How To Connect

diagram
  1. Connect 3.3 V pin of Raspberry Pi to VCC pin of Relay
  2. Connect GND pin of Raspberry Pi to GND of Relay
  3. Connect GPIO 21 of Raspberry Pi to Input pin of Relay
  4. Connect COM (Common pin) of Relay to +ve Voltage source of Battery
  5. Connect NO pin of Relay to +ve terminal of DC motor
  6. Connect -ve of Voltage source of Battery to -ve terminal of DC motor

Connections Logs

    Raspberry Pi
    Relay
    DC Motor
    9v battery
    CONNECTOR INFO 
            import RPi.GPIO as GPIO
        import time
        # Set up GPIO
        GPIO.setmode(GPIO.BCM)
        GPIO.setup(relay_pin, GPIO.OUT)
        # Function to turn on the motor
        def turn_on_motor():
            GPIO.output(relay_pin, GPIO.HIGH)
            print("Motor ON")
        # Function to turn off the motor
        def turn_off_motor():
            GPIO.output(relay_pin, GPIO.LOW)
            print("Motor OFF")
        try:
        # Set the GPIO pin for the relay
            relay_pin = 17
            # Main loop
            while True:
                turn_on_motor()
                time.sleep(5)  # Run the motor for 5 seconds
                turn_off_motor()
                time.sleep(2)  # Wait for 2 seconds before turning on again
        except KeyboardInterrupt:
            # Clean up GPIO on keyboard interrupt
            GPIO.cleanup()