74 lines
2.7 KiB
Markdown
74 lines
2.7 KiB
Markdown
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# WiFiScan Example
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This example demonstrates how to use the WiFi library to scan available WiFi networks and print the results.
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# Supported Targets
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Currently this example supports the following targets.
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| Supported Targets | ESP32 | ESP32-S2 | ESP32-C3 |
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| ----------------- | ----- | -------- | -------- |
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## How to Use Example
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* How to install the Arduino IDE: [Install Arduino IDE](https://github.com/espressif/arduino-esp32/tree/master/docs/arduino-ide).
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#### Using Arduino IDE
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* Before Compile/Verify, select the correct board: `Tools -> Board`.
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* Select the COM port: `Tools -> Port: xxx` where the `xxx` is the detected COM port.
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#### Using Platform IO
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* Select the COM port: `Devices` or setting the `upload_port` option on the `platformio.ini` file.
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## Example/Log Output
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```
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ets Jul 29 2019 12:21:46
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rst:0x1 (POWERON_RESET),boot:0x13 (SPI_FAST_FLASH_BOOT)
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configsip: 0, SPIWP:0xee
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clk_drv:0x00,q_drv:0x00,d_drv:0x00,cs0_drv:0x00,hd_drv:0x00,wp_drv:0x00
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mode:DIO, clock div:1
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load:0x3fff0030,len:1412
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load:0x40078000,len:13400
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load:0x40080400,len:3672
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entry 0x400805f8
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Setup done
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scan start
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scan done
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17 networks found
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1: IoTNetwork (-62)*
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2: WiFiSSID (-62)*
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3: B3A7992 (-63)*
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4: WiFi (-63)
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5: IoTNetwork2 (-64)*
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...
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```
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## Troubleshooting
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***Important: Be sure you're using a good quality USB cable and you have enought power source for your project.***
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* **Programming Fail:** If the programming/flash procedure fails, try to reduce the serial connection speed.
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* **COM port not detected:** Check the USB cable connection and the USB to Serial driver installation.
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If the error persist, you can ask help at the official [ESP32 forum](https://esp32.com) or see [Contribute](#contribute).
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## Contribute
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To know how to contribute to this project, see [How to contribute.](https://github.com/espressif/arduino-esp32/blob/master/CONTRIBUTING.rst)
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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!
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Before creating a new issue, be sure to try the Troubleshooting and to check if the same issue was already created by someone else.
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## Resources
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* Arduino-ESP32 Official Repository: [espressif/arduino-esp32](https://github.com/espressif/arduino-esp32)
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* ESP32 Datasheet: [Link to datasheet](https://www.espressif.com/sites/default/files/documentation/esp32_datasheet_en.pdf)
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* ESP32-S2 Datasheet: [Link to datasheet](https://www.espressif.com/sites/default/files/documentation/esp32-s2_datasheet_en.pdf)
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* ESP32-C3 Datasheet: [Link to datasheet](https://www.espressif.com/sites/default/files/documentation/esp32-c3_datasheet_en.pdf)
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* Official ESP-IDF documentation: [ESP-IDF](https://idf.espressif.com)
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