book

Exploring Arduino, 2nd Edition

by Jeremy Blum

November 2019

Beginner

512 pages

11h 50m

English

Wiley

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Why Arduino?Who This Book Is ForWhat You'll Learn in This BookFeatures Used in This BookGetting the PartsWhat You'll NeedSource Code and Digital ContentErrataSupplementary Material and SupportWhat Is an Arduino?An Open Source PlatformBeyond This Book
Exploring the Arduino EcosystemCreating Your First ProgramSummary
Digital OutputsPulse-Width Modulation with analogWrite() Reading Digital InputsBuilding a Controllable RGB LED NightlightSummary
Understanding Analog and Digital SignalsReading Analog Sensors with the Arduino: analogRead() Using Variable Resistors to Make Your Own Analog SensorsSummary
Driving DC MotorsBuilding a Roving RobotSummary
Driving Servo MotorsBuilding a Sweeping Distance SensorUnderstanding and Driving Stepper MotorsBuilding a “One-Minute Chronograph”Summary
Understanding How Speakers WorkUsing tone() to Make SoundsBuilding a Micro PianoSummary

Understanding the Arduino's Serial Communication CapabilitiesListening to the ArduinoTalking to the ArduinoTalking to a Desktop AppSummary
Emulating a KeyboardEmulating a MouseSummary
Understanding Shift RegistersControlling Light Animations with a Shift RegisterSummary
History of the I2C BusI2C Hardware DesignCommunicating with an I2C Temperature ProbeCombining Shift Registers, Serial Communication, and I2C CommunicationsSummary
Overview of the SPI BusSPI Hardware and Communication DesignComparing SPI to I2C and UARTCommunicating with an SPI AccelerometerCreating an Audiovisual Instrument Using a 3-Axis AccelerometerSummary
Setting Up the LCDUsing the LiquidCrystal Library to Write to the LCDBuilding a Personal ThermostatSummary
Using Hardware InterruptsUsing Timer InterruptsBuilding an Interrupt-Driven Sound MachineSummary
Getting Ready for Data LoggingInterfacing the Arduino with an SD CardReal-Time ClocksBuilding an Entrance LoggerSummary
The Electromagnetic SpectrumReceiving Key Presses with the RF LinkMaking a Wireless DoorbellThe Start of Your Smart Home—Controlling a LampSummary
Demystifying BluetoothCommunication between Your Arduino and Your PhoneControlling an AC Lamp with BluetoothSummary
The Web, the Arduino, and YouControlling Your Arduino from the WebInterfacing with Web APIsSummary
Reading DatasheetsUnderstanding the Arduino Schematic
About the Technical Editor

Content preview from Exploring Arduino, 2nd Edition

8Emulating USB Devices

Parts You'll Need for This Chapter

Arduino Leonardo or Seeeduino Lite or Pololu A-Star 32U4 Prime LV
USB cable (Type A to Micro-B)
Half-size or full-size breadboard
Assorted jumper wires
Pushbuttons (×3)
220Ω resistor
10kΩ resistors (×3)
Photoresistor
5 mm red LED
TMP36 analog temperature sensor
Two-axis joystick
- CODE AND DIGITAL CONTENT FOR THIS CHAPTER
- Code downloads, videos, and other digital content for this chapter can be found at:
- exploringarduino.com/content2/ch8
- Code for this chapter can also be obtained from the Downloads tab on this book's Wiley web page:
- wiley.com/go/exploringarduino2e

In the last chapter, you experimented with USB/serial communication between your computer and your Arduino. To accomplish this task, your computer connected to your Arduino's serial interface, allowing any software capable of interfacing with a serial port to talk to your Arduino. While this is really useful for basic data transfer, it doesn't even come close to using the full potential of what a native USB connection is capable of.

USB is the international de facto standard for connecting computer peripherals; its capabilities are ever expanding with USB SuperSpeed and USB-C connectors that can transport data, HD video, enough power to charge a laptop, and more. USB devices can be recognized by your computer as a variety of things. In this chapter, you'll move beyond USB/serial interfaces to learn how Arduinos with native USB support can act as human-interface ...