A sensor connected to a Particle Photon which sends notifications to your phone when movement detected.
Busy with chores while welcoming guests? With this system, you won't need to stop what you're doing to welcome a guest in safely.
This device tracks two different doors using Hall effect sensors, I used it to track when mail is in my mailbox.
DoorForce Tracker detects every slam, measures its impact, and sends an instant email alert with force and direction data!
