This repository contains the code for the compass project built at the 2016 Cederberg Adventure.
The operation of the compass is as follows.
- Pressing any button will wake the device for 30s/keep it alive for 30s more
- The left most button toggles between the major modes: compass, spirit level and off
- The second from left button toggles between compass vertical and horizontal modes
- The second from right button toggles between (0,360) and (-180,180) degrees mode
- The rightmost button calibrates the compass
The compass must be calibrated before use. To calibrate, press the calibrate
button. The text CALb will show, followed by HZtL. As the countdown counts
from 8 to 1, turn a full circle (ie 45 degrees per second), holding the compass
horizontal. The word VErt will then show. Turn a full circle as before,
now holding the compass out at arm's length, display facing you.
The project's brain is an Atmel ATMEGA88PA microchip. The codebase is in C and compiled with the Makefile included
in src/Compass. Installation is performed with a JTAGII.