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optical sensor

 
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zelsenussi



Joined: 28 Jun 2008
Posts: 16
Post02 Jul 2008 22:06   optical sensor
i have infra red sensor how can i conect it to microcontroller for external interupt..
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rikie_rizza



Joined: 05 Aug 2006
Posts: 328
Helped: 20
Location: Bikini Bottom, between a rock and a pineapple
Post03 Jul 2008 3:39   optical sensor
You can use an analog comparator with logic output.
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TekUT



Joined: 17 Jun 2008
Posts: 291
Helped: 19
Post03 Jul 2008 11:20   Re: optical sensor
If you need to detect some object or movement you can refer to Honeywell devices, there are several model with transmitter and receiver built inside the same package.
Here you can find a example:

http://www.alliedelec.com/Images/Products/Datasheets/BM/HONEYWELL_OPTO_PRODUCTS/HONEYWELL-OPTO-PRODUCTS_ACTIVES-AND-PASSIVES_2760029.PDF

Using infrared instead visible have advantage about immunity of the receiver against visible ligth.

Cheers
Powermos
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kender



Joined: 19 Jun 2005
Posts: 934
Helped: 68
Location: Stanford, SF Bay Peninsula, California, Earth, Solar System, Milky Way
Post03 Jul 2008 18:56   Re: optical sensor
zelsenussi wrote:
i have infra red sensor how can i conect it to microcontroller for external interupt..

Post a model of the sensor or a link to its datasheet.
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