I've been experimenting with the TAOS TLS2561 recently (i2c light sensor with infrared corrected readings), but I find the integration time for 'reasonable' readings too slow.. (402ms). The 101ms setting is better, but adds some jitter into the readings, and the 13ms one is next to unusable.. To test the jitter/noise I have 3 of the sensors soldered close together.
Does anyone had a way to measure ambiant (visible) light with reasonable precision in a reasonably fast time ? I'm looking for <10ms, possibly <5ms... Oh I also needs it to be calibrated somehow so I can derivate Lux...
I'm also looking for a photodiode (?) that has a quite fast reaction time (<=1ms) for dark/bright transition detection... Any suggestion ?
Oh yeah, it also has to be solderable and cheap-ish :D :D