book

Make: Sensors

by Tero Karvinen, Kimmo Karvinen, Ville Valtokari

May 2014

Intermediate to advanced

400 pages

8h 42m

English

Make: Community

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It’s About Your IdeasHow to Read This BookInput, Processing, OutputProtocolsBuilding Things Your WayBuying ComponentsConventions Used in This BookUsing Code ExamplesSafari® Books OnlineHow to Contact UsAcknowledgments
Raspberry Pi from Zero to First BootExtract NOOBS*.zipConnect CablesBoot and Install RaspbianTroubleshooting Your Raspberry Pi InstallationFeeling at Home in LinuxCommand-Line Interface is Everywhere, ForeverLooking AroundText Files for Configurationsudo Make Me a SandwichConnecting Electronics to Raspberry Pi PinsHello GPIO, Blink an LEDBuilding the CircuitTwo Numbering Systems: Purpose and LocationControlling GPIO Pins from the CLIWriting to Files Without an EditorLight Up the LEDTroubleshootingGPIO Without RootTroubleshooting GPIOGPIO in PythonHello PythonPython GPIOTroubleshootingWhat’s Next?
Basic Arduino SetupUbuntu LinuxWindows 7 and Windows 8OS XHello WorldAnatomy of an Arduino ProgramShields Make It Easy and Robust
Experiment: Measure Distance with Ultrasonic Sound (PING)Ping Code and Connections for ArduinoPing Code and Connections for Raspberry PiHC-SR04 Ultrasonic SensorHC-SR04 Code and Connection for ArduinoHC-SR04 Code and Connections for Raspberry PiEcho Calculations ExplainedEnvironment Experiment: Invisible ObjectsExperiment: Detect Obstacles With Infrared (IR Distance Sensor)IR Switch Code and Connections for ArduinoIR Switch Code and Connections for Raspberry PiEnvironment Experiment: How to See InfraredExperiment: Follow Movement with Infrared (IR Compound Eye)Compound Eye Code and Connection for ArduinoCompound Eye Code and Connections for Raspberry PiInstalling SpiDevAlternative Circuits for Raspberry PiTest Project: Posture Alarm (Arduino)What You’ll LearnPiezo BeeperAlarm, Alarm!Combining Piezo and IR SensorPutting Everything in a Neat Package
Experiment: Detect Smoke (Analog Gas Sensor)MQ-2 Code and Connection for ArduinoMQ-2 Code and Connection for Raspberry PiEnvironment Experiment: Smoke Goes UpExperiment: Breathalyzer (Alcohol Sensor MQ-303A)Environment Experiment: Try It Without DrinkingTest Project: Emailing Smoke AlarmWhat You’ll LearnPython for Email and Social MediaBuilding ItHow Does Email Work?Could Arduino Send Email? Not EasilyCode for Raspberry PiPackaging
Experiment: ButtonPull-Up ResistorCode and Connection for ArduinoCode and Connection for Raspberry PiExperiment: MicroswitchMicroswitch Code and Connection for ArduinoMicroswitch Code and Connection for Raspberry PiExperiment: Potentiometer (Variable Resistor, Pot)Potentiometer Code and Connection for ArduinoPotentiometer Code and Connection for Raspberry PiExperiment: Sense Touch Without Touch (Capacitive Touch Sensor QT113)QT113 Code and Connection for ArduinoQT113 Code and Connection for Raspberry PiEnvironment Experiment: Sensing Touch Through WoodExperiment: Feel the Pressure (FlexiForce)FlexiForce Code and Connection for ArduinoFlexiForce Code and Connection for Raspberry PiExperiment: Build Your Own Touch SensorCapsense Code and Connection for Raspberry PiTest Project: Haunted Ringing BellWhat You’ll LearnServo MotorsFinding Servo RangeHaunted Bell Code and Connection for ArduinoAttaching Servo to Ringing Bell
Experiment: Which Way Is Up? (Tilt Ball Switch)Tilt Sensor Code and Connection for ArduinoTilt Sensor Code and Connection for Raspberry PiExperiment: Good Vibes with Interrupt (Digital Vibration Sensor)Vibration Code and Connection for ArduinoVibration Code and Connection for Raspberry PiExperiment: Turn the KnobRotary Encoder Code and Connection for ArduinoRotary Encoder Code and Connection for Raspberry PiExperiment: Thumb Joystick (Analog Two-Axis Thumb Joystick)Joystick Code and Connection for ArduinoJoystick Code and Connection for Raspberry PiEnvironment Experiment: Salvage Parts from an Xbox ControllerExperiment: Burglar Alarm! (Passive Infrared Sensor)Burglar Alarm Code and Connection for ArduinoBurglar Alarm Code and Connection for Raspberry PiEnvironment Experiment: Cheating an AlarmTest Project: PongWhat You’ll LearnPong Packaging TipsAutomatically Start Your Game When Raspberry Pi BootsRun Game on LoginAutomatic Login
Experiment: Detecting Flame (Flame Sensor)Flame Sensor Code and Connection for ArduinoFlame Sensor Code and Connection for Raspberry PiEnvironment Experiment: Flame PrecisionExperiment: See the Light (Photoresistor, LDR)LDR Code and Connection for ArduinoLDR Code and Connection for Raspberry PiEnvironment Experiment: One DirectionExperiment: Follow the LineLine Sensor Code and Connection for ArduinoLine Sensor Code and Connection for Raspberry PiEnvironment Experiment: Black is WhiteExperiment: All the Colors of the ’BowColor Sensor Code and Connection for ArduinoColor Sensor Code and Connection for Raspberry PiTest Project: Chameleon DomeWhat You’ll LearnRGB LEDFinding the Leads of an RGB LEDRGB Code and Connection for ArduinoMoving AverageRGB LED Shows Any ColorEasing Input to OutputCombining CodesDome Building Tips
Acceleration vs. Angular VelocityExperiment: Accelerate with MX2125Decoding MX2125 Pulse LengthAccelerometer Code and Connection for ArduinoAccelerometer Code and Connection for Raspberry PiExperiment: Accelerometer and Gyro TogetherMPU 6050 Code and Connection for ArduinoMPU 6050 Code and Connection for Raspberry PiSMBus and I2C Without RootHexadecimal, Binary, and Other Numbering SystemsBitwise OperationsBit Masking with Bitwise AND &Bitwise OR |Bit Shifting <<Endianness—Typically on the Small SideExperiment: Hacking Wii Nunchuk (with I2C)Nunchuk Code and Connection for ArduinoNunchuk Code and Connection for Raspberry PiTest Project: Robot Hand Controlled by Wii NunchukWhat You’ll LearnAdding Hand Mechanics
KeypadKeypad Code and Connection for ArduinoKeypad Code and Connection for Raspberry PiEnvironment Experiment: Revealing FingerprintsFingerprint Scanner GT-511C3Fingerprint Sensor Code and Connection for Arduino MegaFingerprint Sensor Code and Connection for Raspberry PiRFID with ELB149C5M Electronic BrickRFID Code and Connection for Arduino MegaRFID Code and Connection for Raspberry PiTest Project: Ancient Chest from the FutureWhat You’ll LearnOperating the ChestThe BoxAncient Chest Code and Connection for ArduinoWho or What Is It?

