The story switches 6 pins on or off using voice control.
You can easily change the voice control in buttons.
http://lucstechblog.blogspot.nl/2018/02 ... basic.html
The part where to look is in the Speechrecognizer Aftergetting text part
and then specifically the green block : SET WEB URL TO
That is where the message is formed to send data to the ESP.
Replace the GLOBAL INPUT1 with a text field of your choice and your done.