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 4. Twin LEDs

LEDs in Parallel

LEDs can be used to light objects or to alert the user about the operating conditions of a device. Light-emitting diodes are easy to use and they come in a variety of shapes, sizes, and colors, as shown in Figure 4-1. The Arduino has a dedicated tiny LED wired to pin D13. By uploading the Blink sketch to the Arduino, you can check its electrical operation. Unlike the ordinary light bulb, LEDs must be wired properly for them to work. In this chapter, you will learn how to wire two LEDs to the Arduino, as shown in the block diagram in Figure 4-2. The LED projects in this chapter will also use Make:’s MakerShield, but you could use another Arduino-compatible prototyping shield. To add a little creativity to the ...