book

Arduino Projects for Amateur Radio

Name: Arduino Projects for Amateur Radio
ISBN: 9780071834063

by Jack Purdum, Dennis Kidder

September 2014

Intermediate to advanced

464 pages

13h 36m

English

McGraw-Hill Education TAB

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Cover
Title Page
Copyright Page
Dedication
About the Author
Contents
Preface
Acknowledgments
1 Introduction
Which Microcontroller to Use?We Chose Arduino, So Now What?Interpreting Table 1-1Making the ChoiceWhat Else Do You Need?SoftwareDownloading and Installing the Arduino Integrated Development EnvironmentInstalling the SoftwareRunning Your First Program
2 I Don’t Know How to Program
I Don’t Need No Stinkin’ CW!Like CW, Like ProgrammingThe Five Program StepsStep 1. InitializationStep 2. InputStep 3. ProcessingStep 4. OutputStep 5. TerminationArduino Programming EssentialsThe Blink ProgramData DefinitionsWhere’s the main() Function?The setup() FunctionThe loop() FunctionI Thought There Were Five Program Steps?Modifying the Blink SketchSaving MemoryRemove Unused VariablesUse a Different Data TypeAvoid Using the String ClassThe F() MacroThe freeRam() FunctionConclusion

3 The LCD Shield Project
Libraries: Lessening the Software BurdenNot All LCDs Are the SameLCD Shield Parts ListAssembling the LCD ShieldBreakaway Header PinsSoldering Components to the ShieldAdding Components Using a SchematicAn Alternative DesignLoading the Example Software and TestingA “Code Walk-Through” of the “HelloWorld” SketchExplore the Other ExamplesUsing Your LCD Display with the TEN-TEC RebelUnder the Rebel HoodSoftware ModificationsConclusion
4 Station Timer
Software Version of ID TimerMagic NumbersPreprocessor DirectivesFixing Bad Magic Numbers: #defineA Second Way to Remove Magic Numbers: constFixing Flat Forehead MistakesEncapsulation and ScopeFixing Our Program BugThe static Data Type SpecifierUsing a Real Time Clock (RTC) Instead of a Software ClockThe Inter-Integrated Circuit (I2C or I2C) InterfaceThe I2C and the DS1307 RTC ChipBCD and the DS1307 RegistersConstructing the RTC/Timer ShieldThe Adafruit RTClib LibraryInitializing the RTCRunning the ProgramThe RTC Timer ProgramThe loop() FunctionA Software HiccupConclusion
5 A General Purpose Panel Meter
Circuit DescriptionConstructionAn Alternate Design LayoutLoading the Example Software and TestingCode Walk-ThroughInstantiating the lcd and lbg ObjectsThe loop() CodeTesting and Calibration of the MeterChanging the Meter Range and ScaleVoltmeterAmmeterChanging the ScaleConclusion
6 Dummy Load
Mechanical ConstructionResistor Pack SpacingFabricating the Lid ConnectionsAttaching the Lid to the Resistor PackElectronic ConstructionDoing the MathSoftwareConclusion
7 A CW Automatic Keyer
Required Software to Program an ATtiny85Connecting the ATtiny85 to Your ArduinoThe Proper Programming SequenceSome Things to Check If Things Go SouthUsing the DigisparkCompiling and Uploading Programs with DigisparkThe CW KeyerAdjusting Code SpeedCapacitance SensorsThe volatile KeywordConstructionConclusion
8 A Morse Code Decoder
Hardware Design ConsiderationsSignal Preprocessing Circuit DescriptionNotes When Using the Decoder with the TEN-TEC RebelDecoder SoftwareSearch a Binary Tree of ASCII CharactersMorse Decode ProgramFarnsworth TimingConclusion
9 A PS2 Keyboard CW Encoder
The PS2 KeyboardTesting the PS2 ConnectorThe PS2 Keyboard Encoder SoftwareAdding the PS2 Library Code to Your IDECode Walk-Through on Listing 9-1Overloaded MethodsThe sendcode() MethodSome Bit-FiddlingIsolating the Arduino from the TransmitterTestingOther FeaturesChange Code SpeedSidetoneLong MessagesConclusion
10 Project Integration
Integration IssuesThe Real Time Clock (RTC) ShieldCW Decoder ShieldPS2 Keyboard KeyerThe Expansion BoardSoftware Project PreparationC++, OOP, and Some Software ConventionsC++ Header FilesClass Declarationpublic and private Members of a ClassFunction Prototypescpp FilesClass Constructor MethodIntegrationCode.inoHeader FilesConstructorsHow the Terms Class, Instantiation, and Object Relate to One AnotherThe Dot Operator (.)The loop() FunctionConclusion
11 Universal Relay Shield
ConstructionCircuit DescriptionConstruction of the Relay ShieldTesting the Relay ShieldTest Sketch “Walk-Through”Conclusion
12 A Flexible Sequencer
