Make by Karvinen, Tero -- Read -- Imperial Library of Trantor

Index

Make: Sensors Preface

It’s About Your Ideas How to Read This Book Input, Processing, Output Protocols Building Things Your Way Buying Components Conventions Used in This Book Using Code Examples Safari® Books Online How to Contact Us Acknowledgments

1. Raspberry Pi

Raspberry Pi from Zero to First Boot

Extract NOOBS*.zip Connect Cables Boot and Install Raspbian Troubleshooting Your Raspberry Pi Installation

Feeling at Home in Linux

Command-Line Interface is Everywhere, Forever Looking Around Text Files for Configuration sudo Make Me a Sandwich

Connecting Electronics to Raspberry Pi Pins

Hello GPIO, Blink an LED Building the Circuit Two Numbering Systems: Purpose and Location Controlling GPIO Pins from the CLI Writing to Files Without an Editor Light Up the LED Troubleshooting

GPIO Without Root

Troubleshooting GPIO

GPIO in Python

Hello Python

Python GPIO Troubleshooting

What’s Next?

2. Arduino

Basic Arduino Setup

Ubuntu Linux Windows 7 and Windows 8 OS X Hello World Anatomy of an Arduino Program Shields Make It Easy and Robust

3. Distance

Experiment: Measure Distance with Ultrasonic Sound (PING)

Ping Code and Connections for Arduino Ping Code and Connections for Raspberry Pi

HC-SR04 Ultrasonic Sensor

HC-SR04 Code and Connection for Arduino HC-SR04 Code and Connections for Raspberry Pi Echo Calculations Explained Environment Experiment: Invisible Objects

Experiment: Detect Obstacles With Infrared (IR Distance Sensor)

IR Switch Code and Connections for Arduino IR Switch Code and Connections for Raspberry Pi

Environment Experiment: How to See Infrared Experiment: Follow Movement with Infrared (IR Compound Eye)

Compound Eye Code and Connection for Arduino Compound Eye Code and Connections for Raspberry Pi Installing SpiDev Alternative Circuits for Raspberry Pi

Test Project: Posture Alarm (Arduino)

What You’ll Learn Piezo Beeper Alarm, Alarm! Combining Piezo and IR Sensor Putting Everything in a Neat Package

4. Smoke and Gas

Experiment: Detect Smoke (Analog Gas Sensor)

MQ-2 Code and Connection for Arduino MQ-2 Code and Connection for Raspberry Pi Environment Experiment: Smoke Goes Up Experiment: Breathalyzer (Alcohol Sensor MQ-303A) Environment Experiment: Try It Without Drinking

Test Project: Emailing Smoke Alarm

What You’ll Learn Python for Email and Social Media Building It How Does Email Work? Could Arduino Send Email? Not Easily Code for Raspberry Pi Packaging

5. Touch

Experiment: Button

Pull-Up Resistor Code and Connection for Arduino Code and Connection for Raspberry Pi

Experiment: Microswitch

Microswitch Code and Connection for Arduino Microswitch Code and Connection for Raspberry Pi

Experiment: Potentiometer (Variable Resistor, Pot)

Potentiometer Code and Connection for Arduino Potentiometer Code and Connection for Raspberry Pi

Experiment: Sense Touch Without Touch (Capacitive Touch Sensor QT113)

QT113 Code and Connection for Arduino QT113 Code and Connection for Raspberry Pi

Environment Experiment: Sensing Touch Through Wood Experiment: Feel the Pressure (FlexiForce)

FlexiForce Code and Connection for Arduino FlexiForce Code and Connection for Raspberry Pi

Experiment: Build Your Own Touch Sensor

Capsense Code and Connection for Raspberry Pi

Test Project: Haunted Ringing Bell

What You’ll Learn Servo Motors

Finding Servo Range

Haunted Bell Code and Connection for Arduino Attaching Servo to Ringing Bell

6. Movement

Experiment: Which Way Is Up? (Tilt Ball Switch)

Tilt Sensor Code and Connection for Arduino Tilt Sensor Code and Connection for Raspberry Pi

Experiment: Good Vibes with Interrupt (Digital Vibration Sensor)

Vibration Code and Connection for Arduino Vibration Code and Connection for Raspberry Pi

Experiment: Turn the Knob

Rotary Encoder Code and Connection for Arduino Rotary Encoder Code and Connection for Raspberry Pi

Experiment: Thumb Joystick (Analog Two-Axis Thumb Joystick)

Joystick Code and Connection for Arduino Joystick Code and Connection for Raspberry Pi

Environment Experiment: Salvage Parts from an Xbox Controller Experiment: Burglar Alarm! (Passive Infrared Sensor)

Burglar Alarm Code and Connection for Arduino Burglar Alarm Code and Connection for Raspberry Pi Environment Experiment: Cheating an Alarm

Test Project: Pong

What You’ll Learn Pong Packaging Tips Automatically Start Your Game When Raspberry Pi Boots Run Game on Login Automatic Login

