Programming and Interfacing with Arduino provides an in-depth understanding of the Arduino UNO board. It covers programming concepts, working and interfacing of sensors, input/output devices, communication modules, and actuators with Arduino UNO board. This book contains a large number of programming examples along with the description and interfacing details of hardware with Arduino UNO board. It discusses important topics, including SPI communication protocol, I2C communication protocol, light-emitting diode, potentiometer, analog-to-digital converter, pulse width modulation, temperature sensor LM35, humidity and temperature sensor DHT11, motor driver L293D, LED interfacing and programming, and push-button interfacing and programming. Aimed at senior undergraduate students and professionals in areas such as electrical engineering, electronics, and communication engineering, this text: Discusses construction and working of sensors, including ultrasonic sensor, temperature sensor, and optical sensor. Covers construction, working, programming, and interfacing of IO devices. Discusses programming, interfacing construction, and working of relay with the Arduino board for controlling high-voltage devices. Covers interfacing diagram of devices with the Arduino board. Provides videos demonstrating the implementation of programs on the Arduino board.