book

Basic Arduino Projects

by Don Wilcher

March 2014

Beginner

258 pages

4h 45m

English

Make: Community

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Conventions Used in This BookUsing Code ExamplesSafari® Books OnlineHow to Contact UsAcknowledgments
Parts ListLet’s Build a Trick SwitchTrick Switch with On/Off IndicatorsSomething to Think About
Parts ListLet’s Build a Sunrise-Sunset Light SwitchCircuit TheorySunrise-Sunset Detector with Serial MonitorSomething to Think About
Parts ListLet’s Build a Tilt Sensing Servo Motor ControllerUpload the Tilt Sensor SketchA Simple Animatronic Controller Using the Serial MonitorCircuit TheorySomething to Think About
Parts ListCircuit TheoryTwin LED FlasherBuild the Adjustable Twin LED FlasherIt’s Alive! Build a FrankenBot ToySomething to Think About
Parts ListCircuit TheoryThe Opposite Switch (aka the NOT Logic Gate)Build an Arduino NOT Logic GateUpload the Arduino NOT Logic Gate SketchSomething to Think About
Parts ListCircuit TheoryThe Arduino AND Logic GateUpload the Arduino AND Logic Gate SketchSomething to Think About
Parts ListCircuit TheoryThe Arduino OR Logic GateUpload the Arduino OR Logic Gate SketchSomething to Think About
Parts ListCircuit TheoryThe Up-Down SensorSomething to Think About
Parts ListCircuit TheoryThe RGB FlasherSomething to Think About

Parts ListLet’s Build a Magic Light BulbUpload the Magic Light Bulb SketchCircuit TheorySomething to Think About
Parts ListLet’s Build a Metal CheckerUpload the Metal Checker SketchCircuit TheorySomething to Think About
Parts ListLet’s Build a ThereminUpload the Theremin SketchCircuit TheorySomething to Think About
Parts ListLet’s Build an Arduino OhmmeterUpload the Arduino Ohmmeter SketchCircuit TheorySomething to Think About
Parts ListLet’s Build the LCDUpload the LCD News Reader SketchCircuit TheorySomething to Think About
Parts ListLet’s Build a Logic TesterUpload the Logic Tester SketchCircuit TheorySomething to Think About
Parts ListLet’s Build a Logic TesterUpload the Logic Tester SketchCircuit TheorySomething to Think About
Parts ListLet’s Build an Amazing PushbuttonUpload the Amazing Pushbutton SketchDownload and Install Processing NotesLet’s Visualize Digital Data with ProcessingTroubleshooting Tips for ProcessingSomething to Think About
Parts ListLet’s Build a Terrific Tilt SwitchUpload the Terrific Tilt Switch SketchLet’s Visualize Digital Data with ProcessingSomething to Think About
Parts ListLet’s Build a Rocket GameUpload the MultiDigital4 SketchThe Rocket Launcher with ProcessingSomething to Think About
Parts ListLet’s Build a Temperature IndicatorUpload the Temperature Indicator SketchThe Negative Temperature Coefficient (NTC) Sensor with ProcessingSomething to Think About
Parts ListLet’s Build a Servo Motor TesterUpload the Sweeping SketchSomething to Think About
Parts ListLet’s Build an Electronic CricketUpload the Electronic Cricket SketchSomething to Think About
Parts ListLet’s Build a Pocket Stage LightUpload the Pocket Stage Light SketchSomething to Think About
Parts ListLet’s Build an Electronic PixelUpload the Electronic Pixel SketchSomething to Think About
Parts ListLet’s Build a MetronomeUpload the Metronome SketchSomething to Think About
Parts ListLet’s Build a Secret Word GameUpload the Secret Word Game SketchRules for the Secret Word GameSomething to Think About

Content preview from Basic Arduino Projects

Chapter 12. The Theremin

A Simple Transistor Amplifier

Electronic circuits that produce audible sounds have been used to create strange and eerie audio effects for science-fiction movies like Star Wars and Marvel’s The Avengers. The Theremin is a device that generates different electronic sounds by waving hands over and around a pair of protruding antennas.

You can make your own awesome Theremin using a few electronic components. The Theremin in this project will not use a pair of antennas but a photocell to interact with the device. Also, a simple transistor amplifier will be built to enhance the volume of the electronic sounds created with your Theremin. The Parts List shows all of the electronic components needed to build your own Theremin.