7. Light

Experiment: Detecting Flame (Flame Sensor)

Flame Sensor Code and Connection for Arduino Flame Sensor Code and Connection for Raspberry Pi

Environment Experiment: Flame Precision Experiment: See the Light (Photoresistor, LDR)

LDR Code and Connection for Arduino LDR Code and Connection for Raspberry Pi

Environment Experiment: One Direction Experiment: Follow the Line

Line Sensor Code and Connection for Arduino Line Sensor Code and Connection for Raspberry Pi

Environment Experiment: Black is White Experiment: All the Colors of the ’Bow

Color Sensor Code and Connection for Arduino Color Sensor Code and Connection for Raspberry Pi

Test Project: Chameleon Dome

What You’ll Learn RGB LED

Finding the Leads of an RGB LED RGB Code and Connection for Arduino Moving Average RGB LED Shows Any Color

Easing Input to Output Combining Codes Dome Building Tips

8. Acceleration

Acceleration vs. Angular Velocity Experiment: Accelerate with MX2125

Decoding MX2125 Pulse Length Accelerometer Code and Connection for Arduino Accelerometer Code and Connection for Raspberry Pi

Experiment: Accelerometer and Gyro Together

MPU 6050 Code and Connection for Arduino MPU 6050 Code and Connection for Raspberry Pi

SMBus and I2C Without Root

Hexadecimal, Binary, and Other Numbering Systems Bitwise Operations

Bit Masking with Bitwise AND & Bitwise OR | Bit Shifting << Endianness—Typically on the Small Side

Experiment: Hacking Wii Nunchuk (with I2C)

Nunchuk Code and Connection for Arduino Nunchuk Code and Connection for Raspberry Pi

Test Project: Robot Hand Controlled by Wii Nunchuk

What You’ll Learn Adding Hand Mechanics

9. Identity

Keypad

Keypad Code and Connection for Arduino Keypad Code and Connection for Raspberry Pi

Environment Experiment: Revealing Fingerprints Fingerprint Scanner GT-511C3

Fingerprint Sensor Code and Connection for Arduino Mega Fingerprint Sensor Code and Connection for Raspberry Pi

RFID with ELB149C5M Electronic Brick

RFID Code and Connection for Arduino Mega RFID Code and Connection for Raspberry Pi

Test Project: Ancient Chest from the Future

What You’ll Learn Operating the Chest The Box Ancient Chest Code and Connection for Arduino

Who or What Is It?

10. Electricity and Magnetism

Experiment: Voltage and Current

AttoPilot Code and Connection for Arduino AttoPilot Code and Connection for Raspberry Pi

Experiment: Is It Magnetic?

Hall Effect Sensor Code and Connection for Arduino Hall Effect Sensor Code and Connection for Raspberry Pi

Experiment: Magnetic North with LSM303 Compass-Accelerometer

Calibrate Your Module LSM303 Code and Connection for Arduino LSM303 Code and Connection for Raspberry Pi LSM330 Protocol Compass Heading Calculation

Experiment: Hall Switch

Hall Switch Code and Connection for Arduino Hall Switch Code and Connection for Raspberry Pi

Test Project: Solar Cell Web Monitor

What You’ll Learn Connecting Solar Cells Turn Raspberry Pi into Web Server Finding Your IP Address Making Your Home Page on Raspberry Pi Solar Panel Monitor Code and Connection for Raspberry Pi Timed Tasks with Cron

What’s Next?

11. Sound

Experiment: Hearing Voices/Volume Level

Microphone Breakout Code and Connection for Arduino Microphone Breakout Code and Connection for Raspberry Pi

Environment Experiment: Can You Hear a Pin Drop? Test Project: Visualize Sound over HDMI

What You’ll Learn Enabling the Serial Port in Raspberry Pi Visualizer Code and Connection for Raspberry Pi Fast Fourier Transformation

What Next?

12. Weather and Climate

Experiment: Is It Hot in Here?

LM35 Code and Connection for Arduino LM35 Code and Connection for Raspberry Pi

Environment Experiment: Changing Temperature Experiment: Is It Humid in Here?

How Humid Is Your Breath? DHT11 Code and Connection for Arduino DHT11 Code and Connection for Raspberry Pi Talking to Arduino from Raspberry Pi

Atmospheric Pressure GY65

GY65 Code and Connection for Arduino Using Arduino Libraries GY65 Arduino Library Explained GY65 Code and Connection for Raspberry Pi

Experiment: Does Your Plant Need Watering? (Build a Soil Humidity Sensor)

Soil Sensor Code and Connection for Arduino Soil Sensor Code and Connection for Raspberry Pi

Test Project: E-paper Weather Forecast

What You’ll Learn Weather Forecast Code and Connection for Arduino

Environment Experiment: Look Ma, No Power Supply Storing Images in Header Files

BMP to C Conversion Program

Enclosure Tips

A. Raspberry Pi Linux Quick Reference Index About the Authors Colophon Copyright

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