Instructables
Picture of LED Fireworks
LEDs on the Air.jpg
Nowadays technology changed everything. Things that have been made many years ago are now appearing in a new form with new and modern parts.
So I decided to simulate fireworks with LEDs and made a machine that makes LED fireworks.
It works simple, there are a lot of LEDs that everyone is connected to a capacitor with a resistor, the machine charges the capacitors and a timer drives a motor that strews them around.

 
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Step 1: Things You Need

Picture of Things You Need
Bubble Bag.JPG
To make your own LED fireworks machine you need the following things and tools:
  • Some colorful LEDs
  • Some 1K resistors
  • Some 470uF capacitors (or higher)
  • Two plastic disks
  • Some screws with bolts
  • A long narrow plastic strip
  • 1x 1N4007 Diode
  • 1x 1N4148 Diode
  • 2x 100nF ceramic capacitor
  • 1x TIP122 transistor
  • 1x 50K potentiometer
  • 1x 33K resistor
  • 1x 100K resistor
  • 1x 100uF electrolyte capacitor
  • 1x 3.3uF electrolyte capacitor
  • 1x BC547 transistor
  • 1x 555 IC + socket
  • 1x Simple push button
  • 1x Small motor
  • 1x 9V battery + connector
  • Some wire
  • Foil
  • Drill
  • Screw drivers
  • Soldering iron
  • Soldering oil
  • Soldering wire
  • Glue
  • Pliers
  • Wire cutter
  • A bubble bag
  • Things to make a PCB (if you want to have a circuit board)

Step 2: LEDs

Picture of LEDs
Fire LED 1.JPG
Fire LEDs.JPG
Just solder each LED to a 470uF capacitor with a 1K resistor among them.

Step 3: The Circuit

Picture of The Circuit
There are two timers, one for a short delay before starting the motor and strewing LEDs (about 0.5-3.5 seconds) and one for stopping the motor after a while (about 5 seconds).
The first delay can be changed with a 50K potentiometer.
You can make this circuit by soldering components together (step 4) or by making a PCB (step 5).
Sorry, wrong contest ;D
I assume you're referring to your post in the wedding DIY contest, and I disagree! I've always wanted fireworks at my wedding but they didn't fit in the budget - now they do! :)
agis68 sc7923a3 years ago
I Had fireworks and accidentaly burned my best man 's hair!!!!!!!!
vahid_you2004 (author)  agis683 years ago
By this machine you have fireworks but you won't burn anyone!
nah, you'll just poke all the guest's eyes out...
vahid_you2004 (author)  roland9852 years ago
Yes, if you do this in closed area or near guests certainly you'll poke all the guest's eyes out!!!
Damn. I was going to say that.
cool stuff!! thank you!!
Shanjaq3 years ago
Maybe encase the cap/led/resistor modules in hot-glue to make them more durable and less of a danger to eyeballs =D
jtmjr3 years ago
i could have used this under my tables
I really like the looks of this wish i had seen it before our reception you got my vote :)
keep me in mind when voting i built the 3 tier fruit wedding cake
Kaiven3 years ago
Very cool! Would look like fireworks in the dark. One question: what is that song in the video? :D
br_amar Kaiven3 years ago
That song is from a bollywood movie called "DHOOM"

Here is the song:

http://www.youtube.com/watch?v=9uIz1DFNJnY
vahid_you2004 (author)  Kaiven3 years ago
Thank you.
I don't know; i found this song in a rigntone pack; the file name is Dhoom.mp3
agis683 years ago
Very nice job and well presented. The white disks are handmade right? from what material? (I know are made from plastic) but i mean what plastic??? please give me a response maybe you find me a solution in a big problem with my old scanner!!! You will be my hero you know!
vahid_you2004 (author)  agis683 years ago
I don't khow, the plastic disks was parts of a toy wheel, and the white disk is a thin layer of foil attached with glue to the disk.
It's beautiful , thanks .
But i would have used a copper wrapping around the led's ,
or you could flip the led's to north direction and lay diffrent poles of copper wrapping , the copper is attached the output and input ;)
I didn't say you should have , i only said that i would .
Peace .
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