durima

int sw = 10;       // sw pin set
int relay = 7;       // Relay pin set   int state = LOW;      // Relay state int reading;          // SW state int previous = LOW;   // SW before state   long time = 0;        // Relay toggles on/off last time long debounce = 100;  // Debounce time set   void setup() {   pinMode(sw, INPUT_PULLUP); // SW input set , arduino pull-up resistor use   pinMode(relay, OUTPUT);    // relay set }   void loop() {   reading = digitalRead(sw);  // SW read set     //run greater than 'debounce' times have elapsed time pressed the toggle switch is pressed and sw   if (reading == HIGH && previous == LOW && millis() - time > debounce) {     if (state == HIGH)    //if relay high change low       state = LOW;     else                 // if relay low change high       state = HIGH;       time = millis();   }     digitalWrite(relay, state); //read relay state     previous = reading; //sw set reading }