Primary Git Repository for the Zephyr Project. Zephyr is a new generation, scalable, optimized, secure RTOS for multiple hardware architectures.
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.. zephyr:board:: m5stack_atom_lite
Overview
********
M5Stack ATOM Lite is an ESP32-based development board from M5Stack.
It features the following integrated components:
- ESP32-PICO-D4 chip (240MHz dual core, Wi-Fi/BLE 5.0)
- 520KB SRAM
- SK6812 RGB LED
- Infrared LED
- 1x Grove extension port
Supported Features
==================
.. zephyr:board-supported-hw::
Start Application Development
*****************************
Before powering up your M5Stack ATOM Lite, 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:: shell
west blobs fetch hal_espressif
.. note::
It is recommended running the command above after :file:`west update`.
Building & Flashing
-------------------
.. zephyr:board-supported-runners::
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_atom_lite/esp32/procpu
:goals: build
The usual ``flash`` target will work with the ``m5stack_atom_lite`` board
configuration. Here is an example for the :zephyr:code-sample:`hello_world`
application.
.. zephyr-app-commands::
:zephyr-app: samples/hello_world
:board: m5stack_atom_lite/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 <BAUD>`` 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_atom_lite
Debugging
---------
M5Stack ATOM Lite debugging is not supported due to pinout limitations.
Related Documents
*****************
- `M5Stack ATOM Lite docs <https://docs.m5stack.com/en/core/ATOM%20Lite>`_
- `M5Stack ATOM Lite schematic <https://static-cdn.m5stack.com/resource/docs/products/core/atom_lite/atom_lite_map_01.webp>`_
- `ESP32-PICO-D4 Datasheet <https://www.espressif.com/sites/default/files/documentation/esp32-pico-d4_datasheet_en.pdf>`_ (PDF)