Comments on: 3-digit frequency meter

By: miked

miked — Fri, 20 Jun 2008 19:06:21 +0000

i approve of this post

By: J. Peterson

J. Peterson — Fri, 20 Jun 2008 03:55:33 +0000

I wonder why it did it with old-school logic…this would be trivial to implement with a single PIC/AVR.

By: Eizu

Eizu — Fri, 20 Jun 2008 03:55:28 +0000

I’m surprised you didn’t mention the utility this could have if converted to work in an automobile dashboard. It would enable all those “hyper-miling” idiots to stare at their dashboard and watch the precise volume of dinosaur sauce going into their engine.

By: ...

... — Fri, 20 Jun 2008 03:51:38 +0000

If you want to make one tht doesn't use such hard to find chips I found a few designs that only use basic logic chips
http://4hv.org/e107_plugins/forum/forum_viewtopic.php?24079 and a more complicated but more stable (not that it matters if you are building a 3 digit counter)
http://4hv.org/e107_plugins/forum/forum_viewtopic.php?18304

By: dane

dane — Fri, 20 Jun 2008 02:48:38 +0000

end of paragraph 1: Fan RPM is.....

otherwise, good to see some pure logic hackery