I want to write a code to manually input a value for temperature through a keypad and use that value to control a fan on for 5min.
ie,
if I can input a value 30 (as temperature trigger value) through the keypad,
I want to use that value in the following code:
// temp : temperature value from temperature sensor
//triggerTEMP : value from keypad to set trigger temperature
if(temp > triggerTEMP)
{
digitalWrite (relayFAN, HIGH);
}
else
digitalWrite (relayFAN, LOW);