Here is where the Libraries API's descriptions are located:
Currently, the Arduino ESP32 supports the following peripherals with Arduino APIs.
| Peripheral | ESP32 | ESP32-S2 | ESP32-C3 | Comments |
|---|---|---|---|---|
| ADC | Yes | Yes | Yes | |
| Bluetooth | Yes | Not Supported | Not Supported | Bluetooth Classic |
| BLE | Yes | Not Supported | Yes | |
| DAC | Yes | Yes | Not Supported | |
| Ethernet | Yes | Not Supported | Not Supported | (*) |
| GPIO | Yes | Yes | Yes | |
| Hall Sensor | Yes | Not Supported | Not Supported | |
| I2C | Yes | Yes | Yes | |
| I2S | No | No | No | WIP |
| LEDC | Yes | Yes | Yes | |
| Motor PWM | No | Not Supported | Not Supported | |
| Pulse Counter | No | No | No | |
| RMT | Yes | Yes | Yes | |
| SDIO | No | No | No | |
| SPI | Yes | Yes | Yes | |
| Timer | Yes | Yes | Yes | |
| Temp. Sensor | Not Supported | Yes | Yes | |
| Touch | Yes | Yes | Not Supported | |
| TWAI | No | No | No | |
| UART | Yes | Yes | Yes | |
| USB | Not Supported | Yes | Yes | ESP32-C3 only CDC/JTAG |
| Wi-Fi | Yes | Yes | Yes |
(*) SPI Ethernet is supported by all ESP32 families and RMII only for ESP32.
Note
Some peripherals are not available for all ESP32 families. To see more details about it, see the corresponding SoC at Product Selector page.
The Arduino ESP32 offers some unique APIs, described in this section:
.. toctree::
:maxdepth: 1
Bluetooth <api/bluetooth>
Deep Sleep <api/deepsleep>
ESPNOW <api/espnow>
GPIO <api/gpio>
I2C <api/i2c>
RainMaker <api/rainmaker>
Reset Reason <api/reset_reason>
Wi-Fi <api/wifi>