Experiment: Voltage and CurrentAttoPilot Code and Connection for ArduinoAttoPilot Code and Connection for Raspberry PiExperiment: Is It Magnetic?Hall Effect Sensor Code and Connection for ArduinoHall Effect Sensor Code and Connection for Raspberry PiExperiment: Magnetic North with LSM303 Compass-AccelerometerCalibrate Your ModuleLSM303 Code and Connection for ArduinoLSM303 Code and Connection for Raspberry PiLSM330 ProtocolCompass Heading CalculationExperiment: Hall SwitchHall Switch Code and Connection for ArduinoHall Switch Code and Connection for Raspberry PiTest Project: Solar Cell Web MonitorWhat You’ll LearnConnecting Solar CellsTurn Raspberry Pi into Web ServerFinding Your IP AddressMaking Your Home Page on Raspberry PiSolar Panel Monitor Code and Connection for Raspberry PiTimed Tasks with CronWhat’s Next?
Experiment: Hearing Voices/Volume LevelMicrophone Breakout Code and Connection for ArduinoMicrophone Breakout Code and Connection for Raspberry PiEnvironment Experiment: Can You Hear a Pin Drop?Test Project: Visualize Sound over HDMIWhat You’ll LearnEnabling the Serial Port in Raspberry PiVisualizer Code and Connection for Raspberry PiFast Fourier TransformationWhat Next?
Experiment: Is It Hot in Here?LM35 Code and Connection for ArduinoLM35 Code and Connection for Raspberry PiEnvironment Experiment: Changing TemperatureExperiment: Is It Humid in Here?How Humid Is Your Breath?DHT11 Code and Connection for ArduinoDHT11 Code and Connection for Raspberry PiTalking to Arduino from Raspberry PiAtmospheric Pressure GY65GY65 Code and Connection for ArduinoUsing Arduino LibrariesGY65 Arduino Library ExplainedGY65 Code and Connection for Raspberry PiExperiment: Does Your Plant Need Watering? (Build a Soil Humidity Sensor)Soil Sensor Code and Connection for ArduinoSoil Sensor Code and Connection for Raspberry PiTest Project: E-paper Weather ForecastWhat You’ll LearnWeather Forecast Code and Connection for ArduinoEnvironment Experiment: Look Ma, No Power SupplyStoring Images in Header FilesBMP to C Conversion ProgramEnclosure Tips

Overview

Make: Sensors is the definitive introduction and guide to the sometimes-tricky world of using sensors to monitor the physical world. With dozens of projects and experiments for you to build, this book shows you how to build sensor projects with both Arduino and Raspberry Pi. Use Arduino when you need a low-power, low-complexity brain for your sensor, and choose Raspberry Pi when you need to perform additional processing using the Linux operating system running on that device.You'll learn about touch sensors, light sensors, accelerometers, gyroscopes, magnetic sensors, as well as temperature, humidity, and gas sensors.