Hi guy's, long time reader first time poster. I have a problem that I just can't understand. I am making a timer relay that I need to activate a few seconds AFTER the switch has been triggered. Also known as ON DELAY. But after days of google searches I finally stopped in here to ask. So like I said a relay to be triggered a few seconds after the switch has been tripped. Also, I have the timer to be adjusted by a pot, I think I figured that one out , but not sure. How can I accomplish this daunting task. Every time I look for an arduino controlled on delay relay it's a rash of "don't use delay use milli" yeah well it is a delay but not the code delay. If that made since. Ok code time.
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//Project 3.04
//use potentiometer output to set time rate
int potentiometer = A0;
int potRead = 0;
int buttonPin = 2; // the number of the pushbutton pin
int relay = 12;
int isOn = 1;
long now = 0;
// variables will change:
int buttonState = 0; // variable for reading the pushbutton status
void setup(){
// initialize the pushbutton pin as an input:
pinMode(buttonPin, INPUT);
pinMode(relay,OUTPUT);
pinMode(potentiometer,INPUT);
digitalWrite(relay,LOW);
}
void loop(){
// read the state of the pushbutton value:
buttonState = digitalRead(buttonPin);
// check if the pushbutton is pressed.
// if it is, the buttonState is HIGH:
if (buttonState == HIGH) {
potRead = analogRead(potentiometer);
if(millis() > now + potRead){
digitalWrite(relay,isOn);
isOn = 1 - isOn;
now = millis();
}
}
else {
digitalWrite(relay, LOW);
}
}
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If you guy's have any IO on this matter it would be greatly appreciated, thank you. Sorry I forgot to add, I have looked on this forum but I could only find things close but, I couldn't figure out how to reorder the code.