If you can solder a little, you can make a christmas tree without hurting any trees. It takes 7 LEDs, some wire and a battery. That's it.
The video below features some LED Christmas Stars as well. The making of the Stars is covered in a separate Instructable.
No video playing? Have a look at it here...
So get your soldering iron, grab your LEDs, find some batteries and kick off the christmas decorating season.
If you're uncertain about your soldering skills: Start with making the star (over here). It's easy. You can do it. Really. Trust me.
Step 1: Stuff and tools
- 6 green LEDs, 5mm dome
- 1 red led, 5mm dome
- 10cm of thin copperwire, insulated.
- Optional: 120 Ohm resistor
If you're new to electronics: buy a assortment of LEDs like this one.
The tree costs about €2,- / US $2,60
Tools and other stuff needed:
- For a template: 5mm plywood or something similar.
- Soldering iron and solder
- Pliers or pincers
- Polymer clay or a third hand to fix parts for soldering
- Multimeter for debugging
Step 2: The circuit of a LED Christmas Tree...
- On the left side of the tree: 3 green LEDs in a row (that is, in series).
- On the right side of the tree: 3 green LEDs in a row.
- On the top one red LED.
What can go wrong?
The easiest mistake to make is connecting the LEDs in the wrong "direction". Have a look at this I'ble (step 2 is about LEDs) if you're not sure about LEDs having a direction...