Comments on: Controlling a clock with an Arduino http://www.cibomahto.com/2008/03/controlling-a-clock-with-an-arduino/ Making Hacking Programming Building Designing Dreaming Thu, 25 Feb 2010 08:30:14 -0500 http://wordpress.org/?v=2.9.1 hourly 1 By: Dave G http://www.cibomahto.com/2008/03/controlling-a-clock-with-an-arduino/comment-page-1/#comment-33354 Dave G Wed, 18 Nov 2009 16:01:21 +0000 http://www.cibomahto.com/?p=174#comment-33354 Hey this is what i have been looking for for a project im doing but im trying to use a pocket watch instead! Though im finding it really hard trying to find where i solder to! Any chance you give some pointers to a newbie who can do more software than hardware stuff :)? Dave Hey this is what i have been looking for for a project im doing but im trying to use a pocket watch instead! Though im finding it really hard trying to find where i solder to! Any chance you give some pointers to a newbie who can do more software than hardware stuff :) ?

Dave

]]> By: mahto http://www.cibomahto.com/2008/03/controlling-a-clock-with-an-arduino/comment-page-1/#comment-24708 mahto Tue, 16 Jun 2009 13:29:21 +0000 http://www.cibomahto.com/?p=174#comment-24708 Sweet! however, that doesn't sound like a 'cool' indicator at all :-D Sweet! however, that doesn’t sound like a ‘cool’ indicator at all :-D

]]> By: Peter Dekkers http://www.cibomahto.com/2008/03/controlling-a-clock-with-an-arduino/comment-page-1/#comment-24679 Peter Dekkers Tue, 16 Jun 2009 08:12:12 +0000 http://www.cibomahto.com/?p=174#comment-24679 Yay, works perfectly! I found that I had to up the delay in the doTick() function to suit my particular gear configuration, otherwise the clock would just jump erratically backwards and forwards. 16 milliseconds seems to be the sweet spot. Putting only a call to doTick() into the loop() function is fun, too. Makes the clock go quite fast. The second hand does about a revolution per second. And if you hold your finger in the way of the second hand, it makes the clock go backwards and forwards, changing direction each time it hits your finger. I'm thinking it could be a cool indicator. E.g. the warmer it gets, the faster the clock goes. Thanks again for the detailed write up :) Yay, works perfectly! I found that I had to up the delay in the doTick() function to suit my particular gear configuration, otherwise the clock would just jump erratically backwards and forwards. 16 milliseconds seems to be the sweet spot.

Putting only a call to doTick() into the loop() function is fun, too. Makes the clock go quite fast. The second hand does about a revolution per second. And if you hold your finger in the way of the second hand, it makes the clock go backwards and forwards, changing direction each time it hits your finger.

I’m thinking it could be a cool indicator. E.g. the warmer it gets, the faster the clock goes.

Thanks again for the detailed write up :)

]]> By: mahto http://www.cibomahto.com/2008/03/controlling-a-clock-with-an-arduino/comment-page-1/#comment-24630 mahto Mon, 15 Jun 2009 15:29:40 +0000 http://www.cibomahto.com/?p=174#comment-24630 Awesome! Be sure to post your results :-) Awesome! Be sure to post your results :-)

]]> By: Peter Dekkers http://www.cibomahto.com/2008/03/controlling-a-clock-with-an-arduino/comment-page-1/#comment-24609 Peter Dekkers Mon, 15 Jun 2009 05:27:25 +0000 http://www.cibomahto.com/?p=174#comment-24609 Bought a clock today, aiming to make the hands go nuts! Thanks for the inspiration and the electronic hobos. Bought a clock today, aiming to make the hands go nuts! Thanks for the inspiration and the electronic hobos.

]]> By: mahto http://www.cibomahto.com/2008/03/controlling-a-clock-with-an-arduino/comment-page-1/#comment-24248 mahto Wed, 10 Jun 2009 19:01:40 +0000 http://www.cibomahto.com/?p=174#comment-24248 Thanks everyone! @Tim: :-D @J: yeah, I actually wanted to use it at the office to slow down right before lunchtime. It could be a fun psychology experiment to play on test-takers as well :-). Thanks everyone!

@Tim: :-D

@J: yeah, I actually wanted to use it at the office to slow down right before lunchtime. It could be a fun psychology experiment to play on test-takers as well :-) .

]]> By: J http://www.cibomahto.com/2008/03/controlling-a-clock-with-an-arduino/comment-page-1/#comment-24247 J Wed, 10 Jun 2009 18:55:07 +0000 http://www.cibomahto.com/?p=174#comment-24247 Or you could have it up on the wall in a classroom and when you give a test slow it down so that time would seem to drag on to the test taker :) Or you could have it up on the wall in a classroom and when you give a test slow it down so that time would seem to drag on to the test taker :)

]]> By: Tim http://www.cibomahto.com/2008/03/controlling-a-clock-with-an-arduino/comment-page-1/#comment-23998 Tim Sat, 06 Jun 2009 10:06:47 +0000 http://www.cibomahto.com/?p=174#comment-23998 Lol, I love the electronic hobos! Someone use this to make a reggae clock! Lol, I love the electronic hobos! Someone use this to make a reggae clock!

]]> By: Tom Adams http://www.cibomahto.com/2008/03/controlling-a-clock-with-an-arduino/comment-page-1/#comment-23992 Tom Adams Sat, 06 Jun 2009 05:32:27 +0000 http://www.cibomahto.com/?p=174#comment-23992 One neat idea would be to make a clock that keeps Mars time, or one that keeps sidereal time. One neat idea would be to make a clock that keeps Mars time, or one that keeps sidereal time.

]]> By: Rob D http://www.cibomahto.com/2008/03/controlling-a-clock-with-an-arduino/comment-page-1/#comment-23975 Rob D Fri, 05 Jun 2009 23:10:06 +0000 http://www.cibomahto.com/?p=174#comment-23975 I built a touch-sensitive chess clock a while back, and was trying to work out a way to make it reset itself. This, in conjunction with a hall effect switch, would do it! NB - I wouldn't skip the diodes, even for a low-powered motor like this one. The voltage spikes will eventually damage the output pins. Fortunately, any diodes would work, as long as they weren't zeners :-) I'd look for fast-recovery diodes, to make sure they catch all of the spike. I built a touch-sensitive chess clock a while back, and was trying to work out a way to make it reset itself. This, in conjunction with a hall effect switch, would do it!

NB – I wouldn’t skip the diodes, even for a low-powered motor like this one. The voltage spikes will eventually damage the output pins. Fortunately, any diodes would work, as long as they weren’t zeners :-) I’d look for fast-recovery diodes, to make sure they catch all of the spike.

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