Direction of travel

the most simple method to identificate direction is suspending a steel needle that magnetilized at end of thread, it can show your location direction.

if you want to build a electronic compass, you can use cheap HMR device

if you use led to indicate, you have to add a preamplifier to drive the led from uV to 0.8V

I am in Canada, the cost of a HMR device is typically $300. This is why I am looking for alternatives. What do you have that is cheaper?

It was 4 or 5 years ago. (time flies fast) I forget that exactly price. I remember it seems at least half cheaper than yours going price or only 1/3. if you are interesteed in I try to find their address and tell you.

use it you can easily make an electtronic compass.