Arduino Using Sensors & Modules

PIR Sensor Using Arduino

In this Arduino Tutorial we will learn how a PIR Sensor works and how to use it with the Arduino Board for detecting motion.


In this Arduino Tutorial we will learn how the HC-SR04 Ultrasonic Sensor works and how to use it with the Arduino Board. … How It Works.You can determine how far away something is by the time it takes for the sound waves to get back to the sensor.


In this Arduino LCD Tutorial we will learn how to connect an LCD (Liquid Crystal Display) to theArduino board. LCDs like these are very popular and broadly used in electronics projects as they are good for displaying information like sensors data from your project, and also they are very cheap.


This tutorial explains how to use DHT series Temperature & Humidity sensor on Arduino. It’s accurate enough for most projects that need to keep track of humidity and temperature readings.


Wouldn’t it be cool if we could eliminate darkness? In this Arduino project, I have posted a very simple project that focuses on eliminating darkness. Whenever a room gets dark due to a fused bulb or any other factors, a light bulb automatically turns on. You can even use this as an emergency lighting system. Use it to automatically turn a light on when there isn’t sufficient light in a room.


In this article I will explain how to detect gas using Arduino . The gas sensor can easily find gas leaking at a place. When the gas is detected it can measure the range of the gas sensor.

Rain Detector Using Arduino

rain sensor or rain switch is a switching device activated by rainfall. There are two main applications for rain sensors. The first is a water conservation device connected to an automatic irrigation system that causes the system to shut down in the event of rainfall. This project explains how to interface rain sensor with arduino. It is very simple project as reading analog signal from sensor just one code like “analogRead“. But the applications of this project has widest possibilities.


This is a simple water sensor that can be used to detect soil moisture. It outputs a high signal when the moisture is above a certain threshold. You can also read an analog signal whose value is proportional to the moisture level. Use this sensor to create an automatic self-watering plant.

Sound Sensor

Sound Detection Sensor This module allows you to detect when sound has exceeded a set point you select. Sound is detected via a microphone and fed into an LM393 op amp. The sound level set point is adjusted via an on board potentiometer. When the sound level exceeds the set point, an LED will flash according to the sound