Comments on: Digital clock building http://hackaday.com/2008/12/22/digital-clock-building/ Fresh hacks every day Wed, 25 Nov 2009 23:57:54 +0000 http://wordpress.com/ hourly 1 By: sonyawontrun http://hackaday.com/2008/12/22/digital-clock-building/comment-page-1/#comment-65337 sonyawontrun Thu, 05 Mar 2009 11:08:04 +0000 http://hackaday.com/?p=7139#comment-65337 yeah an alarm would be a good idea. http://digitalwallclock.biz yeah an alarm would be a good idea.

http://digitalwallclock.biz

]]> By: punkky http://hackaday.com/2008/12/22/digital-clock-building/comment-page-1/#comment-56544 punkky Thu, 25 Dec 2008 17:13:17 +0000 http://hackaday.com/?p=7139#comment-56544 Thank you for all comments. As I stated in my blog, I built this clock for learning Microcontroller. I'm not looking for an easy way to build a digital clock :) Alarm might be the next feature to be added. Thank you for all comments. As I stated in my blog, I built this clock for learning Microcontroller. I’m not looking for an easy way to build a digital clock :)
Alarm might be the next feature to be added.

]]> By: Wes http://hackaday.com/2008/12/22/digital-clock-building/comment-page-1/#comment-56466 Wes Wed, 24 Dec 2008 23:17:51 +0000 http://hackaday.com/?p=7139#comment-56466 If it doesnt need to be battery powered, you could step line voltage down to 5v, clean the wave up with a schmitt trigger, and set up a frequency divider to get a 1pps square wave. The 555 would be easier nvm XD If it doesnt need to be battery powered, you could step line voltage down to 5v, clean the wave up with a schmitt trigger, and set up a frequency divider to get a 1pps square wave. The 555 would be easier nvm XD

]]> By: mike http://hackaday.com/2008/12/22/digital-clock-building/comment-page-1/#comment-56375 mike Wed, 24 Dec 2008 01:56:52 +0000 http://hackaday.com/?p=7139#comment-56375 You could do the alarm with some 'ls85 comparators, a RS flop, and a 555 (or buzzer) for the sound. You could do the alarm with some ‘ls85 comparators, a RS flop, and a 555 (or buzzer) for the sound.

]]> By: bigdue http://hackaday.com/2008/12/22/digital-clock-building/comment-page-1/#comment-56244 bigdue Tue, 23 Dec 2008 10:51:56 +0000 http://hackaday.com/?p=7139#comment-56244 Not sure on the required gate count, but what about using a CPLD like in one of the previous entries here? khani3s, how do you plan to implement an alarm? Some type of FSM? Not sure on the required gate count, but what about using a CPLD like in one of the previous entries here?

khani3s, how do you plan to implement an alarm? Some type of FSM?

]]> By: ryan http://hackaday.com/2008/12/22/digital-clock-building/comment-page-1/#comment-56232 ryan Tue, 23 Dec 2008 07:19:47 +0000 http://hackaday.com/?p=7139#comment-56232 if he really wanted to be cool, he'd use nixie tubes. :P if he really wanted to be cool, he’d use nixie tubes. :P

]]> By: thethirdmoose http://hackaday.com/2008/12/22/digital-clock-building/comment-page-1/#comment-56216 thethirdmoose Tue, 23 Dec 2008 03:50:32 +0000 http://hackaday.com/?p=7139#comment-56216 Yea seriously... Why do you need a uC for this? Yea seriously… Why do you need a uC for this?

]]> By: khani3s http://hackaday.com/2008/12/22/digital-clock-building/comment-page-1/#comment-56214 khani3s Tue, 23 Dec 2008 03:30:45 +0000 http://hackaday.com/?p=7139#comment-56214 I am projecting a one with only 74xx logic, 555 and discrete components... With ALARM! I am projecting a one with only 74xx logic, 555 and discrete components… With ALARM!

]]> By: error404 http://hackaday.com/2008/12/22/digital-clock-building/comment-page-1/#comment-56213 error404 Tue, 23 Dec 2008 03:14:56 +0000 http://hackaday.com/?p=7139#comment-56213 Pfft :P The PIC is cheating! We had to do it with 74xx logic and a 12VAC transformer alone! Pfft :P The PIC is cheating! We had to do it with 74xx logic and a 12VAC transformer alone!

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