I have an Arduino Uno and for Wifi an ESP8266.

My ESP8266 Firmware is


AT version:  8 2015 14:45:58)
SDK version:1.3.0
Ai-Thinker Technology Co.,Ltd.
Build: Sep 11 2015 11:48:04

baund = 115200,
 Both NL & CR

Server -- www.linysoft.com

The URL I want to send is either: http://www.linysoft.com/arduino/?light=off OR http://www.linysoft.com/arduino/?light=on.

Depending on to the link I send the result should be either ==> on or ==> off on the page http://www.linysoft.com/arduino/light.json.

Now I want to send an HTTP request (Weblink - http://www.linysoft.com/arduino/?light=on) so it can write according to that link "on" in the light.json page.

The AT command I am sending (my wifi module is connected to my wifi automatically):











Here I am getting a problem after this > I can't send **GET /arduino/?light=on**. I also tried GET /arduino/?light=on HTTP/1.0\r\n.

After putting this line in the textbox, I press the Enter button or Send Button, but nothing happens.

It is stuck here > for some time. And then it shows me:


Pin Connection

ARDUINO UNO        ESP8266
RX  -------------->  TX
TX  --------------> RX
VCC--------------> 3.3
CH_PD ----------> 3.3
GND -------------> GND
  • What technology are you using to connect to the Internet, and hence to "www.linysoft.com"? How have you checked that WiFi access point, and internet connection works? – gbulmer Jan 10 '16 at 15:32
  • Is there other solution to these problem ? – user25837 Aug 17 '16 at 11:25

linysoft.com is a virtual host. Just try going to and see that the connection is reset.

So after the GET /arduino/?light=on, you have to also send Host: www.linysoft.com (on the next line).

| improve this answer | |

The domain is missing. Try this instead:

GET http://www.linysoft.com/arduino/?light=on HTTP/1.0\r\n\r\n


Ref. http://contractorwolf.com/esp8266-wifi-arduino-micro/

| improve this answer | |

Just found out a POST wouldn't work. Try this GET request to turn on the light.

    GET /arduino/?light=on HTTP/1.1\r\nHost: www.linysoft.com\r\n\r\n

Then you can get the status of the LED by GETting light.json like this:

    GET /arduino/light.json HTTP/1.1\r\nHost: www.linysoft.com\r\n\r\n
| improve this answer | |

I was having same problem and this one solved the problem that after you get a '>' sign then write

GET http://linysoft.com/arduino?light=on HTTP/1.0\r\n\r\n(or if you are directly writing this on serial monitor then press enter key twice and then wait for somemoment like 2-3 sec in this case dont put \r\n\r\n)

If this didnt worked then try GET http://linysoft.com/arduino/?light=on HTTP/1.0\r\n\r\n

But in this I guess you need to specify arduino.php or arduino.html whichever type you have and too you have to take care the cipsend should be the byte no of get request excluding \r\n\r\n and add 4 to it because we are too sending \r\n\r\n these are 4 character

I hope this will surely work for you

| improve this answer | |

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