Grantronics Projects Christmas Tree:  flashes LEDs mounted to Christmas tree shape PCB, kit from kitsrus.com (added 4/05)

Halloween Flashing-Eyes Badge:  Two-LEDs act as eyes following the rhythm of music or speech.  3V Battery-operated device suitable for pins or badges.  (added 4/08)

Haunted House Effects:  Descriptions of my home-built Halloween haunted house special effects with pictures and spooky links: Light Beam Sensor. (added 07)/05)

Heart of LEDs:  One of the requests we received after publication of the Christmas Star was "can you do different shapes?" Well, with Mother’s Day coming up soon, we thought a heart would be appropriate. Now you can have something different to give to that special Mum or Grandmother. or you may be able to redeem yourself if you forgot St Valentines Day! Either way, the Heart will certainly last a lot longer than the traditional bunch of flowers!... (added 4/05)

How to Make Chase Lights:  This example shows3 track chase lights built from3-Christmas light sets and1-light chaser controller (added 4/05)

LED Mood Light (solorb):  (circuit / schematic design added 2/07)06)

Les Wears His Silicon On His Sleeve (UPDATED):  Gadget Freak Case #73:  Looking for cool way of wowing that special someone on Valentines Day/birthday/whatever? Build her a flashing heart made from LEDs driven by a programmable microcontroller. Les' gadget is simple to build and made from easily-obtainable parts. The unique thing about this design is the LEDs.... (added 2/07)

Mains Operated Christmas Star:  (electronic design / schematic added 2/06)

Scheme Saves String Light Situation:  12/16/04 EDN on Components (added 1/05) As you enter the holiday season with strings of ac-line-powered lights hanging everywhere, do you ever wonder how bulb vendors overcame the frustrating problem of having an entire string go dark when just one of th

Simple Scheme Saves String Light Situation:  12/16/04 EDN on Components (added 1/05) As you enter the holiday season with strings of ac-line-powered lights hanging everywhere, do you ever wonder how bulb vendors overcame the frustrating problem of having an entire string go dark when just one of th

Simple Tester Checks Christmas Tree Lights:  12/16/04 EDN on Components (added 1/05) 1Why 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.

Tester Checks Christmas Tree Lights:  12/16/04 EDN on Components (added 1/05) 1Why 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.

Xmas Lights Tester:  (circuit added 9/04)