CONTENTS
Chapter 16: Resources........................................................................................383
Simple Voltage Regulators.............................................................................................383
Power Dissipation................................................................................................................................. 384
Dropout Voltage.................................................................................................................................... 384
Efficiency.............................................................................................................................................. 384
Driving LEDs ..................................................................................................................384
Multiplexing.......................................................................................................................................... 385
Charlieplexing....................................................................................................................................... 387
Output Circuitry and Isolation ........................................................................................388
Semiconductor and Mechanical Switches ........................................................................................... 389
Reed Relays..................................................................................................................................... 389
Relays.............................................................................................................................................. 390
Bipolar Transistors .......................................................................................................................... 391
Transistor Arrays ............................................................................................................................. 392
FETs................................................................................................................................................. 392
Optocouplers ................................................................................................................................... 393
Solid State Relays............................................................................................................................ 393
Digital Input/Output Expansion ......................................................................................393
Shift Registers As Outputs.................................................................................................................... 393
Shift Registers As Inputs ...................................................................................................................... 395
Input Conditioning..........................................................................................................396
Voltage Dividers and Nonisolated Input Conditioning........................................................................... 396
Isolated Input Conditioning................................................................................................................... 398
Inexpensive DIY Prototyping Shields .............................................................................399
Writing an Arduino Library.............................................................................................401
Develop Functionality As a Sketch ....................................................................................................... 402
Create the Library Header File.............................................................................................................. 403
Create the Library Class File................................................................................................................. 405
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