Comments on: Digital clock building http://hackaday.com/2008/12/22/digital-clock-building/ Fresh hacks every day Fri, 10 Feb 2012 14:02:57 +0000 hourly 1 http://wordpress.com/ By: Gene D. http://hackaday.com/2008/12/22/digital-clock-building/comment-page-1/#comment-113981 Wed, 30 Dec 2009 01:36:09 +0000 http://hackaday.com/?p=7139#comment-113981 We all have to begin somewhere. It is a good learning project. I have made a clock using 74′ series IC, programable counter, keyboard entry, latches for alarm and a comparitor circuit.
I have many PIC’s, basic stamps, Z80 and ….. But I still injoy the extream challange of designing a circuit without any programming…stuff.
Good job!!!

]]> By: sonyawontrun http://hackaday.com/2008/12/22/digital-clock-building/comment-page-1/#comment-65337 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

]]> By: punkky http://hackaday.com/2008/12/22/digital-clock-building/comment-page-1/#comment-56544 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.

]]> By: Wes http://hackaday.com/2008/12/22/digital-clock-building/comment-page-1/#comment-56466 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

]]> By: mike http://hackaday.com/2008/12/22/digital-clock-building/comment-page-1/#comment-56375 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.

]]> By: bigdue http://hackaday.com/2008/12/22/digital-clock-building/comment-page-1/#comment-56244 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?

]]> By: ryan http://hackaday.com/2008/12/22/digital-clock-building/comment-page-1/#comment-56232 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

]]> By: thethirdmoose http://hackaday.com/2008/12/22/digital-clock-building/comment-page-1/#comment-56216 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?

]]> By: khani3s http://hackaday.com/2008/12/22/digital-clock-building/comment-page-1/#comment-56214 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!

]]> By: error404 http://hackaday.com/2008/12/22/digital-clock-building/comment-page-1/#comment-56213 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!

]]>