Magic: The Mini-magic Switchboard should I make it a kit? - Page 7 - Electronic Circuits Projects Diagrams Free

**Nigel Goodwin** · 21st January 2008, 03:41 PM

Quote:

Originally Posted by wmmullaney

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)

According to the datasheet it's 37KHz, it's explained in the config word section.

Pommie · 21st January 2008, 03:51 PM

I thought it was 48k and controlled by the PCON register. See section 4.2.2.6

Mike.

blueroomelectronics · 21st January 2008, 04:26 PM

Quote:

Originally Posted by wmmullaney

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)

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.

Gaston · 21st January 2008, 04:31 PM

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

Gaston · 21st January 2008, 04:36 PM

i did a quick search and found these http://truckchrome.com/view_prod.asp...y=FREIGHTLINER

they have different colors, i didnt search the whole site...there may be other types on there..and just my 2 cents worth...i think the screw in bulbs add to the illusion

Pommie · 21st January 2008, 04:36 PM

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.

blueroomelectronics · 21st January 2008, 04:41 PM

Quote:

We've included another routine using four white bulbs and playing cards. The bulbs tell you which spectator picked each card. Instead of four playing cards you can use four different objects or product cards. Great for trade shows! The board measures 16 inches by 9 inches. Harry Anderson has used it on TV's Tonight show and The Late Late Show.

I wonder what the playing card variation trick is?

bananasiong · 21st January 2008, 04:58 PM

Quote:

Originally Posted by Pommie

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.

ahahhaa

The game will become more magically

So for sure, the magnet has nothing to do with it

picasm · 21st January 2008, 05:10 PM

Here is some more info on making it from a Dutch electronics forum:
http://www.circuitsonline.net/forum/...ruuk+gloeilamp

Unfortunately I cannot read Dutch. The Babel Fish or Google translators can translate some of it.
Nice to just look at the photos of some of their design ideas though.

**Nigel Goodwin** · 21st January 2008, 05:39 PM

Quote:

Originally Posted by blueroomelectronics

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.

Interesting, the datasheet I looked at said 37KHz?, perhaps it wasn't for the 'a' version?.

**3v0** · 21st January 2008, 05:43 PM

The large unit on the dutch page is quite impressive.

**3v0** · 21st January 2008, 06:04 PM

Quote:

Originally Posted by blueroomelectronics

I wonder what the playing card variation trick is?

I would think it is a same song second verse sort of thing.

In the original trick the operator teaches the machine the order of the bulbs.

A good magician can ensure that he knows what cards people draw with various methods.

If the operator knows what cards (or products) people hold it is a simple matter to light the bulb that corresponds to the switch keyed to what they hold.

Could be wrong.

Super_voip · 21st January 2008, 06:20 PM

possibly something like a Dallas 1-wire memory chip? The magnet and screw holders to ensure a good contact, for the switches you could then use the case as the pickup.

Hero999 · 21st January 2008, 06:25 PM

I don't get you, why would you need a 1-wire memory chip?

The switch caps and bulbs aren't bugged you know.

It seems like you haven't read first three pages of this thread

blueroomelectronics · 21st January 2008, 09:33 PM

Nice photo with PIC from the Dutch forums

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21st January 2008, 03:51 PM	(permalink)
Pommie	I thought it was 48k and controlled by the PCON register. See section 4.2.2.6 Mike.

21st January 2008, 04:31 PM	(permalink)
Gaston	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

21st January 2008, 04:36 PM	(permalink)
Gaston	i did a quick search and found these http://truckchrome.com/view_prod.asp...y=FREIGHTLINER they have different colors, i didnt search the whole site...there may be other types on there..and just my 2 cents worth...i think the screw in bulbs add to the illusion

21st January 2008, 05:10 PM	(permalink)
picasm	Here is some more info on making it from a Dutch electronics forum: http://www.circuitsonline.net/forum/...ruuk+gloeilamp Unfortunately I cannot read Dutch. The Babel Fish or Google translators can translate some of it. Nice to just look at the photos of some of their design ideas though.

21st January 2008, 05:43 PM	(permalink)
3v0	The large unit on the dutch page is quite impressive. __________________ search engine for electronic parts Junebug USB PIC programmer kit., USB Bit Wacker, 3v0's Homepage The 15 Minute Printed Circuit Board! (+drill time)

21st January 2008, 06:20 PM	(permalink)
Super_voip	possibly something like a Dallas 1-wire memory chip? The magnet and screw holders to ensure a good contact, for the switches you could then use the case as the pickup.

21st January 2008, 06:25 PM	(permalink)
Hero999	I don't get you, why would you need a 1-wire memory chip? The switch caps and bulbs aren't bugged you know. It seems like you haven't read first three pages of this thread __________________ I also post at the following sites: http://www.stop-microsoft.org http://www.heated-debates.com Screen name: Aloone_Jonez And http://www.silicontronics.com, same screen name as here.

21st January 2008, 09:33 PM	(permalink)
blueroomelectronics	Nice photo with PIC from the Dutch forums __________________ Bill Smart Kits build Smart People http://www.blueroomelectronics.com