Projeto circuito de lâmpada com controle rele-npn
C++
int pinButton = 8;
int Relay = 2;
int stateRelay = LOW;
int stateButton;
int previous = LOW;
long time = 0;
long debounce = 100;
int stayON = 5000;
void setup() {
pinMode(pinButton, INPUT);
pinMode(Relay, OUTPUT);
}
void loop() {
stateButton = digitalRead(pinButton);
if(stateButton == HIGH && previous == LOW && millis() - time > debounce) {
if(stateRelay == HIGH){
digitalWrite(Relay, LOW);
} else {
digitalWrite(Relay, HIGH);
delay(stayON);
digitalWrite(Relay, LOW);
}
time = millis();
}
previous == stateButton;
}