import RPi.GPIO as GPIOimport time

# GPIO Setup
GPIO.setmode(GPIO.BCM)
PELAY_PIN = 21
LED_PIN = 10
GPIO.setup(RELAY_PIN,GPIO.OUT)
GPIO.setup(LED_PIN,GPIO.OUT)
print("Relay + LED control started")

try:
    while True:
        GPIO.output(RELAY_PIN,GPIO.HIGH)    #Relay ON
        GPIO.output(LED_PIN,GPIO.HIGH)      #LED ON
        print("Relay ON | LED ON")
        
        time.sleep(2)

        GPIO.output(RELAY_PIN,GPIO.LOW)     #Relay OFF
        GPIO.output(LED_PIN,GPIO.LOW)       #LED OFF
        print("Relay OFF | LED OFF")

        time.sleep(2)

except KeyboardInterrupt:
    print("Program stopped by user")

finally:
    GPIO.cleanup()