiFi and Bluetooth binary blobs in order work. Run the command below to retrieve those files. .. code-block:: console west blobs fetch hal_espressif .. note:: It is recommended running the command above after :file:`west update`. Building & Flashing ------------------- Build and flash applications as usual (see :ref:`build_an_application` and :ref:`application_run` for more details). .. zephyr-app-commands:: :zephyr-app: samples/hello_world :board: m5stack_core2/esp32/procpu :goals: build The usual ``flash`` target will work with the ``m5stack_core2`` board configuration. Here is an example for the :ref:`hello_world` application. .. zephyr-app-commands:: :zephyr-app: samples/hello_world :board: m5stack_core2/esp32/procpu :goals: flash The baud rate of 921600bps is set by default. If experiencing issues when flashing, try using different values by using ``--esp-baud-rate `` option during ``west flash`` (e.g. ``west flash --esp-baud-rate 115200``). You can also open the serial monitor using the following command: .. code-block:: shell west espressif monitor After the board has automatically reset and booted, you should see the following message in the monitor: .. code-block:: console ***** Booting Zephyr OS vx.x.x-xxx-gxxxxxxxxxxxx ***** Hello World! m5stack_core2 Debugging --------- M5Stack Core2 debugging is not supported due to pinout limitations. Related Documents ***************** - `M5Stack-Core2 schematic `_ (PDF) - `ESP32-PICO-D4 Datasheet `_ (PDF) - `M5StickC PLUS docs `_ - `ESP32 Datasheet `_ (PDF) - `ESP32 Hardware Reference `_