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This wreath is made out of 101 LEDs and two pieces of wire, with no other components. It can run on a 9-volt battery.
A chance encounter with a 100-pack of green LEDs inspired my daughter and me to make an wreath totally out of LEDs. We wound up using 96 of the green ones, plus 5 red LEDs left over from a previous flea market visit, for a total of 101 LEDs.
It can be twisted together without tools, but soldering makes it sturdier and a pair of needle-nosed pliers and a third hand jig will make it easier.
ROHS LEDs (about a dollar more per pack) and lead-free solder is always an option, or just wash your hands and don't stick your fingers in your mouth.
A chance encounter with a 100-pack of green LEDs inspired my daughter and me to make an wreath totally out of LEDs. We wound up using 96 of the green ones, plus 5 red LEDs left over from a previous flea market visit, for a total of 101 LEDs.
It can be twisted together without tools, but soldering makes it sturdier and a pair of needle-nosed pliers and a third hand jig will make it easier.
ROHS LEDs (about a dollar more per pack) and lead-free solder is always an option, or just wash your hands and don't stick your fingers in your mouth.
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Signing UpStep 1Parts and Tools Required
The parts
100 Green LEDs
5 Red LEDs
A few feet of solid tinned hook-up wire, small gauge such as #26.
Use tinned wire, as plain copper wire would be a distracting color. You may also find special-purpose "bus wire" but don't use a gauge that's too big as it will be hard to sew.
Also Starring
You'll need a power supply or batteries capable of delivering about 0.6-1 amp at 8-10 volts, but that design is not included in this Instructable. Instead, you might like this Super-Simple LED Driver Instructable. Or just use a 9V battery.
For testing the LEDs during construction, If you don't have a power supply, you'll also need one slightly-depleted 9V battery or one fresh 9V battery and a 330 Ohm resistor.
The Tools
To finish the job, you'll need the following tools:
Solder and iron if you wish to solder (recommended but not necessary)
Needle-nosed pliers with wire cutter
Third hand jig (or make your own
Alligator-clip test leads
100 Green LEDs
5 Red LEDs
A few feet of solid tinned hook-up wire, small gauge such as #26.
Use tinned wire, as plain copper wire would be a distracting color. You may also find special-purpose "bus wire" but don't use a gauge that's too big as it will be hard to sew.
Also Starring
You'll need a power supply or batteries capable of delivering about 0.6-1 amp at 8-10 volts, but that design is not included in this Instructable. Instead, you might like this Super-Simple LED Driver Instructable. Or just use a 9V battery.
For testing the LEDs during construction, If you don't have a power supply, you'll also need one slightly-depleted 9V battery or one fresh 9V battery and a 330 Ohm resistor.
The Tools
To finish the job, you'll need the following tools:
Solder and iron if you wish to solder (recommended but not necessary)
Needle-nosed pliers with wire cutter
Third hand jig (or make your own
Alligator-clip test leads
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i hope you enyou it.
http://www.youtube.com/watch?v=lJtLA7EfgGQ
If you want to do something to show in a video, a PWM power supply like this might be fun: http://www.instructables.com/id/SKGS2GVFOVX0VOK/
For the red LEDs, they are 5 in series. Voltage drop for red LEDs is about 1.7v, which is lower than for green (~2.2v), so 5 red in series is a little brighter than 4 green at the same supply voltage. See http://www.instructables.com/community/Green-Led-voltage/
If your 5 red LEDs are too bright reduce the current by putting in a small resistor (10 ohms, 1/8th watt or more) in series with the 5 red LEDs.
+ - + - + - + - + -
--|>|-- --|>|-- --|>|-- --|>|-- --|>|--
Connect the left end (+) to the inner ring of the wreath.
Connect the right end (-) to the outer ring of the wreath.
In my wreath design, the red LEDs are always on, and do not blink. You could use a timer circuit to blink just the red ones together. If you want the red ones to flash individually, you will need a more complicated circuit.
Does this help?
i think that i now how to coneckt them now :)