Mastering the Arduino Uno R4: Programming and Projects for the Minima and WiFi

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Mastering the Arduino Uno R4
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	Contents
	Preface
1 ● The Arduino Uno R4
	1.1 Overview
	1.2 The Arduino Uno R4 against Uno R3
	1.3 The Arduino Uno R4 Minima hardware
	1.4 The Arduino Uno R4 Projects Kit
2 ● Arduino Uno R4 Program Development
	2.1 Overview
	2.2 Installing the Arduino IDE 2.1.0
	2.3 Software-only programs
		2.3.1 Example 1: Sum of integer numbers
		2.3.2 Example 2: Table of squares
		2.3.3 Example 3: Volume of a cylinder
		2.3.4 Example 4: Centigrade to Fahrenheit
		2.3.5 Example 5: Times table
		2.3.6 Example 6: Table of trigonometric sine
		2.3.7 Example 7: Table of trigonometric sine, cosine and tangent
		2.3.8 Example 8: Integer calculator
		2.3.9 Example 9: Dice
		2.3.10 Example 10: Floating point calculator
		2.3.11 Example 11: Binary, octal, hexadecimal
		2.3.12 Example 12: String functions
		2.3.13 Example 13: Initializing an array
		2.3.14 Example 14: Character functions
		2.3.15 Example 15: Solution of a quadratic equation
		2.3.16 Example 16: Lucky day of the week
		2.3.17 Example 17: Factorial of a number
		2.3.18 Example 18: Add two square matrices
3 ● Hardware Projects with LEDs
	3.1 Overview
	3.2 Project 1: Blinking LED – using the on-board LED
	3.3 Project 2: Blinking LED – using an external LED
	3.4 Project 3: LED flashing SOS
	3.5 Project 4: Alternately blinking LEDs
	3.6 Project 5: Chaser-LEDs
	3.7 Project 6: Chasing LEDs 2
	3.8 Project 7: Binary counting LEDs
	3.9 Project 8: Random flashing LEDs — Christmas lights
	3.10 Project 9: Button controlled LED
	3.11 Project 10: Controlling the LED flashing rate — external interrupts
	3.12 Project 11: Reaction timer
	3.13 Project 12: LED color wand
	3.14 Project 13: RGB fixed colors
	3.15 Project 14: Traffic lights
	3.16 Project 15: Traffic lights with pedestrian crossings
	3.17 Project 16: Using the 74HC595 shift register – binary up counter
	3.18 Project 17: Using the 74HC595 shift register — random flashing 8 LEDs
	3.19 Project 18: Using the 74HC595 shift register — chasing LEDs
	3.20 Project 19: Using the 74HC595 shift register — turn ON a specified LED
	3.21 Project 20: Using the 74HC595 shift register — turn ON specified LEDs
4 ● 7-Segment LED Displays
	4.1 Overview
	4.2 7-Segment LED display structure
	4.3 Project 1: 7-Segment 1-digit LED counter
	4.4 Project 2: 7-Segment 4-digit multiplexed LED display
	4.5 Project 3: 7-Segment 4-digit multiplexed LED display counter – timer interrupts
	4.6 Project 4: 7-Segment 4-digit multiplexed LED display counter — blanking leading zeroes
	4.7 Project 5: 7-Segment 4-digit multiplexed LED display — reaction timer
	4.8 Project 6: Timer interrupt blinking on-board LED
5 ● Liquid Crystal Displays
	5.1 Overview
	5.2 The I2C bus
	5.3 I2C ports of the development board
	5.4 I2C LCD
	5.5 Project 1: Display text on the LCD
	5.6 Project 2: Scrolling text on the LCD
	5.7 Project 3: Display custom characters on the LCD
	5.8 Project 4: LCD based conveyor belt goods counter
	5.9 Project 5: LCD based accurate clock using timer interrupts
	5.10 Project 6: LCD dice
6 ● Sensors
	6.1 Overview
	6.2 Project 1: Analog temperature sensor
	6.3 Project 2: Voltmeter
	6.4 Project 3: On/off temperature controller
	6.5 Project 4: Darkness reminder – using a light-dependent resistor (LDR)
	6.6 Project 5: Tilt detection
	6.7 Water level sensor
		6.7.1 Project 6: Displaying water level
		6.7.2 Project 7: Water level controller
		6.7.3 Project 8: Water flooding detector with buzzer
	6.8 Project 9: Sound detection sensor — control the relay by clapping hands
	6.9 Project 10: Flame sensor — fire detection with relay output
	6.10 Project 11: Temperature and humidity display
