rtbcoop

Instead of using a hollow shaft motor, why not mount the knob to two captured bearings and then drive the knob with gears instead of directly off the motor. Think...

I am sure there are others that are better suited to solve the electrical issue, but I can definitely solve the mechanical issue. Instead of using a hollow shaft motor,...

> I would wonder about the sensory feel of the drive gears. If the ratios were too high, it might be hard or strange to drive them by turning (vs...

This is what I had in mind. In the real design, I would mount the gears to the bottom of the knob; this design was just for a visual. ![Knob...

It would also be great if it could provide alerts at specified altitudes instead of just continuously reading off the altitude.