Hello, I want to use the ESP8266 module on arduino UNO, I want to do a simple program (Control LED through WIFI) the code that I want to write should be written on UNO or on ESP8266 itself ?
Either, you don't need both the Uno and the esp to blink a led.
any particular reason to use a UNO ? what is it doing?
cannot you do everything required on the ESP8266?
which ESP8266 are you using?
I need the UNO to blink LED. But how should I configure Module to join WIFI and communicate with the uno ??
I only have esp8266 module not board like NODEMCU
is it an ESP-01? you can always attach a LED to an ESP-01
It is 01 Yes but I need it to work with UNO I don't wanna attach LED to it
you could use a serial connection
you have to be careful the Uno uses 5V logic the ESP-01 3.3V so on the UNO Tx line to the ESP-01 Rx you need a potential divider
I think the question is not how, it is why? The Uno can blink the led without the esp.
It is not just a blink program maybe I want to turn on or off led through WIFI
Okay but where should I embedd code ??
Is this a serious question?
Can you see how posting these words could confuse forum members who are trying to help you?
I edit it sorry
You would do better to get an 8266 board like the nodemcu or a wemos.
This forum is filled with posts of people struggling with adding a -01 module to an Uno.
@cattledog gives good advice! Wi-Fi Access point, static IP, web-server and remote GPIO control is an example of a webpage controlling a LED
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