Connecting to the Proper Wifi Network (on 2.4 GHz)

[bshambaugh]

Q: How do I know if the WiFi Network that I am connecting to is 2.4 GHz or 5.8 GHz?

A: Well, your laptop can see and connect to 2.4 and 5.8 GHz networks. The ESP32 can only see and connect to 2.4GHz networks.
To see what networks are available to the ESP32

Use:
Example from WiFi > WiFiScan : https://randomnerdtutorials.com/esp32-useful-wi-fi-functions-arduino/

or
https://www.upesy.com/blogs/tutorials/how-to-connect-wifi-acces-point-with-esp32

If you cannot find a useful network try a SoftAP
https://randomnerdtutorials.com/esp32-access-point-ap-web-server/

A. To connect the the network of your choice, without changing the SSID and password in ESP32 code use a wifi manager
https://randomnerdtutorials.com/esp32-wi-fi-manager-asyncwebserver/
references: https://github.com/littlefs-project/littlefs (seeAlso: https://github.com/pellepl/spiffs but LittleFS is the replacement
see: https://www.youtube.com/watch?v=4r6YZlLfKfw)
or https://dronebotworkshop.com/wifimanager/ , https://github.com/tzapu/WiFiManager

A. Use your laptop as a bridge between the SoftAP point network and the Internet
https://askubuntu.com/questions/488588/how-do-i-connect-to-multiple-wifi-networks
https://www.cyberciti.biz/tips/linux-find-out-wireless-network-speed-signal-strength.html

A. Scan it all using https://www.instructables.com/RTL8720DN/