I tried it but the the serial monitor did not display anything.
Did you follow the directions at HERE
yes I followed but it doesn't work.
Did you get the same output on the Serial monitor?
what Tools>Board have you selected?
I tend to use 'Generic ESP8266 Module'
what particular ESP8266 module are you using?
have you set the serial monitor baudrate to 115200?
No. I didn't get anything
Then you are not runing the same sketch. Bye.
have you selected Tools>Serial Monitor to get the Serial monitor display?
But 'Server Started' doesn't display.
if you are just getting ......... displayed it is not connecting to the WiFi network
check the network SSID and password?
EDIT: is it a 2.5GHz network - the ESP8266 will not work with 5GHz networks
No I run it
Sorry. I did not understand what you said. How can I test SSID and password?
And اow can I check whether it is 2.5 or 5.
do you connect anything else to the network? e.g. the smartphone?
/* Define WiFi Credentials */
const char* ssid = "hash";/* Your SSID */
const char* password = "12345678";/* Your Password*/
not sure how to check for 2.5/5GHz networks
my network modem monitor displays connections, e.g. ethernet, 2.5GHz and 5GHz IP address etc
No I don't connect anything to the network. And I can't recognize it with smartphone.
where did you get the SSID and password from?
/* Define WiFi Credentials */
const char* ssid = "hash";/* Your SSID */
const char* password = "12345678";/* Your Password*/
From a learning video on YouTube.
to connect to a local WiFi network you need the SSID (network name) and password
do you have a local WiFi network?
No I haven't local WiFi network. Nothing is said about it in the video.