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Christmas Circuits
Holiday (Fun Circuits)

Christmas Circuits         Halloween Circuits
Last Updated on: Tuesday, October 24, 2017 02:54 PM


Links to electronic circuits, electronic schematics, designs for engineers, hobbyists, students & inventors:

555 Christmas Lights -  This 555 flasher project is an exception. This is a take-off on the previous Firefly Lights Circuit posting. I had a strip of four tiny PCB’s remaining, so I built them up before  [Circuit posted by Jim Keith]

AC Power Line Operated Christmas Star -

Anti-Flicker Circuit for LED Christmas Lights -  I like the idea of LED light strings that rarely need new bulbs but the flicker drives me crazy! Here's the solution for single strings of LEDs all in series  [Copyright © 1998 Wenzel Associates, Inc.]

Audio Controlled Christmas Lights -  Here is a simple circuit to control 110VAC things such as Christmas Lights with low voltage audio. Be careful, high voltage AC can kill you. The basic Idea was to have Christmas lights flash with the music. In my design I use an ordinary amplified computer speaker, a diode bridge, and a ‘CRYDOM’ SSR (Solid State Relay). In order to increase the time that the lights were on as well as protect the SSR I used a Diode Bridge to rectify the signal from the amplifier circuit. [Written by: Alan Parekh]

Bad-bulb finder fixes Christmas lights -  12/01/2014  EDN Design Idea  15 years later, here’s a new take on one of our most popular Design Ideas ever!  [by Dan Meeks]

Christmas Decoration -  This project flashes 18 LEDs at three different rates and you can use these to create a Christmas decoration of your choice. The circuit is kept simple (and cheap!) by using the 4060B IC which is a counter and oscillator (clock) in one package. The circuit requires a 9V supply, such as a PP3 battery  [Designed by John Hewes]

Christmas Lights Tester -  Like every year around the same time, I hurried to get my Christmas tree all set up and the first thing we do when the tree is 'standing' we like to hang the lights in the tree. Okay, better first test them before putting all 50 of them in the tree. Yep! Working beautifully. I started a carefully planned organization of the lights so they would be evenly divided over the branches. Now the second string of lights, tested, yep working. In the tree with them. Putting the plugs into the receptacle andoh no-- one series of them are on in full glory, all the others are out. Annoyed I tried to 'fix them' by trying to push each bulb further into their sockets. Still no go  [written by Jan Hamer]

Christmas Star This project started just before last Christmas when my daughters asked "why don’t we have any flashing Christmas tree lights?" So, while they were out shopping, my son and I grabbed a dozen LEDs, some ribbon cable and a microcontroller. While my son wired up the LEDs, I wrote some simple software. It was all installed and running when they came home after spending all my money (that’s why we didn’t have lights before) ! The smiles on their faces made it all worth while!  [Copyright © Grantronics Pty Ltd]

Christmas Tree (or other plant) Moisture Monitor -  Originally intended to monitor the moisture in a potted plant, this moisture monitor really shines as a Christmas tree stand water level monitor! A fresh Christmas tree drinks water an annoying rate and bending down under the  [Copyright © 1998 Wenzel Associates, Inc.]

Christmas-Tree Lights Tester -  12/23/99  EDN Design Idea   Why is it that you always test 48 bulbs before you find the bad one in a 50-light string? The simple circuit in Figure 1 allows you to divide and conquer, greatly reducing the time it takes to find the bad bulb. The circuit uses a pair of NE2 neon bulbs with current-limiting resistors. You can use a pair of Radio Shack 272-1100 bulb-resistor sets. It's convenient to house the tester in a clear piece of plastic tubing, with the probe tip emerging from one end and a light-duty power cord emerging from the other end  [by William Dias, Brown & Sharpe, North Kingstown, RI]

Electronic Christmas Tree - [electronic Design by Lennie Zink]

Flashing neon Christmas lights -  This flashing set of neon Christmas lights will make an attractive decoration for any time of year. Bl is made up of ten 9-V transistor radio batteries in series. The battery life can be measured in months.

Flashy Christmas Lights -  Schematic only, no circuit description included  [designer's name not included]

LED Christmas lights -  Schematic only, no circuit description  [Designer's name not given]

LED Christmas Lights -  Schematic only, no circuit description included  [designer's name not included]

 

Got Designs?
Please eMail
if you want me to link to and/or post your original design.  Thanks.

Operated Christmas Star -

Simple tester checks Christmas-tree lights -  Why is it that you always test 48 bulbs before you find the bad one in a 50-light string? This simple circuit allows you to divide and conquer, greatly reducing the time it takes to find the bad bulb. [EDN Design Idea] by William Dias, 12/23/1999]

Simple Tester Checks Christmas-Tree Lights -  12/23/99 EDN on Components Why is it that you always test 48 bulbs before you find the bad one in a 50-light string? This simple circuit allows you to divide and conquer, greatly reducing the time it takes to find the bad bulb  [by William Dias, Brown & Sharpe, North Kingstown, RI]

Singing Christmas tree based on Microchip PIC16F84 -  Microcontroller based electronic circuit  [by Aleksander Stare]

Tester Checks Christmas-Tree Lights -  12/23/99 EDN on Components Why is it that you always test 48 bulbs before you find the bad one in a 50-light string? This simple circuit allows you to divide and conquer, greatly reducing the time it takes to find the bad bulb  [by William Dias, Brown & Sharpe, North Kingstown, RI]

Twinkle Twinkle X'mas Star -  Christmas just would not be Christmas if you do not put a flashing star on your Christmas tree. Here is the circuit of such a flashing star. [© EFY Enterprises Pvt. Ltd. All rights reserved]

Xmas Lights Tester -  Like every year around the same time, I hurried to get my Christmas tree all set up and the first thing we do when the tree is 'standing' we like to hang the lights in the tree. Okay, better first test them before putting all 50 of them in the tree. Yep! Working beautifully. I started a carefully planned organization of the lights so they would be evenly divided over the branches. Now the second string of lights, tested, yep working. In the tree with them. Putting the plugs into the receptacle andoh no-- one series of them are on in full glory, all the others are out. Annoyed I tried to 'fix them' by trying to push each bulb further into their sockets. Still no go  [written by Jan Hamer]

Holiday (Fun Circuits)
Christmas Circuits         Halloween Circuits

Please email Holiday Circuits to ME

 


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