Society of Robots - Robot Forum

Electronics => Electronics => Topic started by: wjweijo on May 23, 2008, 10:42:27 PM

Title: Color sensor
Post by: wjweijo on May 23, 2008, 10:42:27 PM

Can anyone have the circuit diagram for color sensor using LDR??? i'm using color sensor to sense the color available at the station....

Title: Re: Color sensor
Post by: Admin on May 25, 2008, 03:16:34 PM

 ;D

http://www.societyofrobots.com/sensors_color.shtml
http://www.societyofrobots.com/schematics_photoresistor.shtml

Title: Re: Color sensor
Post by: Nyx on May 25, 2008, 03:29:53 PM

What about just putting red/green/blue colored filters in front of photoresistors?

Title: Re: Color sensor
Post by: wjweijo on May 25, 2008, 07:49:46 PM

thanks for the info....so the components needed just the LDR, red LED, blue LED, green LED and a filter?? just like that, rite?

Title: Re: Color sensor
Post by: Admin on May 30, 2008, 08:31:58 PM

Quote

What about just putting red/green/blue colored filters in front of photoresistors?

Filters? Are you sure you aren't thinking of tinted lenses? (entirely different!)

Quote

so the components needed just the LDR, red LED, blue LED, green LED

Well, the LED's must have resistors placed in serial, but yea thats all you need.

Title: Re: Color sensor
Post by: Nyx on May 30, 2008, 09:26:01 PM

Quote from: Admin on May 30, 2008, 08:31:58 PM

Quote

What about just putting red/green/blue colored filters in front of photoresistors?

Filters? Are you sure you aren't thinking of tinted lenses? (entirely different!)

Tinted lenses, AKA color filters.