some question

[bemoracareful0725]

Hi,
I have some question about the receiver side .
You use the LED to receive.
Why do you use the photodetector or photodiode?

I am not good at English ,so please forgive my poor english.

[jpiat]

A led is used to minimize the cost and ensure selectivity to receive only
the emitter color (a blue LED will received only blue light).
I can also answer in French if needed.

2016-03-03 11:02 GMT+01:00 bemoracareful0725 notifications@github.com:

Hi,
I have some question about the receiver side .
You use the LED to receive.
Why do you use the photodetector or photodiode?

I am not good at English ,so please forgive my poor english.

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Reply to this email directly or view it on GitHub
#6.

[bemoracareful0725]

I see.
Thank a lot