Some question about the project “bidirectional visitor counter using IR sensor”

[Leung]

I have some question about the project “bidirectional visitor counter using IR sensor” which are found in the following link:

http://www.engineersgarage.com/microcontroller/8051projects/Bidirectional-visitor-counter-AT89C51-circuit?destination=node%2F267

 

1. I would like to know what is the part number of the IR transmitter (LED) and the IR receiver?

2. In the video I found the IR transimtter and the IR receive placed together, are there using a mirror for the reflection? And how long of the effective distance?

 

Thanks

pwleung

[dagakshay]

hello leung,

it says the page not found, can past the (proper) link again

[Author]

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