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Rapid response light sensors for use with an Arduino


GeoffC

I am trying to build a laser harp MIDI controller using an Arduino, small laser modules and photodetectors. I have constructed one using CDs photoresistors but the response to the interruption of the light beam is too slow to allow fast tunes to be played. I am trying to identify a suitable sensor (probably a photodiode or phototransistor) which would be suitable for direct connection to the inputs of the Arduino, would react quickly to the interruption of the light beam and would be reasonably affordable. Can anyone recommend anything suitable from the rs-online catalogue?

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