82 lines
2.2 KiB
Markdown
82 lines
2.2 KiB
Markdown
# 04_esp-idf-arduino
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There is no schematic for this example, it simply prints some output to the serial monitor at 115200.
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This is more of a build system example for untethering yourself from the Arduino IDE.
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To build this example you can run the following commands.
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```bash
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# See Dependencies section below for instructions.
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source ~/path/to/esp-idf/export.sh
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mkdir build
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cd build
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cmake ..
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make -j $(nproc)
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# Flash the example to the ESP.
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make flash
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# Check the serial monitor for 'Hello world!' output.
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idf.py monitor -b 115200
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```
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To flash to your ESP or access the `idf.py menuconfig` menu from the ESP-IDF you can run the same commands with `make`.
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```bash
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make flash
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make menuconfig
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```
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If Ninja is preferred:
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```bash
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mkdir build
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cd build
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cmake .. -G Nina
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ninja
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```
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## Dependencies
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Install the [ESP-IDF](https://github.com/espressif/esp-idf?tab=readme-ov-file#setup-build-environment)
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```bash
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# https://docs.espressif.com/projects/esp-idf/en/v5.3.2/esp32/get-started/linux-macos-setup.html#for-linux-users
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sudo apt-get install -y git wget flex bison gperf python3 python3-pip python3-venv cmake ninja-build ccache libffi-dev libssl-dev dfu-util libusb-1.0-0
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git clone -b v5.3.2 --recursive https://github.com/espressif/esp-idf
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cd esp-idf
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./install.sh
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. ./export.sh
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```
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In CLion there is an official [Serial Monitor](https://plugins.jetbrains.com/plugin/8031-serial-port-monitor) plugin, or use ESP-IDF -
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```bash
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idf.py monitor -b 115200
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```
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## Starting Over
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To set up this project from scratch the following commands were used
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```bash
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# My example project directory
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cd ~/Code/klips/esp/cpp/04_esp-idf-arduino
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idf.py set-target esp32
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idf.py add-dependency "espressif/arduino-esp32^3.1.1"
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# Autostart Arduino for use of `loop()` and `setup()` functions
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# You can also use the esp-idf `app_main()` function if preferred
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# https://docs.espressif.com/projects/arduino-esp32/en/latest/esp-idf_component.html#configuration
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# You can alternatively do this in the GUI tool `idf.py menuconfig`
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echo "CONFIG_AUTOSTART_ARDUINO=y" >> sdkconfig
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sed -i -e 's/CONFIG_FREERTOS_HZ=100/CONFIG_FREERTOS_HZ=1000/' sdkconfig
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# Build the project
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idf.py build
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```
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To set this project up in CLion, see [JetBrains documentation](https://www.jetbrains.com/help/clion/esp-idf.html#env-vars).
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