This instructable is a modified version of the various LED Sun Jar and Night Light instructables on this site. This is my first instructable posted and is really just a proof of concept at the moment. Revision plans have already started.
This particular version is switchable between 1, 2 or 3 lights. The parts list, as I made it, is as follows:
1 x Red 10mm clear LED ($0.90 AUD)
1 x Green 10mm clear LED ($2.70 AUD)
1 x Blue 10mm clear LED ($2.60 AUD)
1 x 180 ohm resistor ($0.38 AUD 8pack)
1 x 240 ohm resistor ($0.38 AUD 8pack)
1 x 150 ohm resistor ($0.38 AUD 8pack)
2 x diodes ($0.38 AUD 4pack)
1 x 9v battery ($5.65 AUD)
1 x 9v battery snap ($0.29 AUD)
1 x single pole sealed rotary switch (set to 4 position) ($2.95)
1 x Clear glass jar (I used an old coffee jar)
1 x Empty aluminium can
Broken glass (How much is needed will depend on the size of he jar)
0.12mm wire (To connect everything. USE A LIGHT INSULATION COLOUR)
Circuit diagram below is what I drew up after a brief discussion with the guys at work. (Thanks also to the guys at Jaycar for giving me a crash course in resistors)
Step 1: Assemble the wiring
Due to unforeseen inebriation, the taking of pictures had been forgotten.
Assemble the components as per the wiring diagram below. Bear in mind that the LEDs will be inserted at different levels. So varying lengths of wire may be needed.
Initially I made all the lengths the same, which was the total height of the jar. so any every LED is the same distance away from the switch when held up. This allows for any LED to be at any level but causes some minor problems with the slack being pushed up into the lid.