Examples šŸ’”

A set of minimal projects is provided in the examples directory. Each subfolder demonstrates the driver on a different platform.

  • arduino/ ā€“ Sketch using the Arduino Wire library.

  • esp32/ ā€“ ESP-IDF application.

  • stm32/ ā€“ STM32 HAL example.

After copying an example into your project directory, build it with the normal toolchain commands for that platform. For example idf.py build for the ESP32 or the Arduino IDE for AVR boards. Flash the resulting firmware to quickly test that the expander is working as expected.

To build an example, copy the code into your own project and adjust the IĀ²C pins and device address for your hardware. The examples mirror the instructions in Platform Integration.

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