
How to use LDR and Buzzer with Arduino :
LDR stands for Light “Dependent Resistor”. LDR is a special type resistor that works on the photoconductivity principle. It means that resistance will change according to the intensity of light.

LDR stands for Light “Dependent Resistor”. LDR is a special type resistor that works on the photoconductivity principle. It means that resistance will change according to the intensity of light.

As you familiar with normal DC motor, when you give the power to motor they can move in 1 direction and when you change the terminal

Push buttons are among the most basic yet essential components in electronics. Whether you’re turning on an LED, starting a motor, or building a game controller — Push buttons are […]

Ultrasonic sensor is use to calculate the distance. It use ultrasonic waves to measure the distance. The ultrasonic wave can hit the object and and come back, ultrasonic sensor can use time to calculate the distance. HC-04 consists of two ultrasonic transducers.