Let us now understand basics of Relay and then will move on to the interfacing part of Relay with Arduino Uno. Relay A relay is an electrically operated switch. It consists of a set of input terminals for a single or multiple control signals, and a set of operating contact terminals. The switch may have any number of contacts in multiple contact forms, such as make contacts, break contacts, or combinations thereof. Interfacing Relay with Arduino Interfacing Relay with Arduin

Firstly will look into the introduction of servo motor and it's working. Then we will study how to interface this servo motor with Arduino Uno. Description of Servo motor Positional rotation servo motor is the most important servo motor. Hence it is also the most common type of servo motor. The shaft output rotates in about 180 degree. Additionally it includes physical stops located in gear mechanism to stop turning outside these limits to guard the rotation sensor. These c

Let us first understand what is Ultrasonic sensor and why, where it is used? Then will move to interfacing part. Ultrasonic sensor As shown below the HC-SR04 Ultrasonic (US) sensor is a 4 pin module, whose pin names are Vcc, Trigger, Echo and Ground respectively. This sensor is a very popular sensor used in many applications where measuring distance or sensing objects are required. The module has two eyes like projects in the front which forms the Ultrasonic transmitter and R

Let us start with introduction of IR sensor and then will see interfacing of IR sensor with Arduino Uno. IR sensor: An infrared (IR) sensor is an electronic device that measures and detects infrared radiation in its surrounding environment. There are two types of infrared sensors: Active IR sensor Passive IR sensor Active infrared sensors both emit and detect infrared radiation. Active IR sensors have two parts: a light emitting diode (LED) and a receiver. When an object