This Simple Beeper Circuit show us how to make a easy beeper circuit; when we press push button a sound comes from unbalanced multivibrator circuit, where a small speaker makes the sound. Also, this project is good to learn music and electronics and is also fun project for beginners. What is a Beeper Circuit: The […]
Alarm Circuits
Infrared (IR) Sensor Alarm Circuit using TSOP1738
This tutorial show how to make a Infrared (IR) Sensor Alarm Circuit using TSOP1738, which finds intruder using light which we cannot see. Also, this alarm circuit uses infrared light so people call it IR alarm, which make one invisible light beam with small chip named IC 555. Moreover, if someone walk in front of […]
Infrared (IR) Intruder Alarm Circuit
This article tell how to make new type of Infrared (IR) Intruder Alarm Circuit, where it can find person who walk through invisible light beam. Circuit have two main part: one transmitter and other one is receiver. Transmitter send out one infrared light beam across a room and if someone goes in front of light […]
Simple Piezo Buzzer Circuit
This Simple Piezo Buzzer Circuit make sound in new way, as it is easy to make and need only few parts like: Also, to make high sound like a whistle, this circuit is special because coil makes the sound to keep going and is not like other circuit with resistor and capacitor only. What is […]
Sound Operated Music Bell Circuit
To begin with, this Sound Operated Music Bell Circuit is small project that play music when it hear sound like clap or knock, it use microphone to catch sound and then start music using some small electronic parts. Also, this circuit is fun, easy to make and good for hobby or decoration use. What is […]
Simple Solar Powered Plant Watering Alarm Circuit
Simple Solar Powered Plant Watering Alarm Circuit tell us how to make small device that gives water to plant when plant need it. Furthermore, there are many ways to use solar energy but it should be clean and should not cost much, but the device used in this circuit is mix of solar power and […]