methods?

CodeGuru

I take Computer science in school and we work with Java.

Well what I am wondering about is can you make and recall back to methods?
Like you have a method to make a left turn, you know just so you don't have repetitive code.

Anyone know?

Jon Williams

Lookup GOSUB in the manual. PBASIC does not use local variables or pass parameters -- everything is global. If Java is your choice, we do have a controller called the Javelin that might just be what you're looking for.

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Jon Williams
Applications Engineer, Parallax

CodeGuru

Thanks a lot, I found it.

Now I ran into a new problem...
I made this code while also looking in the manual, and the code looks great.

"Left:
FOR counter = 0 TO 70
PULSOUT 12, 750 - counter
PULSOUT 13, 750 - counter
NEXT

FOR counter = 70 TO 0
PULSOUT 12, 750 - counter
PULSOUT 13, 750 - counter
NEXT
PAUSE 100
RETURN

Right:
FOR counter = 0 TO 70
PULSOUT 12, 750 + counter
PULSOUT 13, 750 + counter
NEXT

FOR counter = 70 TO 0
PULSOUT 12, 750 + counter
PULSOUT 13, 750 + counter
NEXT
PAUSE 100
RETURN

Forward:
FOR counter = 0 TO 100
PULSOUT 12, 750 - counter
PULSOUT 13, 750 + counter
NEXT

FOR counter = 1 TO 100
PULSOUT 12, 650
PULSOUT 13, 850
NEXT

FOR counter = 100 TO 0
PULSOUT 12, 750 - counter
PULSOUT 13, 750 + counter
NEXT
PAUSE 100
RETURN"

The Problem is that the left turn works fine; the servos turn and stop when told. But the forward and Right do a big jerk at the end (like they go in reverse for a split second)
I don’t know why this is happening, because the code for left and right are exactly the same besides a few "+"s and "-"s.

Any one else have this problem?

Bean

The servos need some time to "process" the movement.

You need to put "PAUSE 20" inside each of your FOR...NEXT loops.

Like this:
FOR counter = 0 TO 70
PULSOUT 12, 750 - counter
PULSOUT 13, 750 - counter
PAUSE 20
NEXT

Bean.

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