Relay Module (Voltage Control) - Wokwi ESP32, STM32, Arduino Simulator

const int relayPin = 7;

void setup() {
  pinMode(relayPin, OUTPUT);
}

void loop() {

  digitalWrite(relayPin, HIGH);
  Serial.println("Relay ON");

  delay(3000);

  digitalWrite(relayPin, LOW);
  Serial.println("Relay OFF");

  delay(3000);
}