Peripherals API *************** .. toctree:: :maxdepth: 1 ADC DAC GPIO (including RTC low power I/O) I2C I2S LED Control Pulse Counter SD/MMC Card Host <../storage/sdmmc> Sigma-delta Modulation SPI Master SPI Slave Remote Control Timer UART Example code for this API section is provided in :example:`peripherals` directory of ESP-IDF examples.