Sniffur

Has anyone seen my doggo?

##Locate roaming office dogs with Sniffur Picture this — you’re paw deep in code with your furry best friend contentedly snoozing by your side. You write a particularly legit regex and turn to pet your four-pawed companion only to realize the fluffy pillow bed next to your desk is empty! Your BFF is roaming the office _again_, and you have no idea where her current location is. Ever happened to you? As a pet-friendly office, we’ve experienced this tragedy way too often. Since we all know necessity is the mother of invention we built an indoor pup triangulation system using an [Estimote beacon](http://estimote.com/) and three Bluetooth enabled [Raspberry Pi](https://www.adafruit.com/products/998) sniffers. ##Background on Beacons Beacons are usually placed in stationary locations such as displays or areas of interest in retail stores. They emit a polling signal every second or so that any device with BLE (Bluetooth Low Energy) can pick up, your phone being one of them. That signal includes a few unique IDs and a value called an RSSI (Received Signal Strength Indicator) which basically tells how close you are to the beacon. If you have an app that is configured to listen for a beacon with a certain ID it can make things happen behind the scenes. For instance, at a retailer, the app could determine if you’re standing in front of a pair of jeans and then tell a server on the internet this information. The server can then send out a push notification giving you a deal on jeans. For Sniffur we flipped this scenario and put the normally stationary beacon on a moving dog. The signal strength then emits from the dog for our three antennas to pick up and process. ![Sniffur](https://cdn-images-1.medium.com/max/1200/1*DEv2tEosh6MgpIo9vUJ7SA.png) ![Sniffur](https://cdn-images-1.medium.com/max/2000/1*U_54rUBz1LFNgT8DHoNtsA.png) Hopefully this will inspire you to experiment with your own uses for beacons. If you're interested in the tech behind this idea, head over to my [blog](https://ideas.redpepper.land/has-anyone-seen-my-dog-c7da3e0e47b9#.4r2rrpsnr) to find code and more explanation. Also, no animals were harmed in the filming of this video. Also, yes, Bean is a greyhound and is the sweetest dog on earth. See what [Raspberry Pi](https://www.raspberrypi.org/blog/triangulating-the-office-dog/), [Raspberry Pi Pod](http://www.recantha.co.uk/blog/?p=13793), and [Hackaday](http://hackaday.com/2015/11/29/office-dog-triangulation-keeps-spot-accounted-for/) said about our work!
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