1. Welcome to our site! Electro Tech is an online community (with over 170,000 members) who enjoy talking about and building electronic circuits, projects and gadgets. To participate you need to register. Registration is free. Click here to register now.
    Dismiss Notice

Magic: The Mini-magic Switchboard should I make it a kit?

Discussion in 'Electronic Projects Design/Ideas/Reviews' started by blueroomelectronics, Jan 18, 2008.

  1. blueroomelectronics

    blueroomelectronics Well-Known Member

    Joined:
    Jan 21, 2007
    Messages:
    12,536
    Likes:
    170
    Location:
    Toronto, Canada
    Off PCB toggle switches are pretty common. SPST is all one needs.
     
  2. 3v0

    3v0 Coop Build Coordinator Forum Supporter

    Joined:
    Jul 14, 2006
    Messages:
    9,404
    Likes:
    227
    Location:
    OKLAHOMA USA
    Knife switches are cool but I do not think they go well with the illusion. The regular switches and bulbs make people think it is simple not strange.

    I have seen switches with handles like a rod. One could slip caps over them but you would have to find or make the caps. Maybe heat shrink oVer a tube with a magnet sort of thing. Or maybe polyclay.
     
    Last edited: Jan 20, 2008
  3. blueroomelectronics

    blueroomelectronics Well-Known Member

    Joined:
    Jan 21, 2007
    Messages:
    12,536
    Likes:
    170
    Location:
    Toronto, Canada
    Coloured (painted) washers might work.
     
  4. dave

    Dave New Member

    Joined:
    Jan 12, 1997
    Messages:
    -
    Likes:
    0


     
  5. Marks256

    Marks256 New Member

    Joined:
    Jul 14, 2006
    Messages:
    2,350
    Likes:
    9
    Location:
    Minnesota, USA

    Or small painted wooden dowels with holes drilled in the bottoms with a magnet in them.
     
  6. kchriste

    kchriste New Member Forum Supporter

    Joined:
    Jul 23, 2006
    Messages:
    3,677
    Likes:
    47
    Location:
    Victoria BC, Canada
  7. blueroomelectronics

    blueroomelectronics Well-Known Member

    Joined:
    Jan 21, 2007
    Messages:
    12,536
    Likes:
    170
    Location:
    Toronto, Canada
    This one uses a plastic washer approach.
    [​IMG]
     
  8. 3v0

    3v0 Coop Build Coordinator Forum Supporter

    Joined:
    Jul 14, 2006
    Messages:
    9,404
    Likes:
    227
    Location:
    OKLAHOMA USA
    They would be great, do you know who stocks them. Digikey has there products but does not stock these.

    I sort of missed what you were talking about on the SMD solder pads. The concept is/was new to me. I took a while but I got it. Thanks
     
  9. kchriste

    kchriste New Member Forum Supporter

    Joined:
    Jul 23, 2006
    Messages:
    3,677
    Likes:
    47
    Location:
    Victoria BC, Canada
    That's where I found them.... Didn't notice the non-stock issue. :eek:
    Bill's idea of colored washers is looking better and better. Just choose an oversized washer that fits over the switch, paint it and drop it over the bat on a toggle switch so it settles on the mounting shaft.
    Where I used to work they used SMD jumpers on all their PCBs for rarely used options and regular 0.1" header types for more commonly used options.
     
    Last edited: Jan 20, 2008
  10. 3v0

    3v0 Coop Build Coordinator Forum Supporter

    Joined:
    Jul 14, 2006
    Messages:
    9,404
    Likes:
    227
    Location:
    OKLAHOMA USA
    I will be using the washers at least to start with.
    But I do think that the removable handles are better for the illusion. It makes the prey think they are fixed to start with.

    Rev 1B now uses SMD jumpers. See previous post.
    Anyone who wants to do their own board should download Eagle 4.92 and print directly from it. The foil provided here should work but is not as neat.
     
    Last edited: Jan 20, 2008
  11. wmmullaney

    wmmullaney New Member

    Joined:
    Dec 11, 2006
    Messages:
    364
    Likes:
    6
    Location:
    USA
    Bill, you mentioned a pic16f628a at 35 k hertz, how do you tell the pic to operate at that speed? (It is NOT in the configuration word)
     
  12. Nigel Goodwin

    Nigel Goodwin Super Moderator Most Helpful Member

    Joined:
    Nov 17, 2003
    Messages:
    39,331
    Likes:
    653
    Location:
    Derbyshire, UK
    According to the datasheet it's 37KHz, it's explained in the config word section.
     
  13. Pommie

    Pommie Well-Known Member Most Helpful Member

    Joined:
    Mar 18, 2005
    Messages:
    10,161
    Likes:
    340
    Location:
    Brisbane Australia
    I thought it was 48k and controlled by the PCON register. See section 4.2.2.6

    Mike.
     
  14. blueroomelectronics

    blueroomelectronics Well-Known Member

    Joined:
    Jan 21, 2007
    Messages:
    12,536
    Likes:
    170
    Location:
    Toronto, Canada
    Most PICs with a programmable oscillator are 31.25kHz, I recalled the 16F628A has an odd frequency (not 31.25kHz)
    It's infact like Pommie said 48KHz.
    That said the current the PIC uses compared to the bulbs is trivial.
     
  15. Gaston

    Gaston Member

    Joined:
    Jun 8, 2004
    Messages:
    472
    Likes:
    3
    Location:
    USA
    you may want to check some of the autopart stores for the toggles switches. especialy truck stops or truck accessory stores. thats the kind of switches you see in road tractors
     
  16. Gaston

    Gaston Member

    Joined:
    Jun 8, 2004
    Messages:
    472
    Likes:
    3
    Location:
    USA
  17. Pommie

    Pommie Well-Known Member Most Helpful Member

    Joined:
    Mar 18, 2005
    Messages:
    10,161
    Likes:
    340
    Location:
    Brisbane Australia
    I think that pieces of coloured tape in front of each switch would maybe improve the illusion. Imagine the amazement when you say "go on then, move the sticky tape around".

    Mike.
     
  18. blueroomelectronics

    blueroomelectronics Well-Known Member

    Joined:
    Jan 21, 2007
    Messages:
    12,536
    Likes:
    170
    Location:
    Toronto, Canada
    I wonder what the playing card variation trick is?
     
  19. bananasiong

    bananasiong New Member

    Joined:
    Mar 7, 2006
    Messages:
    1,893
    Likes:
    7
    Location:
    Malaysia
    ahahhaa:D
    The game will become more magically :D
    So for sure, the magnet has nothing to do with it;)
     
  20. picasm

    picasm Member

    Joined:
    Sep 6, 2006
    Messages:
    358
    Likes:
    3
    Location:
    UK
  21. Nigel Goodwin

    Nigel Goodwin Super Moderator Most Helpful Member

    Joined:
    Nov 17, 2003
    Messages:
    39,331
    Likes:
    653
    Location:
    Derbyshire, UK
    Interesting, the datasheet I looked at said 37KHz?, perhaps it wasn't for the 'a' version?.
     

Share This Page