Embedded Systems Conference
Breaking News
Comments
Newest First | Oldest First | Threaded View
<<   <   Page 5 / 5
Sanjib.A
User Rank
Author
re: Video: Amazing electronic trick (how is this done?)
Sanjib.A   8/28/2011 5:21:48 AM
NO RATINGS
This is very impressive! and I can't think of anything else behind the LED, switch-cap interchange magic other than what my fellow readers have already mentioned...some trick in the sequencing logic. The trick behind the lamps still glows with the battery removed might have been done using hidden supercaps? The last one was a great fun and a great idea! Real demonstration of creative art using electronics!

Duane Benson
User Rank
Author
re: Video: Amazing electronic trick (how is this done?)
Duane Benson   8/27/2011 10:20:33 PM
NO RATINGS
Years ago, I was exhibiting in the COMDEX trade show. The booth opposite mine had a really impressive (for the time) portable computer. I don't recall exactly what it was. Maybe a tablet. It was proudly displayed on a wooden cabinet protected by a plexiglass box over it. Some years later, I read about that particular company in that particular show. It seems the reason they had the unit cover in plexiglass and sitting on a closed cabinet is because all we were seeing was the display. The guts of the portable were actually just a thick cable going to a hidden desktop computer inside the cabinet. Maybe we're seeing a bit of that here.

old account Frank Eory
User Rank
Author
re: Video: Amazing electronic trick (how is this done?)
old account Frank Eory   8/26/2011 9:24:44 PM
NO RATINGS
Agreed, this looks like a case of a simple state machine and the presenter has memorized the sequence of the states. The interesting thing about the no-battery demo was that the presenter only turned on one LED at a time. Whatever coincell battery was hidden probably couldn't handle two or more LEDs simultaneously.

FlyByPC
User Rank
Author
re: Video: Amazing electronic trick (how is this done?)
FlyByPC   8/26/2011 9:00:56 PM
NO RATINGS
Okay, that's impressive -- especially the part involving switching the switch caps. I think it's probably done by a predetermined switch sequence that the presenter memorizes (say, blue/green/red/yellow, then green/blue/red/yellow), mixing it up to throw people off. Power could be provided by a couple CR2032s hidden under the battery box. The lights look like LEDs hidden inside bayonet mountings to me; a battery and small SOT23-package PIC could be fit inside there to respond to switch commands. However it was done, they did a very slick job...

Max The Magnificent
User Rank
Author
re: Video: Amazing electronic trick (how is this done?)
Max The Magnificent   8/26/2011 7:23:11 PM
NO RATINGS
This is really perplexing me ... any ideas?

<<   <   Page 5 / 5


Radio
LATEST ARCHIVED BROADCAST
As data rates begin to move beyond 25 Gbps channels, new problems arise. Getting to 50 Gbps channels might not be possible with the traditional NRZ (2-level) signaling. PAM4 lets data rates double with only a small increase in channel bandwidth by sending two bits per symbol. But, it brings new measurement and analysis problems. Signal integrity sage Ransom Stephens will explain how PAM4 differs from NRZ and what to expect in design, measurement, and signal analysis.

Datasheets.com Parts Search

185 million searchable parts
(please enter a part number or hit search to begin)
Most Recent Comments
andybe
 
Bruzzer
 
Bruzzer
 
CB_EE
 
uv-linkedin
 
CB_EE
 
CB_EE
 
uv-linkedin
 
CB_EE
Like Us on Facebook
Special Video Section
The LTC®6363 is a low power, low noise, fully differential ...
Vincent Ching, applications engineer at Avago Technologies, ...
The LT®6375 is a unity-gain difference amplifier which ...
The LTC®4015 is a complete synchronous buck controller/ ...
10:35
The LTC®2983 measures a wide variety of temperature sensors ...
The LTC®3886 is a dual PolyPhase DC/DC synchronous ...
The LTC®2348-18 is an 18-bit, low noise 8-channel ...
The LT®3042 is a high performance low dropout linear ...
Chwan-Jye Foo (C.J Foo), product marketing manager for ...
The LT®3752/LT3752-1 are current mode PWM controllers ...
LED lighting is an important feature in today’s and future ...
Active balancing of series connected battery stacks exists ...
After a four-year absence, Infineon returns to Mobile World ...
A laptop’s 65-watt adapter can be made 6 times smaller and ...
An industry network should have device and data security at ...
The LTC2975 is a four-channel PMBus Power System Manager ...
In this video, a new high speed CMOS output comparator ...
The LT8640 is a 42V, 5A synchronous step-down regulator ...
The LTC2000 high-speed DAC has low noise and excellent ...
How do you protect the load and ensure output continues to ...