# WiFiScan Example

This example demonstrates how to use the WiFi library to scan available WiFi networks and print the results.

# Supported Targets

Currently this example supports the following targets.

| Supported Targets | ESP32 | ESP32-S2 | ESP32-C3 |
| ----------------- | ----- | -------- | -------- |

## How to Use Example

* How to install the Arduino IDE: [Install Arduino IDE](https://github.com/espressif/arduino-esp32/tree/master/docs/arduino-ide).

#### Using Arduino IDE

* Before Compile/Verify, select the correct board: `Tools -> Board`.
* Select the COM port: `Tools -> Port: xxx` where the `xxx` is the detected COM port.

#### Using Platform IO

* Select the COM port: `Devices` or setting the `upload_port` option on the `platformio.ini` file.

## Example/Log Output

```
ets Jul 29 2019 12:21:46

rst:0x1 (POWERON_RESET),boot:0x13 (SPI_FAST_FLASH_BOOT)
configsip: 0, SPIWP:0xee
clk_drv:0x00,q_drv:0x00,d_drv:0x00,cs0_drv:0x00,hd_drv:0x00,wp_drv:0x00
mode:DIO, clock div:1
load:0x3fff0030,len:1412
load:0x40078000,len:13400
load:0x40080400,len:3672
entry 0x400805f8
Setup done
scan start
scan done
17 networks found
1: IoTNetwork (-62)*
2: WiFiSSID (-62)*
3: B3A7992 (-63)*
4: WiFi (-63) 
5: IoTNetwork2 (-64)*
...
```

## Troubleshooting

***Important: Be sure you're using a good quality USB cable and you have enought power source for your project.***

* **Programming Fail:** If the programming/flash procedure fails, try to reduce the serial connection speed.
* **COM port not detected:** Check the USB cable connection and the USB to Serial driver installation.

If the error persist, you can ask help at the official [ESP32 forum](https://esp32.com) or see [Contribute](#contribute).

## Contribute

To know how to contribute to this project, see [How to contribute.](https://github.com/espressif/arduino-esp32/blob/master/CONTRIBUTING.rst)

If you have any **feedback** or **issue** to report on this example/library, please open an issue or fix it by creating a new PR. Contributions are more than welcome!

Before creating a new issue, be sure to try the Troubleshooting and to check if the same issue was already created by someone else.

## Resources

* Arduino-ESP32 Official Repository: [espressif/arduino-esp32](https://github.com/espressif/arduino-esp32)
* ESP32 Datasheet: [Link to datasheet](https://www.espressif.com/sites/default/files/documentation/esp32_datasheet_en.pdf)
* ESP32-S2 Datasheet: [Link to datasheet](https://www.espressif.com/sites/default/files/documentation/esp32-s2_datasheet_en.pdf)
* ESP32-C3 Datasheet: [Link to datasheet](https://www.espressif.com/sites/default/files/documentation/esp32-c3_datasheet_en.pdf)
* Official ESP-IDF documentation: [ESP-IDF](https://idf.espressif.com)