Your reaction seems defensive, but I did not attack. From a "maker" point of view, I think that it is cool that you mapped the array of keys onto the screen. But it is not obvious what that buys you compared to a mini-trackball.

I only have space for one cursor controller in the sailplane, so I'd favor the one that works best. Bluetooth and batteries make installation easier, but I don't want a loose remote control floating around in negative-G. You could velcro your keyboard to your thigh.


On Friday, January 31, 2014 10:33:21 PM UTC-5, pcool wrote:
Why in your opinion televisions and remote appliances come with remote
controllers and not with a trackball?
Usability, they call it.

I agree that using a trackball takes a bit of practice, but it is very usable after you get used to it.

Apart from this, point me to a bluetooth HID trackball costing less than 10
dollars, with a LiPo battery, no wires please.
You can argue that your trackball is great. Nevertheless people with a
television at home do not use trackballs.
Watch the video and figure out yourself how many dozens time this keyboard
is, compared to the trackball.


"son_of_flubber" wrote in message

Why is this better than using a trackball?