Commenting code out seems to add “creep” or turning a couple of degrees after stopping at each Cardinal Point, while with code in “creep” is more occasional. So, leaving code in, is better.
Going to try to inscribe a square around the center point of Zumo using Mr. Compass. Think it will work? Maybe attach a pencil to Zumo.
Don
I’m not sure, but I’d love to hear how it goes if you try it.
- Ben
Hi
just to let you know my experience with this one. Downloaded and installed the sketch, the zumo span around twice, then went into a mad spin, non stop. I changed the sensitivity from 13 to 25 and it now works perfectly. (no buzzer mind you, but thats not a prob, it works with the buzzer lib so I’m not worried, probably just the pin assignment) this is with an arduino UNO so that probably explains the buzzer.
Otherwise though, works 
changed to this
compass.setMagGain(compass.magGain_25);Thanks for letting us know how the code worked for you! I’m glad to hear all went well once you modified the sensitivity.
- Ben
be nice to see this one using the latest libraries 
perhaps with a little drive in between to proscribe a square
I agree; I’ll push to get something done, hopefully sooner rather than later.
- Ben