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DIY Stompboxes => Building your own stompbox => Topic started by: ExpAnonColin on December 17, 2003, 11:06:57 PM

Title: Cheap, very low hz frequency counters?
Post by: ExpAnonColin on December 17, 2003, 11:06:57 PM
Just so I don't have to do the math so much... are they worth it, and does anyone know where I could get a 0hz-1mhz one, as opposed to 10hz-500mhz?

-Colin
Title: Cheap, very low hz frequency counters?
Post by: R.G. on December 18, 2003, 09:58:42 AM
There is a DIY project I've seen using one PIC and some seven segment displays to do a low frequency counter. I think the code is downloadable. Parts cost should be under $30
Title: Cheap, very low hz frequency counters?
Post by: ExpAnonColin on December 18, 2003, 06:02:22 PM
Quote from: R.G.There is a DIY project I've seen using one PIC and some seven segment displays to do a low frequency counter. I think the code is downloadable. Parts cost should be under $30

Any clues to where itis?

-Colin
Title: Cheap, very low hz frequency counters?
Post by: Paul Perry (Frostwave) on December 18, 2003, 09:28:25 PM
The key to a low frequency counter, is to use the signal you are examining, to turn on & off a counter that is counting a high freq oscillator.
Then you do some maths :)
That is why you don't see many very low freq counters (look for 'period' in the description if you wnat to find one)
Another bloody job for a PIC!
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