Magic: The Mini-magic Switchboard should I make it a kit? - Page 3 - Electronic Circuits Projects Diagrams Free

**3v0** · 19th January 2008, 06:43 PM

There is one section where the magician uses slight of hand.

The magician puts two caps in each hand and asks the assistant to pick one hand.
The magician discards two caps and distributes the remaining caps such that he has one in each hand.
The assistant picks a hand and the magician gives him the red switch cap.
The assistant puts the red cap on a switch.
The magician flips that switch and the red lamp lights.

Can you figure out how that is done ?

Leftyretro · 19th January 2008, 06:51 PM

Quote:

Originally Posted by 3v0

There is one section where the magician uses slight of hand.

The magician puts two caps in each hand and asks the assistant to pick one hand.
The magician discards two caps and distributes the remaining caps such that he has one in each hand.
The assistant picks a hand and the magician gives him the red switch cap.
The assistant puts the red cap on a switch.
The magician flips that switch and the red lamp lights.

Can you figure out how that is done ?

No and if someone doesn't spill the beans in a clear way soon I'm going to be pissed

PM me if you don't want to spoil to for others
Lefty

bananasiong · 19th January 2008, 06:53 PM

Quote:

Originally Posted by Leftyretro

No and if someone doesn't spill the beans in a clear way soon I'm going to be pissed

PM me if you don't want to spoil to for others
Lefty

Can't you see Bill's reply with some hidden message?

**3v0** · 19th January 2008, 07:09 PM

Quote:

Originally Posted by Leftyretro

No and if someone doesn't spill the beans in a clear way soon I'm going to be pissed

PM me if you don't want to spoil to for others
Lefty

I PM'ed you the answer to how the machine works.

It would be good for others to figure it out.

wombweller · 19th January 2008, 07:32 PM

Hi all

G!! this is just killing me

I wished I had all Bill's knowledge and I would try and work the trick out for myself.

Come on please , please , please tell me, even PM. if you have to.
I'm sure your not a member of the Magic circle??

Mark

Hero999 · 19th January 2008, 07:36 PM

I'm such a dummy, it's obvious!

It's about the predetermined sequence of the bulbs (left to right) which dictates which switch he flips.!

I think the slight of hand confused me, so it had to be the red cap or it wouldn't have worked.

Perhaps having it left to right all the time is too obvious (well even if it did fool a mug like me

), it could just be left to right the first time, then some other order the second time which could be altered using a secret switch hidden in the battery compartment. The only problem would be that we still want the final sequence to be left to right, this could be fixed by programming it completely reset after a certain number of iterations.

blueroomelectronics · 19th January 2008, 07:50 PM

Yes you could set a special reset sequence for right to left, but it fools most.

wmmullaney · 19th January 2008, 08:40 PM

It's a cool toy, not worth anywhere near $500 though.

PS How many do ya think they sold?

Hero999 · 19th January 2008, 08:46 PM

It's probably so expensive because it's hand made and they only sell a few a week.

It does look high quality though.

I built a PIC programmer ages ago and haven't used it so this looks like a great idea for my first PIC project.

**3v0** · 19th January 2008, 08:48 PM

This is how I described the action.

Use a learning mode and a playback mode.

After 10 or so seconds with all switches off it forgets and goes back to the learning mode.

In the leaning mode the operator must flip the switches in the same order as the bulbs sequence from left to right.

Once the 4th switch is flipped (learning sequence complete) the system enters the playback mode. Each switch will light the bulb that it lit during the learning mode.

wmmullaney · 19th January 2008, 08:53 PM

Thats sorta how I put it, I deleted my post so you would figure it out on your own.

Marks256 · 19th January 2008, 08:57 PM

Oh..... That makes sense. Bill, let us know an estimate of cost. This would be fun to confuse people with....

wmmullaney · 19th January 2008, 09:00 PM

I'm just going to build one. That's an awesome trick!!!!

blueroomelectronics · 19th January 2008, 09:24 PM

Sure, you'll need 4 switches with removeable colored caps, 4 colored light bulbs, 4 driving transistors & a PIC16F628A would be a good choice IMO. A 0.1uf, 1n4148 (drops the voltage a weebit) and 4xAA would be perfect. Run the bulbs directly from the batteries and through a 2N2222A with a 470ohm base resistor should make 6v blubs glow brightly enough.
Software should be pretty stright forward.

For extra points use the 38khz internal clock (low power, shorter delay loops) and the wake up on portb (with pullups too) and your Magic box will run for ages on a set of batteries and won't need a power switch.

Hero999 · 19th January 2008, 09:57 PM

Normally I'd suggest LEDs for this sort of thing but in this case incandescents are a must as we want it to look as low-tech as possible.

