Store Wi-Fi network details - Arduino and ESP8266

Using Arduino Networking, Protocols, and Devices
1

Hi to all,

I would like to make my Arduino UNO + ESP8266 connect to different Wi-Fi networks without having to upload new code everytime.

At the moment, the Wi-Fi ssid and password are hard coded into the code and I need to change them everytime I want to connect to a different Wi-Fi network.

Is it possible to configure the ESP8266 to receive the new Wi-Fi data from a web page?
Should I use a sdcard to store the details in a TXT file and then read them from Arduino?

Thank you!

2

Thank you for your answer.

Is there any tutorial I can read to understand how to implement this?

Moreover, how can I write data to the eeprom? from a web page?

3

marcusbarnet:
Thank you for your answer.

Is there any tutorial I can read to understand how to implement this?

Moreover, how can I write data to the eeprom? from a web page?

how do you use the esp8266 with Uno? two sketches? AT firmware? other firmware?

4

Juraj:
how do you use the esp8266 with Uno? two sketches? AT firmware? other firmware?

With SoftwareSerial and AT commands.

5

and what do you want to achieve?
you take the arduino to some location and want to connect it to a local WiFi network?
start SoftAP on esp8266. there are AT commands for it. see the reference.
and then you can serve a page with a form and process the form submit with the credentials.
then you call AT+CWJAP_DEF and the esp8266 remembers it and will connect to that AP after every restart.
then you code a test if it is connected and if not, you again start the softAP with the configuration web page