3 ms·
Seems like a good use case for PID loops -- drive the pixel really hard for a brief moment to bring it to the target value faster than might otherwise be possib
by etaioinshrdlu 8y ago
Seems like a good use case for PID loops -- drive the pixel really hard for a brief moment to bring it to the target value faster than might otherwise be possible.
Seems limited only by the voltages that just end up frying parts.
- tlb 8y agoFor a PID loop, you'd need to be able to measure the position and velocity of the black dots. Velocity seems very hard. You could conceivably measure the position with a camera looking at the image, but will people want an ebook reader with a camera sticking out in front?
- etaioinshrdlu 8y agoGood point. Maybe not a PID loop at all, but rather an well tuned open-loop controller that compensates for the natural time response of the e-ink pixel.