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Raspberry Pi Zero Cookbook

You're reading from   Raspberry Pi Zero Cookbook Delve into the practical world of the Raspberry Pi Zero

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Product type Paperback
Published in Mar 2017
Publisher Packt
ISBN-13 9781786463852
Length 422 pages
Edition 1st Edition
Languages
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Author (1):
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Edward Snajder Edward Snajder
Author Profile Icon Edward Snajder
Edward Snajder
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Table of Contents (11) Chapters Close

Preface 1. Kick-Start Your Raspberry Pi Zero FREE CHAPTER 2. Setting Up Physical and Wireless Connections 3. Programming with Linux 4. Programming with Python 5. Getting Your Hands Dirty Using the GPIO Header 6. Controlling the LEDs and Displays 7. Controlling the Hardware 8. Taking Digital Inputs to the Raspberry Pi Zero 9. Interfacing Sensors with the Raspberry Pi Zero 10. Cooking up Projects to Amaze the World!

Heartrate monitoring wearable device

The Raspberry Pi Zero is small enough that you could bring it with you, power it, and attach monitors without the need to be directly connected to anything. Using the MQTT protocol, we can communicate whenever the network is available, as long as we have a running broker available.

Getting ready

You'll need your Raspberry Pi Zero running Raspbian, an MCP3008 ADC, and a Pulse Sensor. A popular and inexpensive open source pulse sensor is available at http://pulsesensor.com/.

This is really another recipe that could use its own Raspberry Pi; with a small USB battery pack, this would be easy to incorporate into a wearable to keep track of your pulse throughout the day.

If you want to publish to your OpenHAB MQTT broker, you'll want to have an OpenHAB instance as shown in the Setting up your hardware for home Automation recipe. Finally, you'll want a Mosquitto broker running somewhere (which works fine on your OpenHAB instance), but you can install...

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