questions → any ideas for a door (open/close) counter?

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Any ideas for a door (open/close) counter?

Jul 8, 2012 9:16 PM

I have a project in which I need to count how many times a cabinet door is opened ... and while right now, my idea is a pedometer taped to the door (which will register a count when shaked), I'm hoping for something more mechanical in nature instead of electrical.

Any ideas of a mechanical counter that could be used instead for something like this?

narfcake narfcake

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Here are the 1st choices on Amazon, out of 1,249 hits on "mechanical counter".

http://www.amazon.com/Sportline-Walking-Advantage-Tally-Counter/dp/B000C3SBKG/ref=sr_1_1?ie=UTF8&qid=1341782747&sr=8-1&keywords=mechanical+counter

http://www.amazon.com/Maximum-counts-Economy-Counter-Revolution/dp/B002SPOGKA/ref=sr_1_2?ie=UTF8&qid=1341782747&sr=8-2&keywords=mechanical+counter

http://www.amazon.com/GOGO-5-Digit-Mechanical-Counter-Desktop/dp/B002836QQO/ref=sr_1_3?ie=UTF8&qid=1341782747&sr=8-3&keywords=mechanical+counter

The second one looks like it might adapt to your needs easily by attaching a stiff wire or rod from the door to the arm on the counter.

tbgolladay tbgolladay
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Let me Google that for you: https://www.google.com/search?source=ig&hl=en&rlz=&q=door+open+close+counter+&oq=door+open%2Fclose+&gs_l=igoogle.1.9.0i30l6j0i10i30j0i30l3.4563.9797.0.13681.16.15.0.1.1.0.104.1335.12j3.15.0...0.0...1ac.34EgZoCpu5o

bill7718 bill7718
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Your choice of counters should also hinge(pun intended) on whether the door is a flush mount or recessed mount.

jsimsace jsimsace
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from bill's link, here's an Instructable that looks cool: http://www.instructables.com/id/Versatile-and-Low-Cost-Digital-Counter

basically it says get a contact reed switch and track the counts of contacts

w00tgurl w00tgurl
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@tbgolladay: Brilliant! The tally counter looks to be perfect; door close, push the tab. Door open, pops back up for next time.

Thanks!

narfcake narfcake
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@w00tgurl: @narfcake had asked for mechanical options ...

psaux psaux
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@psaux: So my idea of taping a pencil and piece of paper to the cabinet is right out? :)

neuropsychosocial neuropsychosocial

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Jul 8, 2012 9:16 PM
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narfcake
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