I am using ESP8266 module with Arduino Uno.I don't know how to get the signal strength of the network with which ESP8266 is connected.Please help..


1 Answer 1


The page http://tomeko.net/other/ESP8266/ names the following command:

AT+CWLAP // list available access points

According to the example given there, this returns a list of items looking like this:


where "APs are sorted by channel and values are: (security, "name", signal strength, MAC, channel) where for security: 0 = open, 1 = WEP, 3 = WPA, 4 = WPA2".

Thus you can use AT+CWJAP? to obtain the name of the network you're connected to and get the signal strength from the respective item in the list provided by AT+CWLAP.

See http://wiki.iteadstudio.com/ESP8266_Serial_WIFI_Module for a reference of commands.

  • The security is wrong. Correct are (according to the documentation 0.2 from March 20, 2015): 0 = open, 1 = WEP, 2 = WPA_PSK, 3 = WPA2_PSK, 4 = WPA_WPA2_PSK.
    – Thomas S.
    Sep 19, 2015 at 19:36

Your Answer

By clicking “Post Your Answer”, you agree to our terms of service and acknowledge you have read our privacy policy.

Not the answer you're looking for? Browse other questions tagged or ask your own question.