(See the README.md file in the upper level 'examples' directory for more information about examples.)
This example shows how to use ADC Continuous Read Mode (DMA Mode) to read from GPIO pins via on-chip ADC module(s).
## How to use example
### Hardware Required
* A development board with ESP32, ESP32-S and ESP32-C SoC
* A USB cable for power supply and programming
Please refer to the `channel` array defined in `adc_dma_example_main.c`. These GPIOs should be connected to voltage sources (0 ~ 3.3V). If other ADC unit(s) / channel(s) are selected in your application,
feel free to modify these definitions.
### Configure the project
```
idf.py menuconfig
```
### Build and Flash
Build the project and flash it to the board, then run monitor tool to view serial output:
```
idf.py -p PORT flash monitor
```
(To exit the serial monitor, type ``Ctrl-]``.)
See the Getting Started Guide for full steps to configure and use ESP-IDF to build projects.
## Example Output
Running this example, you will see the following log output on the serial monitor:
