How to use a 3 pin photodiode

Hi,

I am new to electrical engineering and I have just bought an Arduino to build a prototype for an artificial intelligence project that I am building. I need to attach about 10, 3 pin photodiodes to an Arduino. I am just confused on how to do this with the 3 pins and the wires. Does anyone know of any good tutorials or can explain to me how to do it. I have seen a few diagrams but just need to understand physically how to do it.

I have attached an image of what the photodiode looks like. Any help is greatly appreciated.

All the best,

James

1328482615781.jpg

A data sheet for the part will be much more useful than a photo. Or, at least tell us the part number so that we can find a data sheet, if we are so inclined.

I have seen a few diagrams but just need to understand physically how to do it.

When you mention something that you found on the net, why not link to it so that we know what you know.

That part may be a phototransistor, not photodiode.

Looks very much like a transistor to me, rather than a diode (based on the housing and the three pins). But without data sheet or part number that's about all that can be said about it.

Hi,

Here are a few links:

(2-7 bookmark on the first link)

http://www.hamamatsu.com/resources/pdf/ssd/e02_handbook_si_photodiode.pdf

Just wondering if there are any good tutorials or YouTube videos on how to connect these photodiodes to a circuit with the 3 pins.

Thanks,

James

This seems to be a normal 2-pin photo diode.
The third pin is connected to the metal can, for shielding.

What exactly are you trying to do.
Leo..

Hi Leo,

I am trying to connect 10 infrared photodiodes to my Arduino. And so one of the pins is not used?

thanks,

James

The Arduino has fewer than 10 analog inputs.

Overview on photodiode circuit design. Hint: get one photodiode to work perfectly, before you try to add more.

jamesdacombe:
I am trying to connect 10 infrared photodiodes to my Arduino.

And so one of the pins is not used?

But what are you trying to do with those 10 photo diodes.

The two last images on page4 show pin2 connected to the case.
Leo..