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Arduino Forum TSL235R Light to Frequency Converter
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TSL235R Light to Frequency Converter

aureta
aureta over 10 years ago

Hi, I am a newcomer in the arduino field. I am interested in having a light sensor for the detection of light, particularly the detection of rapidly changing low light levels. In this respect, the TSL235R LtoFC seems to be  a very good option for a sensor. Although it is possible to find many codes for doing light level measurements using TSL 235R, it is evident that the proper coding implies a deep understanding of the  inner working of the arduino system (i.e. timers) and arduino syntax. I want and need to implement a system for light sensing using the TSL235R LtoFC for what I would appreciate if someone can explain in a general way (or indicate were to find such an explanation) the communication between the TSL235R sensor, signals and the arduino hardware and syntax. Best,

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  • billpenner
    billpenner over 10 years ago

    The data sheets seem to be very helpful. I have not done definitive measurements so cannot help much. You  might also consider the light to voltage sensor form the same company (Taos) It might be easier to interface with the Arduino using the A to D convertor.  The range to be measured could be enhanced by using a OP-Amp before the A/D convertor in the Arduino. You mention fast changing light levels. What kind of speed do you require. Please let us know how you get on with the project.

    Bill

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