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Old 06-23-2012, 08:04 PM   #1
sigster
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E-Ink Watches nice to have on my Kindle

Hi

maybe something for Kindle Fan E-Ink Watches
Thing I will get me one of this
http://technabob.com/blog/2009/06/17...-not-a-kindle/

have anyone try to make fullscreen Clock on Kindle ??
something to use when you stop use your old Kindle to read


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Sigster
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Old 06-23-2012, 09:14 PM   #2
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Old 06-23-2012, 10:42 PM   #3
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Here's a E-Paper watch that interacts with your android phone: http://www.kickstarter.com/projects/...droid?ref=live

More info here: http://getpebble.com/

Last edited by Edward_R; 06-23-2012 at 10:45 PM. Reason: Added second link
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Old 06-23-2012, 11:07 PM   #4
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Edward beat me to the punch. I was going to mention the Pebble which looks a LOT better than the one in the OP. Granted, I don't think those Phosphor watches look terrible... But, I would take the Pebble over it any day of the week.
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Old 06-24-2012, 12:45 PM   #5
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Agreed, the watches in the OP are ugly.
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Old 06-25-2012, 01:49 AM   #6
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A "screensaver" clock on the Kindle wouldn't work, because the screen never gets updated when the Kindle is asleep. It would simply show you the time that the Kindle went to sleep, which doesn't sound terribly useful to me .
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Old 06-25-2012, 05:15 AM   #7
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A "screensaver" clock on the Kindle wouldn't work, because the screen never gets updated when the Kindle is asleep. It would simply show you the time that the Kindle went to sleep, which doesn't sound terribly useful to me .
There is an kindle clock "screensaver" in the Dev Corner. The kindle periodically wakes up to update the clock image (not too often, to save battery). You can set it for 1 minute or 5 minute eink updates, I think...

P.S. It is usually not safe to say the something is impossible (or "wouldn't work"), because somebody will eventually (or already has) proven you wrong. It is much safer to say that you do not know how to do it. Speaking in "absolutes" is always risky. If you leave a sleeping 3G kindle sitting near amplified computer speakers, you may have noticed that it sometimes wakes up and "phones home", when you hear a burst of "cellphone noise" through the speakers, which proves that a kindle can be programmed to periodically wake up.

Last edited by geekmaster; 06-25-2012 at 05:24 AM.
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Old 06-25-2012, 01:48 PM   #8
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Originally Posted by Edward_R View Post
Here's a E-Paper watch that interacts with your android phone: http://www.kickstarter.com/projects/...droid?ref=live

More info here: http://getpebble.com/
There is a distinct difference between e-ink and e-paper. The Pebble watch is e-paper which is essentially a special type of backlit display that is viewable in direct sunlight. I'm looking foward to receiving mine in September.

Last edited by Skydog; 06-25-2012 at 01:51 PM.
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Old 06-25-2012, 03:42 PM   #9
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There is an kindle clock "screensaver" in the Dev Corner. The kindle periodically wakes up to update the clock image (not too often, to save battery). You can set it for 1 minute or 5 minute eink updates, I think...
You have to hack your Kindle to do this though, right?
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Old 06-25-2012, 06:05 PM   #10
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You have to hack your Kindle to do this though, right?
Native mode programs such as the clock do not need to hack very deeply into the kindle. Just a background task that updates the eink framebuffer at periodic intervals. It helps to know that background tasks can be scheduled to wake up periodically even when the kindle is "asleep". Because updating the eink display consumes a significant amount of battery energy, they should not do it too often.

Last edited by geekmaster; 06-28-2012 at 11:26 AM.
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Old 06-27-2012, 10:18 PM   #11
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I have a Motorola F3 eink phone. It is phone only, it can't do any fancy thing.
http://en.wikipedia.org/wiki/Motorola_FONE


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Old 06-27-2012, 11:30 PM   #12
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If color eink could ever get deep saturation, I would love an eink display for my Vespa GPS.
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Old 06-28-2012, 11:10 AM   #13
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The current color EINK technology is just the black and white eink we are familiar with, with a color filter overlay on the screen to tint the white particles under it. Because this blocks a significant amount of light (absorbed by the color filters), it will never have saturation anywhere near what you get from light-emitting displays (LCD, CRT, OLED, or plasma).

However, there are different eink-like passive color display technologies that may have better color saturation, but the ones so far available appear to have a very narrow viewing range that shows this color saturation (off axis viewing has very low saturation).

Technology has some catching up to do to bring us the eink color technology with the display quality we crave, but it WILL happen (right after we invest a significant amount in a lesser-quality passive-color device).
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Old 06-28-2012, 11:16 AM   #14
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Originally Posted by geekmaster View Post
The current color EINK technology is just the black and white eink we are familiar with, with a color filter overlay on the screen to tint the white particles under it. Because this blocks a significant amount of light (absorbed by the color filters), it will never have saturation anywhere near what you get from light-emitting displays (LCD, CRT, OLED, or plasma).
Its other major issue is that it halves the linear resolution of the display, because each colour "pixel" on the screen is actually a 2x2 block of four pixels on the actual device, so a screen with a "native" resolution of 200dpi becomes only 100dpi with the colour filter.
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Old 06-28-2012, 01:52 PM   #15
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All these e-ink watches seem like they're reinventing the wheel. A $10 Casio tells time perfectly, lasts 3-4 years on a single battery and is viewable day and night.

Last edited by terminalveracity; 06-28-2012 at 02:22 PM.
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