Oh, I should point out, for the LEDs, you need to have the red lead on the positive side, and the black on the negative side - if you put them in backwards, they won't be damaged, but they won't work either.
One thing which is missing is a "battery hooked up backwards" indicator. Since the LEDs won't work if the battery is backwards (though the firing circuit will work just fine), you probably want to make certain the battery is hooked up correctly. If your jump starter has an accessory socket (cigarette lighter...), you can get a connector for that from RadioShack and use it. Or, we can work a diode and buzzer into the circuit which will buzz if the battery is hooked up backwards. Or, you can color code the terminal clips. On my controller, I have red & black clips and just do it correctly.
Kevin
One thing which is missing is a "battery hooked up backwards" indicator. Since the LEDs won't work if the battery is backwards (though the firing circuit will work just fine), you probably want to make certain the battery is hooked up correctly. If your jump starter has an accessory socket (cigarette lighter...), you can get a connector for that from RadioShack and use it. Or, we can work a diode and buzzer into the circuit which will buzz if the battery is hooked up backwards. Or, you can color code the terminal clips. On my controller, I have red & black clips and just do it correctly.
Kevin