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 […]
Simple Li-Fi Transmitter Receiver Circuit
Think internet is like a light and not a radio wave, then this Simple Li-Fi Transmitter Receiver Circuit do the same thing like that. This article tell how to make simple Li-Fi system to send and get data using light. Here, transmitter uses bright LED and normal transistor to send signal and receiver catch signal […]
Sound Activated Relay Circuit
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 […]
Simple Transistor Relay Driver Circuit
Small switch we call transistor is inside almost all electronic thing, but transistor cannot handle big power by itself. So we have used Simple Transistor Relay Driver Circuit which is like a special adapter for transistor and this help small signal from transistor to control big relay switch. Also, with this we can turn ON […]
LED Chaser Circuit using IC 4017
This LED Chaser Circuit using IC 4017 project make LED lights turn ON one by one like chasing, also it is fun way to learn electronics. In addition, one chip of IC 555 makes pulse again and again and that pulse connects to other chip IC 4017 and it turn ON and OFF each pin […]
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 […]





