Tools! You'll also want a soldering iron, solder, wire strippers, flush snips, a panavise or helping hands, a lighter or heat gun. To make an embellishment for your project, grab some fabric and sewing supplies or tools and materials needed for your craft of choice (crochet? knit? felt?)-- anything goes.
You'll need two IR LEDs, two NPN bipolar transistors like our PN2222s, two 100-ohm resistors, a simple pushbutton, a 3xAAA battery holder or lipoly battery, some hookup wire, heat shrink tubing, and an adhesive pinback.
This guide was first published on Dec 19, 2012. It was last updated on Dec 19, 2012.
This page (Parts) was last updated on May 27, 2020.