Instructables
Picture of Father's day LED Tie
A tie might not be the most original Father's day gift, but what father could resist a tie that makes him stand out from the crowd like this one:





 
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Step 1: Things you will need

This is an application of the "Tiny Wearable LED Kit" that I produced for the kit challenge recently.  For details of the circuit, programing etc, please see this instructable.

In this instructable, I am going to use some thin stainless steel wire to integrate the kit into a tie for father's day.  Arguably this might be better done with conducting thread but I don't have any and the very thin wire works rather well.

You will need:

A made-up Tiny Wearable LED Kit from this instructable
12 ultra-bright blue LEDs (white, violet, UV or blue-green will also work.  Don't choose red, orange or yellow*) 
A made-made fibre tie (please don't use your dad's best silk tie - it's harder to make and he might not thank me too much)
Around 2m of thin stainless steel wire


Tools:

Needle
Thread
Soldering iron & solder
M4 machine screw
Small vice grips
Heat source (blowtorch)
Heat-proof board
Small heat-proof scrap (e.g. small piece of tile)
Two small (1.5 x 2.5 cm) pieces of iron-on meding fabric  (or ordinary fabric if you are prepared to do a bit more sewing)
nail varnish
self-amalgamating tape ( optional - few cms only)


* You could probably make these work with some small resistors but that's a dozen extra parts and I haven't tried it.  See step 4 (LEDs) for speculation on resistor values.
 
edwin9942 years ago
what kind of IC you use?
can you give me the detail of this circuit?

thank you ^^
Ugifer (author)  edwin9942 years ago
Complete details with schematic, board layout, code etc is all in this 'ible:

http://www.instructables.com/id/Tiny-Wearable-LED-kit-12-PWM-LEDs-from-a-reproga/

Cheers

Ugi