Interfacing of the Relay with Arduino

Components
Code Compiler
int relay_pin = 11;
int led_pin = 6;

void setup() {
pinMode(relay_pin,);
pinMode(led_pin, );
digitalWrite(led_pin,);
}

void loop() {
digitalWrite(relay_pin,);
delay(1500);
digitalWrite(relay_pin,);
delay(1500);
}

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