We recently got given Arduino starter kits as part of a university project. Having no experience with the hardware side of electronics before i could really use some advice. My idea for the device is relatively simple in concept but i could use some pointers as to the realism of it. Basically i need my arduino to recognize whether a door is open or closed. I planned on using an ultrasonic sensor to detect if the door was closed.
Is this a good option? Or is there a better way of pulling this off?
Any help is greatly appreciated guys!