	6.11 Project 12: Generating musical tones — melody maker
7 ● The RFID Reader
	7.1 Overview
	7.2 Project 1: Finding the Tag ID
	7.3 Project 2: RFID door lock access with relay
8 ● The 4×4 Keypad
	8.1 Overview
	8.2 Project 1: Display the pressed key code on the Serial Monitor
	8.3 Project 2: Integer calculator with LCD
	8.4 Project 3: Keypad door security lock with relay
9 ● The Real-Time Clock (RTC) Module
	9.1 Overview
	9.2 The supplied RTC module
	9.3 Project 1: RTC with Serial Monitor
	9.4 Project 2: RTC with LCD
	9.5 Project 3: Temperature and humidity display with time stamping
	9.6 Using the built-in RTC
		9.6.1 Project 4: Setting and displaying the current time
		9.6.2 Project 5: Periodic interrupt every 2 seconds
10 ● The Joystick
	10.1 Overview
	10.2 The joystick
	10.3 Project 1 — Reading analog values from the joystick
11 ● The 8×8 LED Matrix
	11.1 Overview
	11.2 The supplied 8×8 LED matrix
	11.3 Project 1: Displaying shapes
12 ● Motors: Servo and Stepper
	12.1 Overview
	12.2 The servo motor
		12.2.1 Project 1: Test-rotate the servo
		12.2.2 Project 2: Servo sweep
		12.2.3 Project 3: Joystick-controlled servo
	12.3 The stepper motor
		12.3.1 Project 4: Rotate the motor clockwise and then anticlockwise
13 ● The Digital To Analog Converter (DAC)
	13.1 Overview
	13.2 Project 1: Generating a square wave with 2 V amplitude
	13.3 Generating sine wave – using the analogWave library
		13.3.1 Project 2: Generate a sine wave
		13.3.2 Project 3: Sine wave sweep frequency generator
		13.3.3 Project 4: Generate sine wave whose frequency changes with potentiometer
		13.3.4 Project 5: Generate a square wave with frequency of 1 kHz and amplitude of 1 V
14 ● Using the EEPROM, the Human Interface Device, and PWM
	14.1 Overview
	14.2 The EEPROM memory
	14.3 Human Interface Device (HID)
	14.4 Project 1: Keyboard control to launch Windows programs
	14.5 The Pulse Width Modulation (PWM)
		14.5.1 PWM channels of the Arduino Uno R4
		14.5.2 Project 2: LED dimming using PWM
15 ● The Arduino Uno R4 WiFi
	15.1 Overview
	15.2 The LED matrix
		15.2.1 Project 1: Using LED matrix 1 — creating a large + shape
		15.2.2 Project 2: Creating images by setting bits
		15.2.3 Project 3: Using LED matrix 2 — creating a large + shape
		15.2.4 Project 4: Animation — displaying a word
	15.3 Using the WiFi
		15.3.1 UDP and TCP
		15.3.2 UDP communication
		15.3.3 TCP communication
		15.3.4 Project 5: Controlling the Arduino Uno R4 WiFi on-board LED from a smartphone using UDP
	15.4 Bluetooth
		15.4.1 Bluetooth BLE
		15.4.2 Bluetooth BLE Software Model
16 ● Serial Communications
	16.1 Overview
	16.2 Project 1: Receiving ambient temperature from an Arduino Uno R3
17 ● Using an Arduino Uno Simulator
	17.1 Why simulation?
	17.2 The Wokwi simulator
		17.2.1 Project 1: A simple project simulation — flashing LED
		17.2.2 Project 2: Displaying text on LCD
		17.2.3 Project 3: LCD seconds counter
18 ● The CAN bus
	18.1 Overview
	18.2 The CAN bus
		18.2.1 CAN bus termination
		18.2.2 CAN bus data rate
		18.2.3 Cable stub length
		18.2.4 CAN Bus node
		18.2.5 CAN bus signal levels
		18.2.6 CAN_H voltage
		18.2.7 The CAN_L voltage
		18.2.8 Bus arbitration
		18.2.9 Bus transceiver
		18.2.10 CAN connectors
	18.3 Arduino Uno R4 CAN bus interface
		18.3.1 CAN bus transceivers
	18.4 Project 1: Arduino Uno R4 WiFi to Arduino Uno R4 Minima CAN bus communication
	18.5 Project 2: Sending the temperature readings over the CAN bus
19 ● Infrared Receiver and Remote Controller
	19.1 Overview
	19.2 The supplied infrared receiver
	19.3 The supplied infrared remote control transmitter unit
	19.4 Operation of an infrared remote control system
	19.5 Project 1: Decoding the IR remote control codes
	19.6 Project 2: Remote relay activation/deactivation
	19.7 Project 3: Infrared remote stepper motor control
Index