In this post we learn how to make a powerful LED flashlight using a stepper motor and a few capacitors, and use it to create awesome light simply by a […]
3V to 5V Boost Circuit for Battery Charging and LED Driver Applications
The post narrates how a single chip MAX641 can be used for making an efficient 3V to 5V boost converter circuit for charging 5V battery from a 3V source for […]
Simple LED Stopwatch Using IC 555 and IC 4017
In this post we are going to construct a simple LED stopwatch using IC 555 timer and IC 4017 decade counter. The elapsed time is indicated by LEDs which illuminates […]
LED Amplifier Circuit
The light emission of an LED is usually fairly small. In case a lot more brightness is needed, the following LED amplifier circuit might help. The LED to be amplified’ […]
Road Diversion Warning Indicator using Running LED Lights
The discussed LED lamp chaser circuit can be effectively used for indicating or warning road diversions or when a roadwork is in progress, especially in areas where street lamps are […]
Car Chasing LED Arrow Turn Signal Indicator Circuit
A very simple yet interesting Chasing LED arrow car tun signal indicator circuit is discussed in this article. The circuit uses just a single 10 stage Johnson’s decade counter IC […]