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

Appendix A: Deciphering Datasheets and Schematics

At the heart of all Arduinos is a microcontroller (or MCU for short). This appendix does not summarize the features of every microcontroller in every Arduino, but it does provide a brief guide to reading and understanding datasheets. Specifically, it examines elements of the Microchip (previously Atmel) ATmega328P (the MCU used in an Arduino Uno). In addition to understanding component datasheets, learning how to read the key parts of a schematic is a critical skill. This appendix investigates the schematic for the Arduino Uno, so that you can get a better idea of how an Arduino actually works.

Reading Datasheets

One of the most important skills that you can develop as an engineer is the ability to read datasheets. Just about any electronic component that you can buy has an associated datasheet that contains information about the technical limits of the part, instructions on how to use its capabilities, and so forth.

Breaking Down a Datasheet

Consider the datasheet for the Microchip/Atmel ATmega328P, for instance. Recall that the ATmega328P is the MCU used in the Arduino Uno and many Arduino clones. To find the datasheet for most parts, you can just perform a Google search. For example, to find the datasheet for the ATmega328P, just search for ATmega328P datasheet on Google and look for the first PDF link from the manufacturer's website (microchip.com in this case). The datasheets for the MCUs used in official Arduino boards ...