3 ms·
Probably a ball with a fine black and white grid pattern and a fast imaging sensor could be used to achieve this. So long as it's sending updates at around 100h
by easygenes 5y ago
Probably a ball with a fine black and white grid pattern and a fast imaging sensor could be used to achieve this. So long as it's sending updates at around 100hz, should be pretty performant.
Edit: Could also probably be something that's alternating bright and dark in IR so the ball doesn't look weird.
- unnouinceput 5y agoIR and UV, much easier to decode as they are at opposite spectrum of visible light.
- henriks 5y agoThe one I have from Logitech uses an optical sensor for the movement itself. Gunk still builds up in the small balls that ensure the trackball itself rolls smoothly, so those have to be cleaned regularly anyway.
- easygenes 5y agoYeah, OP author mentioned magnetic suspension of the ball so I was kind of assuming that. A challenge with the magnetic suspension would be the "floaty" nature of it. You would have to filter out the noise of the ball itself getting moved around a bit as you rotate it.