|
Re: GearTooth Sensor Destroying Hopes of Autonomous~!!!!!!
I tried counting teeth (well sort of... I was using an optical sensor to count the number of revs of a shaft collar). I found the best way is to hook up the output of the sensor to an interrupt pin. That way when the sensor trips you increment your count (or decrement, depending on which way the motor was going last, use a tracking variable).
It's quite a bit more accurate than counting in the main loop as the IRQ time on those PICs is in the microseconds.
And, it's largely free.
__________________
"Put your hand on a hot stove for a minute, and it seems like an hour.
Sit with a pretty girl for an hour,
and it seems like a minute. THAT'S relativity." -Einstein
----
First Resume: (If I can remember)
2001 NJ Regional
2001 Championship
2002 NYC Regional
2003 OH Regional
2003 Championship
2004 OH Regional
2005 Finger Lakes Regional
2006 Finger Lakes Regional (yes!)
|
Okay, Okay, I officially apologize to the the entire country of Canada - Joe Johnson [more] 
22-02-2006, 10:59
Threaded Mode