# lib

This project does not keep private PlatformIO libraries here. SwitchBank's
library headers are in `../src`, and the MCP23017 examples pull their external
dependency from `lib_deps` in `../platformio.ini`.

Target note:

- ESP32-S3 is the primary hardware-tested target for the current examples.
- The MCP23017 examples are Arduino + I2C examples, not ESP32-only code, but I2C pin choices, pullups, and bus setup remain board-specific.
- Other configured boards are useful compile checks; treat them as build coverage until you verify real hardware behavior.
