sending codes7commands thru wifi

[Pinguin]

Dear all, I made a switch controller with arduino and an ESP01 as wifi interface.
To control the switches I must send string of the form XX (2 numbers) and a newline character (/n) to an Ip address; The ESP will transmit this to the serial port of arduino.
How could I do this in the switches edit ? a simple URL would be nice.

thanks for your help