Hi Mike:
Yes, I thought that "cube" implied any face could be the face with the display.
The container that holds the single digit display could be a thin rectangle.
Your reading is more practical and makes the problem much easier and far lower
in cost.
Have Fun,
Brooke Clarke
http://www.PRC68.com
http://www.end2partygovernment.com/Brooke4Congress.html
Mike S wrote:
At 01:04 AM 12/17/2011, Neville Michie wrote...
This clock consists of 6 cubes, each has a digit display on one face.
It does not matter how you arrange them, if they are in a line they
will display the right time. (there may also be a nearby box containing a Rb or
GPS time standard.)
Wow. Looks like nobody takes time to read anymore. All the responses so far act as if the line "each has a digit
display on one face" wasn't even there, and assume the boxes have to figure which side is up and which side to use as
a display.
They just need to figure out where they are in sequence. I'd use a microcontroller in each, to drive the display, and
also to monitor an IR sensor and drive an IR LED. Sensor on the right of each box (as you face the arrangement of
boxes), LED on the left. Box on the right (seconds - ones digit) receives no input from the sensor, knows it's the
rightmost box. It's also the one that keeps time. Displays last digit, passes 5 remaining digits out the IR LED to the
next box. Each box strips the last digit, displays it, sends the remaining ones on. Repeat. Last box receives one
digit, displays it, done. Every time the seconds increment, the rightmost box passes the new time along.
Obviously, if you're thinking of some type of electrical connection between
them, it's the same, only different.
The rest is just details, like how to modulate the signal, receive time from your standard, etc. If you want the digit
changes closely sync'd, figure out the delay through each box, and each one delays the display by the delay
time*number of digits it's passing on (and the first one starts the update sooner to accomodate).
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