“I’ve been growing more and more interested in the idea of First Person Video (FPV) drone racing. I’ve recently acquired a small drone and wanted a way of timing my laps - this is the resulting project.
This drone landing pad features an integrated ultrasonic sensor that detects a drones presence. When a drone departs the Arduino starts a timer. When you return your lap time is displayed to you. You can either try to improve your personal best or challenge a friend to do better than you (if you trust them with your drone that is). It can be printed and assembled over a couple of days including the required printing time.”