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19th January 2008, 06:43 PM	(permalink)
3v0	There is one section where the magician uses slight of hand. The magician puts two caps in each hand and asks the assistant to pick one hand. The magician discards two caps and distributes the remaining caps such that he has one in each hand. The assistant picks a hand and the magician gives him the red switch cap. The assistant puts the red cap on a switch. The magician flips that switch and the red lamp lights. Can you figure out how that is done ?

19th January 2008, 07:32 PM	(permalink)
wombweller	Hi all G!! this is just killing me I wished I had all Bill's knowledge and I would try and work the trick out for myself. Come on please , please , please tell me, even PM. if you have to. I'm sure your not a member of the Magic circle?? Mark

19th January 2008, 07:36 PM	(permalink)
Hero999	I'm such a dummy, it's obvious! It's about the predetermined sequence of the bulbs (left to right) which dictates which switch he flips.! I think the slight of hand confused me, so it had to be the red cap or it wouldn't have worked. Perhaps having it left to right all the time is too obvious (well even if it did fool a mug like me ), it could just be left to right the first time, then some other order the second time which could be altered using a secret switch hidden in the battery compartment. The only problem would be that we still want the final sequence to be left to right, this could be fixed by programming it completely reset after a certain number of iterations. __________________ 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.

19th January 2008, 07:50 PM	(permalink)
blueroomelectronics	Yes you could set a special reset sequence for right to left, but it fools most. __________________ Bill Smart Kits build Smart People http://www.blueroomelectronics.com

19th January 2008, 08:40 PM	(permalink)
wmmullaney	It's a cool toy, not worth anywhere near $500 though. PS How many do ya think they sold? __________________ Regards, William Mullaney "HOPE for the best, EXPECT the worst, ACCEPT whatever comes." http://wiliamsville.myminicity.com/ http://wiliamsville.myminicity.com/ind/ http://wiliamsville.myminicity.com/tra/ http://wiliamsville.myminicity.com/sec/

19th January 2008, 08:46 PM	(permalink)
Hero999	It's probably so expensive because it's hand made and they only sell a few a week. It does look high quality though. I built a PIC programmer ages ago and haven't used it so this looks like a great idea for my first PIC project. __________________ 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.

19th January 2008, 08:48 PM	(permalink)
3v0	This is how I described the action. Use a learning mode and a playback mode. After 10 or so seconds with all switches off it forgets and goes back to the learning mode. In the leaning mode the operator must flip the switches in the same order as the bulbs sequence from left to right. Once the 4th switch is flipped (learning sequence complete) the system enters the playback mode. Each switch will light the bulb that it lit during the learning mode.

19th January 2008, 08:53 PM	(permalink)
wmmullaney	Thats sorta how I put it, I deleted my post so you would figure it out on your own. __________________ Regards, William Mullaney "HOPE for the best, EXPECT the worst, ACCEPT whatever comes." http://wiliamsville.myminicity.com/ http://wiliamsville.myminicity.com/ind/ http://wiliamsville.myminicity.com/tra/ http://wiliamsville.myminicity.com/sec/

19th January 2008, 08:57 PM	(permalink)
Marks256	Oh..... That makes sense. Bill, let us know an estimate of cost. This would be fun to confuse people with.... __________________ There is no "I" in "team", unless Apple makes it... Then it would be iTeam.

19th January 2008, 09:00 PM	(permalink)
wmmullaney	I'm just going to build one. That's an awesome trick!!!! __________________ Regards, William Mullaney "HOPE for the best, EXPECT the worst, ACCEPT whatever comes." http://wiliamsville.myminicity.com/ http://wiliamsville.myminicity.com/ind/ http://wiliamsville.myminicity.com/tra/ http://wiliamsville.myminicity.com/sec/

19th January 2008, 09:24 PM	(permalink)
blueroomelectronics	Sure, you'll need 4 switches with removeable colored caps, 4 colored light bulbs, 4 driving transistors & a PIC16F628A would be a good choice IMO. A 0.1uf, 1n4148 (drops the voltage a weebit) and 4xAA would be perfect. Run the bulbs directly from the batteries and through a 2N2222A with a 470ohm base resistor should make 6v blubs glow brightly enough. Software should be pretty stright forward. For extra points use the 38khz internal clock (low power, shorter delay loops) and the wake up on portb (with pullups too) and your Magic box will run for ages on a set of batteries and won't need a power switch. __________________ Bill Smart Kits build Smart People http://www.blueroomelectronics.com

19th January 2008, 09:57 PM	(permalink)
Hero999	Normally I'd suggest LEDs for this sort of thing but in this case incandescents are a must as we want it to look as low-tech as possible. __________________ 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.