300 infrared sensors

dlloyd:

What are your feelings on this solution with the new sensors?

Too slow. Check pg4 (trepeat = 500 ms).
So pulseIn() would need 1/2 sec to take a measurement for each sensor (x 288).

If that were true then it would certainly be far too slow, however, I took 500 ms to be an example value for an input signal to the sensor. I thought it's PWM output would be much faster. I might well be wrong, it's not clear to me. It does say under applications (pg. 1) "Sensor for large format touch panels" - that's what I'm doing, right? Why would they design it to be so slow?