This article show how to make one Sound Activated Relay Circuit, which uses sound for turning device ON and OFF. Also, relays are special parts and they control big power things like lights and motors. Here are some ways to use it: Furthermore, this article tell us how to build and use this type of […]
Sensors and Detectors
Simple Temperature Indicator Circuit using a Single Transistor
To make a Simple Temperature Indicator Circuit using a Single Transistor is not so hard like people think. Furthermore, this article makes understand, how anyone can build this easy circuit using one diode, one transistor and some other small parts. What is a Temperature Indicator Circuit using a Single Transistor: Firstly, using one transistor, temperature […]
Automatic Day Night Switch Circuit
Nowadays, saving electricity is very important and mostly in city where power is not enough. This article for Automatic Day Night Switch Circuit show how to make easy auto light switch which turn ON or OFF light when outside light changes and through this way people can save money on electric bill. What is a […]
Simple Non Contact AC Mains Voltage Detector Circuit
This Simple Non Contact AC Mains Voltage Detector Circuit is to find AC voltage without touching wire, and it uses antenna to catch AC signal from air. After that, the signal goes through transistors and LED blink when AC voltage is near, also this circuit is good for safety and easy to make at home. […]
Water Level Indicator Circuit
This Water Level Indicator Circuit is a small project to show water level in tank by using 4 LED lights and each LED tells how much water is inside the tank and when water goes up more then more LEDs turn ON. Also, this circuit is easy to make and uses cheap parts and is […]
IC LM35 Temperature Indicator Circuit
To begin with, this IC LM35 Temperature Indicator Circuit is small and easy circuit, which uses LM35 chip to check temperature. Also, there are no need of many parts and no need of difficult microcontroller, LED light turn ON when it become too hot or too cold which depend on how we set it. Hence, […]