Build your own IoT Blutooth doorbell

The Internet of Things (IoT) promises to unlock the real world the way that the internet unlocked millions of computers just a few decades ago. First released in 2012, the Raspberry Pi computer has taken the world by storm. Originally designed to give newer generations the same excitement to programming that personal computers from the 1980s did, the Raspberry Pi has gone on to be a staple of millions of makers everywhere.

A diagram showing how the IoT doorbell works: The BludDot app communicates with a Rasberry Pi with connected doorbell circuit, which then coomunicates with Twilio.

The humble doorbell has been with us since 1831. In Chapters 10, 11 and 12 of Internet of Things Programming Projects, Colin Dow shows you how give it a 21st century twist and have your Raspberry Pi send a signal to a web service that will text you when someone is at the door. You'll start by using the BlueDot Android app to build a simple Bluetooth connected doorbell. You'll then refine the app, using the text messaging service Twilio to send text message alerts whenever anyone uses the doorbell.

Internet of Things Programming Projects

This book is a practical, project-based guide to help you build and control your IoT projects. Leverage the full potential of IoT with the combination of Raspberry Pi 3 and Python. Build complex, Python-based apps with IoT. Work on various IoT projects and understand the basics of electronics.

Build IoT projects!

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