23 comments on “EL Ladder

  1. Pingback: EL-wire "Jacob’s Badder" | Products & Tech News

  2. Looks great Paul! Loved the Lego housing. Now combine this with your awesome slip n slide and you can really scare some folks!

  3. Pingback: EL-wire "Jacob’s Badder" - machine quotidienne

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  5. Cool. I had the same idea (Mad Scientist costume & EL Jacob’s Ladder). Mine’s much simpler & smaller, though. 4-channel sequencer, short lengths of “angel hair” EL, and some fence wire. I placed the sequencer inside a 1×6 cylindrical foam box, and punched the wire through for the rails and sparks. The whole thing was light enough that I could pin it to my lab jacket. So I embroidered a classic “Hello, My Name Is” beside the Ladder and made name tag. Eventually, I think it’ll become an analog clock above my bench. I don’t know if we’re the first — but I saw no others until I stumbled across yours in Make blog.

    Nice work! -E.

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  10. Pingback: Jacob’s Ladder using EL wire - Hack a Day

  11. Pingback: Jacob’s Ladder using EL wire « security bullet

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  13. Great Project! This was an awsome find for me and I plan to build one myself. I wonder where you found the “arc sounds” to use, or how exactly that feature works. Also, what was the total cost of this project? Thanks for putting this on line! Again – Great Project!

  14. The sounds were sampled from some Halloween effects CD I had. It was played back from the Adafruit Wave Shield. It’s not very loud with a small 8 ohm speaker on the Wave Shield, but it still sounds good. I’d say the total cost was between $100 and $150 depending on which components you choose. I could have implemented the whole thing using just the EL Sequencer and some more basic audio module, but I wanted to use readily available kit components. EL wire is fun to play with – good luck with your project and post a link when you’re done!

  15. The Box is made from LEGO bricks that I already had from long ago. I chose black bricks because 1. I had lots of them and 2. I thought it would look better than say a yellow box 🙂

  16. Hi

    Great Job !!

    I’m really bad at electrontics so I was wondering if you would consider building one for me.
    and again WOW

  17. Pingback: EL SEQUENCER | Arduino

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  19. Hi Paul,

    I’m seriously considering building one of these myself as a prop for a production of Frankenstein that I’m designing lights & effects for for a community theater. I’m new to Arduino, but I’ve been tinkering & programming all my life so I’m pretty sure I can handle this without too much difficulty. I do have a question though. I was browsing your source code and I noticed that the “on” and “off” functions are defined like this:

    void off(char channel)
    pinMode(channel, INPUT);
    void on(char channel)
    pinMode(channel, OUTPUT);
    digitalWrite(channel, LOW);

    Can you explain to me why you’re changing the pinMode to input to turn a wire off and the changing it back to output but low to turn it on again? It doesn’t make any sense to me given the definitions of pinMode and digitalWrite on the Arduino website…

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