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Electronics => Electronics => Topic started by: mohit sharma on July 22, 2009, 07:32:43 AM

Title: colour detecting sensors
Post by: mohit sharma on July 22, 2009, 07:32:43 AM

Is there any kind of sensors which can be used for colour detection ? If there is so how they can be interfaced with microcontroller ?

Title: Re: colour detecting sensors
Post by: SmAsH on July 22, 2009, 07:57:36 AM

when i think of color sensors, two spring to mind.
1. cameras, these are generally more for advanced users http://www.societyofrobots.com/programming_computer_vision_tutorial.shtml
2. the simple photoresistor setup, this setup is easy as pie...
you simply turn one color led on, read photoresistor, turn it off and repeat with a different color led.
check out http://www.societyofrobots.com/sensors_color.shtml

Title: Re: colour detecting sensors
Post by: Soeren on July 26, 2009, 12:04:54 PM

Hi,

Quote from: mohit sharma on July 22, 2009, 07:32:43 AM

Is there any kind of sensors which can be used for colour detection ? If there is so how they can be interfaced with microcontroller ?

Yes, quite a few. Taos Inc makes some (http://www.taosinc.com/productfamily.aspx?sel=cs (http://www.taosinc.com/productfamily.aspx?sel=cs)) and you can build from the ground up with a RGB LED.

Title: Re: colour detecting sensors
Post by: Razor Concepts on July 26, 2009, 01:01:21 PM

http://www.sparkfun.com/commerce/product_info.php?products_id=8618

Title: Re: colour detecting sensors
Post by: MangoBot on July 26, 2009, 01:14:47 PM

did you read the tutorial on color sensing, it is exactly what smash said, and the admin i think has a code written for following a red shirt(read FAQ) this is the tutorial: http://www.societyofrobots.com/sensors_color.shtml

Title: Re: colour detecting sensors
Post by: mohit sharma on July 31, 2009, 12:46:35 AM

thanks to all for replies it helped a lot