Just What Is a Sequencer?The Sequencer DesignTimingConstructing the SequencerA Purpose-Built SequencerProgramming and Testing the SequencerInitial Testing of the SequencerLoading the Sequencer Program and TestingSequencer Code “Walk-Through”Modifying the Sequence Order and Delay TimeConfiguring the Jumpers for Different SituationsModifying the Relay Shield from Chapter 11Alternate Listing for the Relay Shield SequencerConclusion
13 Rotator Controller
The Arduino Antenna Rotator ControllerSupported RotatorsRelay ShieldPanel Meter ShieldThe Control PanelAdding the I2C Interface to the Relay Shield from Chapter 11Connecting the Rotator ControllerEarly Cornell-Dublier Electronics (CDE) ModelsLater Models from HyGain, Telex, and MFJYaesu Models G-800SDX/DXA, G-1000SDX/DXA, and G-2800DXASoftwareArduino Beam Heading SoftwareMoving the BeamSetting a New HeadingStoring a New Heading in EEPROMWorld Beam HeadingsFinding the Coordinates for a QTHFinding a Beam HeadingConclusion
14 A Directional Watt and SWR Meter
SWR and How It Is MeasuredObtaining the Antenna System SWRDetectorsConstructing the Directional Watt/SWR MeterDesign and Construction of the Directional Coupler/Remote SensorThe Sensor BoardFinal Assembly of the Coupler/SensorInterface Shield ConstructionLCD Shield OptionsFinal AssemblyTesting the Directional Wattmeter/SWR IndicatorCalibrating the Directional WattmeterSoftware Walk-ThroughDefinitions and Variablessetup()loop()Further Enhancements to the Directional Wattmeter/SWR IndicatorConclusion
15 A Simple Frequency Counter
Circuit DescriptionConstructing the ShieldAn Alternate Design for Higher FrequenciesCode Walk-Through for Frequency CounterDisplaying the Tuned Frequency of Your Display-less QRP RigDouble Conversion ApplicationsAdding a Frequency Display to the MFJ Cub QRP TransceiverAdding a Frequency Display to a NorCal 40Direct Conversion ApplicationsOther Radio ApplicationsConclusion
16 A DDS VFO
Direct Digital SynthesisThe DDS VFO ProjectDDS VFO Circuit DescriptionThe Analog Devices AD9850 Breakout ModuleConstructing the DDS VFO ShieldAdding an Output Buffer Amplifier for the DDS VFOThe Front Panel and InterconnectionDDS VFO Functional DescriptionOverviewEEPROM Memory MapSW1, the User Frequency Selection Switch (UFSS)SW2, the Band-Up Switch (BUS)SW3, the Band-Down Switch (BDS)SW4, Plus Step Switch (PSS)SW5, Minus Step Switch (MSS)SW6, the Encoder ControlThe DDS VFO SoftwareEEPROM Initialization ProgramThe KP VFO Software (VFOControlProgram.ino)setup()loop()Testing the DDS VFOCalibrating the DDS VFOUsing the DDS VFO with Your RadioThe Pixie QRP RadioBlekok Micro 40SCCRKits CRK 10A 40 meter QRP TransceiverOther Applications of the DDS VFO and Additional EnhancementsConclusion
17 A Portable Solar Power Source
The Solar SensorSolar Charger ControllerPanel Positioning and Stepper MotorStepper WiringStepper Motor DriverControl InputsSolar Panel Support StructureStepper Motor DetailsMounting the Stepper MotorSolar Panel ConnectionsPlacing the Quick ConnectorsThe Motor Controller ShieldRouting Power CablesMotor Controller Shield WiringAltitude PositioningThe SoftwareFinal AssemblyAssembly and DisassemblyConclusion
A Suppliers and Sources
B Substituting Parts
C Arduino Pin Mapping
Index

Overview

BOOST YOUR HAM RADIO'S CAPABILITIES USING LOW-COST ARDUINO MICROCONTROLLER BOARDS!

Do you want to increase the functionality and value of your ham radio without spending a lot of money? This book will show you how! Arduino Projects for Amateur Radio is filled with step-by-step microcontroller projects you can accomplish on your own--no programming experience necessary.

After getting you set up on an Arduino board, veteran ham radio operators Jack Purdum (W8TEE) and Dennis Kidder (W6DQ) start with a simple LCD display and move up to projects that can add hundreds of dollars' worth of upgrades to existing equipment. This practical guide provides detailed instructions, helpful diagrams, lists of low-cost parts and suppliers, and hardware and software tips that make building your own equipment even more enjoyable. Downloadable code for all of the projects in the book is also available.

Do-it-yourself projects include:

LCD shield
Station timer
General purpose panel meter
Dummy load and watt meter
CW automatic keyer
Morse code decoder
PS2 keyboard CW encoder
Universal relay shield
Flexible sequencer
Rotator controller
Directional watt and SWR meter
Simple frequency counter
DDS VFO
Portable solar power source

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