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step dependant indicator lights circuit question

Discussion in 'LEDs and Optoelectronics' started by bluemarshall, Jun 5, 2012.

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  1. bluemarshall


    May 30, 2012

    I'm building a firing system for fireworks and I am currently wiring in all the safety switches and arming toggles. What i would like is so that at each switch/toggle, there is an indicator light that goes on when the switch/toggle is thrown. The lights will be dependent on the previous switch/toggle being thrown. From the power supply forward i have 2 key switches ( which i would love it if they each had an independent indicator light ), then a flip cover safety toggle which depends on BOTH switches being on, then i have a 3 way arming toggle ( firing-off-testing ) which depends on BOTH key switches AS WELL AS safety toggle being on. I have a 12VDC source. What does this circuit look like? Any help would be appreciated.

  2. BobK


    Jan 5, 2010
    Like this:

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