O'Reilly details a $120 DYI smart doorbell

May 30 2017

I love building little IoT devices, so this project is right up my alley. Requiring a rPi (or similar dev board), a bit of HW, and some elbow grease you too can build your own face-recognizing doorbell.

 

Recently, I set out to install a doorbell in my new house and thought: why doesn’t my doorbell tell me who is at the door?

Most of my DIY projects end up costing more than the equivalent product, even if I value my time at $0 per hour. Something about supply chains and economies of scale, I guess. (But I have way more fun making things myself.) In the course of this project, I built a door camera that is not only way cheaper than my Dropcam, but it has some genuinely useful features that, for some reason, aren’t available on the market yet.

O'REILLY

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