control box is simple to operate and the circuit is easy to understand.
the key switch to the on position (green
power LED will light)
2)Select the channel you wish to fire by
plugging the lead in to the numbered socket on the box (if
there is a circuit the red armed LED will light)
3)Press the fire button on the box and hold it
down until the firework fuse is lit....Kaboom!
4)repeat steps 2 and 3 until all your fireworks
have been fired.
is assuming you have wired your circuits to the connectors on the
back of the box in the respective channels 1 to 30.
end of the fuse wire is connected to the negative terminal of the
battery, the other end of the fuse wire is connected to the positive
terminal of the battery but via a fire button and key switch.
the key switch is in the on position and fire button is pressed
total battery current flows through the fuse wire, thus making it
get hot and setting light to the firework fuse....kaboom!
have a look at the circuit diagram below, you can add as many circuits
as you want i've only drawn 5 in the example below, i've also added
a power LED and an armed
If you change the battery to a higher voltage (i.e. 12v) then you
will need to change the value of the resistors to ensure only 20mA
flows, the 20mA is to light the armed LED to show there is a completed
circuit, any more than 20mA and you could warm up the fuse wire
and set off the firework prematurely!!)