外设 API *************** :link_to_translation:`en:[English]` .. toctree:: :maxdepth: 1 ADC :SOC_DAC_PERIPH_NUM: DAC GPIO (包括 RTC 低功耗 I/O) :SOC_DEDICATED_GPIO_SUPPORTED: 专用 GPIO :esp32s2: HMAC :esp32s2: Digital Signature I2C I2S LED Control :SOC_MCPWM_SUPPORTED: MCPWM :SOC_PCNT_SUPPORTED: Pulse Counter Remote Control :SOC_SDMMC_HOST_SUPPORTED: SDMMC Host SD SPI Host :SOC_SDIO_SLAVE_SUPPORTED: SDIO Slave Sigma-delta Modulation SPI Master SPI Slave :esp32: Secure Element :esp32s2: SPI Slave 半双工 (half duplex) :esp32s2: Temp sensor Timer :SOC_TOUCH_SENSOR_NUM: Touch Sensor :esp32s2: Touch Element TWAI UART :SOC_USB_SUPPORTED: USB 本部分的 API 示例代码存放在 ESP-IDF 示例项目的 :example:`peripherals` 目录下。