these 3 things are exactly what i want to understand. this is what im
having problems with to visualise and that is why i thought of turning
to code directly.

________________________________________
From: piclist-bounces@mit.edu [piclist-bounces@mit.edu] On Behalf Of
Jinx [joecolquitt@clear.net.nz]
Sent: Saturday, January 17, 2009 11:30 PM
To: Microcontroller discussion list - Public.
Subject: Re: [PIC]counting rpm with a 16F84A

Do you understand how to make a timer interrupt ? For example, can
you accurately time 1 second ?

Do you understand how to capture input pulses ?

Finally, do you understand how to relate time elapsed to input count to
get the rpm answer you want ?

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