I built a temperature sensor that sends Temprator every 10 minutes to my thingspeak.com panel and i see data by internet. using Site API.
on the side this I want Turn On or Of a lamp on this board by web request or get or post a request through the internet,
now how I can turn ON/OFF LED by thingspeak.com? if not, how can do this: for example, I design a PHP page that have form field by post method, I want when type "1" in this field, LED on my board Turn ON and when enter "2" turn OFF or use a button for this action.
if you have other easy way or advise to do this goal please point it,