The cart has a PNI V2XE compass module http://www.pnicorp.com/products/all/v2xe with a comm board to manage serial communication. The compass is mounted on the underside of the roof of the cart.
Device:
| /dev/compass | 9600 8N1 |
Inputs:
| none | none |
Outputs:
| heading | decimal degrees (0-360) corrected for declination, increasing positive values indicate clockwise rotation. 0 degrees is north |
Source:
source:embedded_systems/sensor/compass/trunk/compass.py
Reference:
source:embedded_systems/sensor/compass/trunk/doc/commboard.pdf
