trackiing head movement

sierrabob

I'm trying to figure out a way to track head movement(pan) useing an HM55B compass module. I have a basic 2 and it reads the degrees fine. I plan to go out to a servo motor. The problem I'm haveing is·trying to figure a way to keep track of my current head position and then move the correct amount to the new head position. The real problem is when I move past the the 360 degree position from a lessor degree ( say 4 degrees ) to a larger ( say 354 degrees ) or vice versa.
Anyone have any Ideas?

Robofreak

Well, how does your compass tell your BS2 where North is? Does it tell you in degrees from 0 to 360? If so, you could use a program similar to this:

Post Edited (Robofreak) : 11/3/2007 2:33:50 PM GMT

slashsplat

Check out the Penguin Sticky
http://forums.parallax.com/showthread.php?p=675357

humanoido has written a BUNCH of compass programs based on the Penguin (bit faster chip than a BS2, but same language.)

▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔
slashsplat
/* Ira Chandler */
BotConnect.com

Robofreak

Okay, cool. So, are you going to use some of his examples to learn how do program your robot to do what you want it to do?