A very interesting musical Christmas decoration light circuit can be built using a single IC, and some other few passive components, let’s learn the details as furnished below. By: Ritu Panday How it Works The circuit of a selectable muti-musical song player with 5 sequential light pattern generator is discussed here using just a single […]
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8 Function Christmas Light – Automatic Changing Lights
A simple mains operated, transformerless 8 function Christmas light circuit can be made by using a single IC, a rotary switch and a few SCRs, let’s learn the procedures in detail. The circuit is based on a single chip UTC8156 which is internally preprogrammed to produce 8 unique selectable light effects across 4 numbers of […]
Digital Christmas Candle Light
The post discuses a sequentially advancing 25 LED timer circuit which may be initiated on the 1st day of December so that each LeD lights up on each day until the 25th of December (on Christmas) when all the 25 LeD can be seen lit up. The circuit was requested by Mr. Guy Mathews Technical […]
220V Diwali, Christmas Chasing Light
The post explains a simple, compact, 220V, 120V transformerless light chaser circuit which can be used for illuminating mains operated lamps in a sequential chasing manner. Main Technical Features The chasing effect can be altered by means of pot controls. The system can be used as a decorative lighting during festive seasons like in Christmas […]
200 LED Reverse Forward LED Chaser for Diwali, Christmas Decorations
In the following article we will earn how to build a simple LED chaser circuit with a push pull or reverse forward sequencing effect, and also in the later part of the article we will learn how this simple LED chaser cold be upgraded to a 200 LED laser circuit with a reverse forward LED […]
How to Make an Interesting Random LED Flasher Circuit for Decorating a Christmas Tree
The article explains a simple random LED flasher circuit which can eb used fo decorating Chrstmas trees or other similar items during festivals. How the Circuit Functions I have already discussed a few interesting applications of the IC 4060 as an oscillator for driving clock input ICs like 4017 and also as a timer for […]
230 Volts Bulb String Light for Diwali and Christmas
The article describes how to wire tiny 12 volt flashlight bulbs into decorative string light for decorating houses during festivals like Diwali and Christmas. What are String Lights As the name suggests a string light is a wired lamp system in which many lamps such as bulbs or LEDs are joined together in series to […]
“WELCOME” Chasing LED Display
The post explains how to make a chasing “WELCOME” display circuit sign board, which illuminates each alphabet sequentially until all the 7 alphabets are lit and then the whole display shuts off, the cycle continues permanently as long as the circuit is powered. Overview I have already discussed a similar concept explaining a bar graph […]
Simple Musical Door Bell
A very simple musical door bell circuit can be built and installed in homes, the design features a replaceable music chip option, and an adjustable ringtone duration, as per the user preference, we’ll learn the entire circuit procedure through the following article. Today we can find a huge range of door bells in the market […]
220V Mains Operated LED Flasher
The following triac/diac based mains operated LED flasher circuit which is actually an astable multivibrator circuit utilizes only a diac and resistor arrangement for implementing interesting wig wag flashing of two LEDs. The circuit was shared with me by Mr.Vineesh, who is one of the keen followers of this blog. I would like to present […]
Simple Delay Timer Circuits Explained
Here we discuss how we can make simple delay timers using very ordinary components like transistors, capacitors and diodes. Importance of Delay Timers In many electronic circuit applications a delay of a few seconds or minutes becomes a crucial requirement for ensuring correct operation of the circuit. Without the specified delay the circuit could malfunction […]
Simple Hobby Electronic Projects
A few of the interesting and useful hobby electronic circuit diagrams already published in this blog have been selected and compiled here for quick reference and understanding. Making a Photo Cell using a Power transistor This is an old trick I learned many years ago. Removing the round metal cap from a power transistor, in […]
Simple LED Music Level Indicator
The shown LEDs in the circuit sequentially light and “dance” as per the level of the music applied at the input, preferable directly from the speaker terminals of the audio gadget whose music level is to be monitored. Simulation and Working The proposed LED music level indicator circuit may be understood as follows:The components which support the […]