Sometimes dogs like to mistake furniture for a toilet. Out of fear for my new shoe cupboards, I decided to make a doorbell for my dog, Bobby, to push to alert me when he needed to go outside. It took a little while (and cost me a lot of treat-based incentives) to get him to push it, but soon enough, Bobby would stand by the door... and wait until I could see him to push the button. This got me wondering: could I build something where I would be notified when he stands close to the door?
In this guide, I will show you how to build a sensor capable of detecting your fluffy friend’s proximity to your door then send you a text message alert, using an Arduino and Twilio’s Programmable SMS.
It’s that time of day. Your dog wants to go outside and stands by the …