# esp-idf-lib/mcp23x17 [](https://github.com/esp-idf-lib/mcp23x17/actions/workflows//build.yml) [](https://github.com/esp-idf-lib/mcp23x17/actions/workflows//build-docs.yml) [](https://github.com/esp-idf-lib/mcp23x17/actions/workflows//validate-component.yml) Driver for I2C/SPI 16 bit GPIO expanders MCP23017/MCP23S17. * [Documentation](https://esp-idf-lib.github.io/mcp23x17/) * [Repository](https://github.com/esp-idf-lib/mcp23x17) * [Issues](https://github.com/esp-idf-lib/mcp23x17/issues) * [Discussions and questions](https://github.com/esp-idf-lib/core/discussions) * [Component page at the ESP Component Registry](https://components.espressif.com/components/esp-idf-lib/mcp23x17) ## Installation ```sh idf.py add-dependency esp-idf-lib/mcp23x17 ``` ## Support For questions and discussions about the component, please use [Discussions](https://github.com/esp-idf-lib/core/discussions) at [esp-idf-lib/core](https://github.com/esp-idf-lib/core). ## Contributing Please read [CONTRIBUTING.md](https://github.com/esp-idf-lib/core/blob/main/CONTRIBUTING.md) at [esp-idf-lib/core](https://github.com/esp-idf-lib/core).
ce890ff1c81a0266e4d14050c9883371dc1d079a
idf.py add-dependency "esp-idf-lib/mcp23x17^1.1.7"