OPEN-SMART Electromagnet

Open-smart electromagnet operated with push button.

Arduino UNO

Jumper wires (generic)

KY-004

Open-Smart Electromagnet

Arduino Uno Code :

const int buttonPin = 4;

const int magnetPin = 5;

int buttonState = 0;

int lastButtonState = 0;

bool magnetState = false;

void setup() {

pinMode(buttonPin, INPUT_PULLUP);

pinMode(magnetPin, OUTPUT);

digitalWrite(magnetPin, LOW);

}

void loop() {

buttonState = digitalRead(buttonPin);

if (buttonState == LOW && lastButtonState == HIGH) {

delay(50);

magnetState = !magnetState;

if (magnetState) {

digitalWrite(magnetPin, HIGH);

}

else {

digitalWrite(magnetPin, LOW);

}}

lastButtonState = buttonState;

}