how to update (mirrored) the status of digital input on the remote side if both esp8266 connected over same wifi and kept far to each other.
I need to develop the digital I/O extension using ESP8266.
Digital input conditions are mirrored are extended across wifi and mirrored at the other end simultaneously.
Image for reference: https://www.perle.com/images/digital-io-extension-img01.jpg
Kindly guide me
Hi Akash,
welcome to the arduino-user-forum.
on your picture the closed contact isn't closed.
sending and receiving data between two ESP8266 that are connected to the same WiFi can be done by using UDP or HTTP
UDP works this way: send and forget
This means if you want to make sure that the sender is informed that the data was really received you have to add code that sends some kind of acknowledge back to the sender
best regards Stefan