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interfacing light sensor with analog output with PSoC3 | Cypress Semiconductor

interfacing light sensor with analog output with PSoC3

Summary: 5 Replies, Latest post by Ishu on 19 Mar 2013 08:39 AM PDT
Verified Answers: 0
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user_231902963's picture
User
72 posts

 can u plz suggest me how can i measure light intensity in terms of voltage using PSoC in PSoC creator.

help me out with sample code and design.

hli
user_78878863's picture
User
2759 posts

There are many methods. You can use a photo transistor, diode or resistor together with an ADC. You can use a digital light sensor, which then gets connected via I2C or SPI to the PSoC.

What sensor are we talking about?

user_231902963's picture
User
72 posts

 i m planning to make use of light to frequency converter TSL235. help me out with this one also...and also help me if i'll go with photodiode.

user_1377889's picture
User
10803 posts

First, before you start any experiences, you ought to give some thougts into

Range of measurements

Accuracy

Noise filtering (Flourescent lamps)

Handling (Buttobs, switches, range select)

Display (reding in the dark??? Freeze button)

As a hint: These are the specs of your meter, write them down, will help you to keep track

 

Bob

hli
user_78878863's picture
User
2759 posts

You already asked these question in another thread (http://www.cypress.com/?app=forum&id=1573&rID=55337 ) and got some answers. You need to do frequency measurement, as already explained there. Do you have any additional questions? If so, please ask them so we can answer them. Or do you expect the guys here to come up with you ready-made solution?

user_231902963's picture
User
72 posts

Bob Marlowe: my factor for designing this depends on accuracy and visible spectrum range of frequency.

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