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Fireworks Controller

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Step 14: Finished board

Picture of Finished board
To operate the board:
  • make sure battery is disconnected and all switches are on the off position
  • connect all of the ignition wires, one per channel:
1- Plug in each ignition wire pair to one black and one red speaker terminal. Use the side that is stripped, but doesn't have an alligator clip.
2- On the other side connect an igniter using the alligator clips, one on each wire.
  • connect the battery
  • insert key into the main on/off keyswitch and turn to on
  • turn toggle switch to test, make sure green lights are turned on for each channel that you have something connected to, if not check your connections and make sure the ignitor is securely attached to the launch wires.
  • clear the area around the fireworks and make sure you are at a safe distance from people, animals, cars, houses, trees, dry grass, etc. (the normal precautions)
  • once all connected channels have green lights, flip the toggle switch to arm
  • the red LEDs will turn on, and at this point pressing a pushbutton will supply full power to the ignitor, setting off the firework.
  • once a firework is detonated, if the ignitor burned completely, the red light will turn off and you will know that that firework has already been used.

Shutting down:
  • Turn the toggle switch to the off position
  • Turn the keyswitch to the off position and remove the key (put it in your pocket)
  • Disconnect the battery
  • Unplug each of the long wires from each channel that lead to the fireworks
  • Dispose of burned ignitors
 
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IcedZ2 years ago
Great instructable, but you definitely needed to be more clear on what the ignitors were. I wouldn't have known without the other commenter asking.
KaydenST2 years ago
What are the ignitors? Are they the ones you use in model rockets? And if they are, how would you attach it to the fuse?
Oh, and when I say fuse, I mean the wick on the firework that you light.
Mr.KC2 years ago
I built a 15 channel controller last year based on this design. It worked beautifully! However, this year it's not working. The lights light up but when I press the button, nothing happens. There's enough juice in the battery because if I bypass the controller and connect the lead to the battery, it works. I looked and I can't seem to find any loose connections. Any help?
Arduino Guy3 years ago
you can reuse the wire in the ignitor, just sand off the black stuff. and rewind on another match.
mesmes4 years ago
Hi,

You wrote once a firework is detonated, if the ignitor burned completely, the red light will turn off and you will know that that firework has already been used.

I make the circuit to one channel and it works properly. The think i want to know is that when you press the push button, the red light  will turn off only for the second that you press the button or it will stay off once it is already been used?
muadeeb mesmes3 years ago
The red light will go out when you push the button, and will remain out provided the ignitor completely burned.
Arirox4 years ago
So, we just put a wire to where the fuse would be but we dont put the fuse it then solder the wires to the battery to it then just clip it on/off the battery?
Arirox4 years ago
wait so do we put the fuse in or not??
hemmikarl4 years ago
"turn toggle switch to test, make sure green lights are turned on for each channel that you have something connected to, if not check your connections and look for a short" If there is a short in the speaker wires the green light will still turn on, so it only tests that something is connected and if the battery works (at least like I see the schematic) otherwise it is a great project
systemf92 (author)  hemmikarl4 years ago
thank you, I'll change the wording in that sentence right now.
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