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Unread 29-01-2012, 01:15
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Re: Speed PID Function

Quote:
Originally Posted by John_1102 View Post
Yeah I'm going to be using the RAW from now on as well.
I forget...is there is a way of subtracting consecutive samples and dividing them by 2 to find the rate.
Why would you divide by 2?

If your cycle time is 20 milliseconds (TeleOp) and you have 1440 pulses/rev, then to get RPM you would take the difference in pulses and divide by 24*0.02 = 0.48