Cheap pulse counter

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Post by Ivan on Sun Feb 16, 2020 1:32 am

Hi Harry,
this one is probably the same.

VBR from Ivan

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Post by Admin on Sun Feb 16, 2020 12:18 am

That is interesting.
I have bought a lot of stuff from AliExpress, but now Sweden have imposed a fine on all packages from China, in an effort to force people to buy local.

I shall google this product, perhaps I can find it on E-Bay, delivered from another country.

BR Harry

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Post by Ivan on Tue Nov 26, 2019 9:04 am

Hi all,
I found a small pulse counter here There are the similar ones from more sellers, but this seems to be the cheapest (cca 0,5 EUR incl. postage to Czechia when ordered 5 pcs). I expect the buttons can be extended with wires and driven by an external contact, transistor or optocoupler. I have not tested the maximum frequency yet.
The counter can be used e.g. to count turns on a winding machine or passes through a door. With a prescaler and gating circuitry it might make a small frequency counter or receiver dial.

VBR from Ivan OK1SIP

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