Comments on: DIY Frequency meter

By: sal

sal — Wed, 01 Aug 2007 00:45:19 +0000

Home-made 5hz to 500Khz Frequency-Meter? That 500,000hz someone needs check their typo. Because that is way out of the audible range of 20hz-20Khz

By: devils advocate

devils advocate — Tue, 31 Jul 2007 02:02:00 +0000

just search google for AVR “frequency counter” and you will find tons of better designed circuits that operate up to several hundert MHZ

By: strider_mt2k

strider_mt2k — Mon, 30 Jul 2007 21:34:57 +0000

It’s a cool project, it just needs to have that cosmoline wiped off of it.

By: upriverpaddler

upriverpaddler — Mon, 30 Jul 2007 20:00:34 +0000

Measuring RPM’s of rotating equipment would be a perfect use for this.

By: pokey

pokey — Mon, 30 Jul 2007 17:11:37 +0000

I don’t like to dump on anyone’s personal projects. IMO these are the kinds of projects that you learn from. However, I’d recommend that anyone who would consider building one to act as a lab counter might be better off visiting a swap meet or a tech company garage sale. Besides, a cheap used analog O-scope is pretty handy for checking frequency.

By: devils advocate

devils advocate — Mon, 30 Jul 2007 15:53:25 +0000

It is pretty ugly. And the range is strange: who needs a 500 kHz Frequency Counter? All the commercial ones reach the Gigahertz range. Which sources was this designed for? 33 khz clock crystals? Everything else than a simple waveform requires another solution anyway…

By: AustinMiniMan

AustinMiniMan — Mon, 30 Jul 2007 13:43:20 +0000

Yeah, she’s taken on one too many gamma rays.

By: maros

maros — Mon, 30 Jul 2007 11:29:38 +0000

This case looks like it was taken out from fire :D