Saturday, 15 March 2014


Materials:
  • Plastic Tubing – 5/8″ outside diameter – 1/2″ inside diameter
  • Plastic Tubing – 1/2″ outside diameter – 3/8″ inside diameter
  • 1 LED
  • 1 Normally Open Switch
  • 1 20 ohm Resistor – size is determined using Ohm’s law
  • 3 1.5 volt Button Batteries
  • Heat shrink tubing
  • 24 gauge wire
  • Electrician’s tape




References from: Handimania


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