Brian Slumpff
Newbie level 1
I'm building an automated pet door for my senior project. I need a sensor system for the door to open when the pet gets close to the door. I was thinking about using and ultrasonic transmitter attached to the door which sends a signal out and gets received and transmitted by the dogs collar, which is then received by the sensor on the door. Would this work, and is this the best way to do this?