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Topic: Coolest alarm clock ever seen? (Read 1 time) previous topic - next topic

robtillaart


Never seen such an alarm clock - http://www.gizmag.com/voltmeter-alarm-clock/40685/


image from gizmag..
Rob Tillaart

Nederlandse sectie - http://arduino.cc/forum/index.php/board,77.0.html -
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MorganS

Now is it a microprocessor or just a big capacitor?

I particularly like the big slap-switch control.
"The problem is in the code you didn't post."

robtillaart

probably microprocessor with 2 PWM outputs - low pass filter
Rob Tillaart

Nederlandse sectie - http://arduino.cc/forum/index.php/board,77.0.html -
(Please do not PM for private consultancy)

AWOL

probably microprocessor with 2 PWM outputs - low pass filter
The low pass filters can be formed by the large mass formed by the meter movement - I have an hh:mm:ss meter clock with just load resistors on PWM outputs.

weedpharma

Fair enough. Time is analogue isn't it?

Weedpharma

AWOL

Fair enough. Time is analogue isn't it?

Weedpharma
Planck says not. ;)

robtillaart

Planck says not. ;)
One Planck time is the time it would take a photon traveling at the speed of light in a vacuum to cross a distance equal to one Planck length. Theoretically, this is the smallest time measurement that will ever be possible, roughly 10−43 seconds. Within the framework of the laws of physics as we understand them today, for times less than one Planck time apart, we can neither measure nor detect any change. As of May 2010, the smallest time interval uncertainty in direct measurements is on the order of 12 attoseconds (1.2 × 10−17 seconds), about 3.7 × 1026 Planck times.

source - https://www.quora.com/What-is-the-significance-of-Plancks-time

Although it is theoretically the smallest measurable time, it is no proof time itself is quantized...
Rob Tillaart

Nederlandse sectie - http://arduino.cc/forum/index.php/board,77.0.html -
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Robin2

it is no proof time itself is quantized...
Of course it is quantized. My clock moves forward once per second.

...R
Two or three hours spent thinking and reading documentation solves most programming problems.

robtillaart

Of course it is quantized. My clock moves forward once per second.

...R
Q.E.D.
Rob Tillaart

Nederlandse sectie - http://arduino.cc/forum/index.php/board,77.0.html -
(Please do not PM for private consultancy)

Coding Badly


robtillaart

Rob Tillaart

Nederlandse sectie - http://arduino.cc/forum/index.php/board,77.0.html -
(Please do not PM for private consultancy)

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