should I just invert the logic in the Arduino code
have connected the VCC and the ground to the board and connected K1 to pin 13. Now let say for testing purpose I want to make a led blink from the relay, where do I plug the cables?
Please enter a valid email to subscribe
We need to confirm your email address.
To complete the subscription, please click the link in the
email we just sent you.
Thank you for subscribing!
via Egeo 16