A Gas Alarm Circuit using an MQ Sensor and a buzzer gives a quick warning when the gas level becomes dangerous; also the MQ Sensor quickly detects a gas leak, and the buzzer produces a loud sound when it detects gas. Moreover, circuit runs on 5V and uses very few parts and it is good […]
Sensors and Detectors
IR Transmitter and Receiver Circuit using 555 and 4017 IC
This project is IR Transmitter and Receiver Circuit using 555 and 4017 IC, as it works with infrared light and it also has two parts transmitter and receiver. Transmitter sends IR signal and receiver catches signal and turns relay ON or OFF and furthermore, it can control small home device without wire. Circuit Working for […]
Automatic Street Light Circuit using Arduino
This project for Automatic Street Light Circuit using Arduino show street light can think smart. Light will turn ON when night come and light will turn OFF when sun come; therefore no need of a human to press a switch. Arduino and LDR do all work automatic and it also save power and make street […]
Smart Street Light Control Circuit
Light ON at night and light OFF in day all automatic! A single LDR and a BC547 transistor perform all these functions. This Smart Street Light Control Circuit is a easy and simple way to save energy and also there is no manual effort and no energy waste. Circuit Working: Parts List: Components Values Quantity […]
Obstacle Detection Circuit with 555 Timer and Ultrasonic Sensor
Want to build a smart obstacle detector without using Arduino? then this simple project uses a 555 timer and an ultrasonic sensor to sense distance and control a DC motor automatically. Also, it is easy to make with low-cost and perfect for beginners in electronics; therefore, this Obstacle Detection Circuit with 555 Timer and Ultrasonic […]
Temperature Controlled LED Circuit
This small Temperature Controlled LED Circuit can feel the heat! When we place near warm thing, it sense temperature and LED glow and it work very simple using one diode and one transistor only. No microcontroller, no sensor IC, just few parts and also we can build it easy at home and see how heat […]