Circuit Diagram
Christmas LED Lights Circuit
Using this simple Christmas LED lights decoration circuit, you can make an 18 LED flasher to decorate the Christmas Tree. The White, Blue and Red LEDs flash at different rates to give a colorful display. It is a light sensitive circuit so that it will turn on in the evening automatically and stays on till […]
LDR PC Desk Lamp
Most of the PC desk lamps available in the market light up whenever there is an input power. These don’t take into account whether there is a real need for the light or not. Here is an intelligent PC desk lamp circuit that overcome the problem.It senses the light level in the room to determine […]
Frequency counter circuit
You may have already seen various projects over many websites named Frequency counter, Digital Frequency Counter etc. I’m posting just another of them. Showing the use of timer/counter of AVR micro controller (Atmega8) in one of it’s form. This circuit can be used as a simple micro controller project for your engineering courses. Frequency of a periodic signal is […]
Battery charger circuit using SCR
A simple battery charger based on SCR is shown here.Here the SCR rectifies the AC mains voltage to charge the battery.When the battery connected to the charger gets discharged the battery voltage gets dropped.This inhibits the forward biasing voltage from reaching the base of the transistor Q1 through R4 and D2.This switches off the transistor.When […]
Fritzing Software Download
Fritzing software is an interesting open-source initiative to support designers, artists, researchers and hobbyists to work creatively with interactive electronics and develop electronic projects. Fritzing helps you learn more about electronic circuits, to document your projects and even let’s you prepare them for production. Fritzing Views Once you have build your circuit on the breadboard […]
Dark Detector using LDR and 555 Timer IC
Darkness detector is simply a LDR (Light Dependent Resistor) interfaced square wave generator. In this project the square wave generator is developed as a 555 Timer IC based ASTABLE MULTIVIBRATOR. As this circuit is primarily based on the working principle of LDR, before going any further to understand this LDR circuit, we must get the basic details of the […]
3.7v Battery Low Full Indicator Circuit
In This Project 3.7v Battery Low Full Indicator Circuit, We Are Going To Make A Very Simple Battery Level Indicator. This Indicator Circuit Is For A 3.7 Volts Indicator. We Have Designed This Circuit With Few Components At Home With Easily Available Components. These Components Can Either Be Collected From An Old Circuit Or Can Be Purchased […]
15W+15W Dual bridge amplifier Designed by using TDA7297 IC Circuit diagram
15W+15W Dual bridge amplifier Designed by using TDA7297 IC 15W+15W Dual bridge amplifier and it is most suitable for low power car audio amplifier. This amplifier IC accepts wide range of supply voltage from 6V to 18V. It produce good audio output with minimum external components hence board size becomes tiny. This IC has stand […]