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  • Book Overview & Buying Raspberry Pi Sensors
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Raspberry Pi Sensors

Raspberry Pi Sensors

By : Rushi Gajjar
4.4 (9)
Buy this Book
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Raspberry Pi Sensors

Raspberry Pi Sensors

4.4 (9)
By: Rushi Gajjar
Buy this Book

Overview of this book

This book is perfect for hardware enthusiasts who want to develop amazing projects using Raspberry Pi. Some knowledge and experience working with Linux, C, and Python is a plus, but once you're set up to go, you'll be ready to push the creative capabilities of your Raspberry Pi even further.
Table of Contents (10 chapters)
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Preface
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Preface
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What this book covers
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What you need for this book
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Who this book is for
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Conventions
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Reader feedback
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Customer support
Free Chapter
1
1. Meeting Your Buddy – the Raspberry Pi
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1. Meeting Your Buddy – the Raspberry Pi
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A glance at the Raspberry Pi board
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Setting up for the first time
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Connecting the Raspberry Pi to the Internet
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A crash course on Linux
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Installing useful libraries
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python-gpio
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Be ready with Python and C
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Practice makes you perfect
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Summary
2
2. Meeting the World of Electronics
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2. Meeting the World of Electronics
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Basic terminologies of electronics
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Communication protocols
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Useful tips and precautions
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Understanding the GPIO port
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It's time to glow LEDs!
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Summary
3
3. Measuring Distance Using Ultrasonic Sensors
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3. Measuring Distance Using Ultrasonic Sensors
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The mysterious ultrasonic sensor
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Building the project!
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Fixing common problems
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A wearable device for the visually impaired
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Summary
4
4. Monitoring the Atmosphere Using Sensors
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4. Monitoring the Atmosphere Using Sensors
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Sensor selection process
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InsideDHT – temperature and humidity sensors
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Introducing the photoresistor (photocell)
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Building the project
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Putting all the parts together
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Troubleshooting common problems
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Summary
5
5. Using an ADC to Interface any Analog Sensor with the Raspberry Pi
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5. Using an ADC to Interface any Analog Sensor with the Raspberry Pi
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Analog-to-digital convertors
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MCP3008 for analog-to-digital conversion
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Making your own sensor station
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Generic software preparation
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Using your sensor station – make a temperature logger
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Summary
6
6. Uploading Data Online – Spreadsheets, Mobile, and E-mails
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6. Uploading Data Online – Spreadsheets, Mobile, and E-mails
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Internet of Things
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Hardware setup
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Synchronizing the clock with the Internet
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Uploading data on Google spreadsheets
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Getting notified by e-mails
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Integrating everything
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Common problems faced
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Summary
7
7. Creating an Image Sensor Using a Camera and OpenCV
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7. Creating an Image Sensor Using a Camera and OpenCV
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Image processing
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OpenCV
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Camera interfacing with the RasPi
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Live streaming using a network camera
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Porting OpenCV
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Create a motion detector
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Amazing projects for you
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Summary
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A. Shopping List
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Basic requirements
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Sensors
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Integrated chips
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Components
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Others
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Index
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Index

It's time to glow LEDs!

Let's gather some components and wires first. You need a standard LED (one piece, forward voltage, and 3.3V), wires (one red and one black, with a 2.54 mm female-to-female jumper wire connector), an Ethernet cable, your PC, and the RasPi+.

The standard setup that we had all the time and we will follow is PC (Windows/Mac/Linux) with PuTTY or the terminal installed. There is also the Ethernet connection of the PC with the RasPi, with the entire configuration and setup explained in Chapter 1, Meeting Your Buddy – the Raspberry Pi. What I assume now is that your PC is running a live session with the RasPi. Take the LED in your hand and carefully observe that among the two terminals, one terminal is longer than the other; this is the positive (anode) terminal of the LED. The shorter terminal on LED is negative (ground) and it should be connected to pin 6 (GND) of the RasPi. Carefully connect the positive terminal to pin 11 (BCM GPIO 17, refer to GPIO table...

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