Author Topic: is there a sensor that can detect white or black (Read 1008 times)

markieTIGERS · « **on:** September 17, 2009, 11:08:48 PM »

Hellow po sa inyo lht! first tym to post here... hope you guys can help me..

meron po ba kau alam n sensor (not vision) na kayang idetect kung either black or white ang isang object?

kung meron po san po kaya nakkabili nun...

hope you can help me guys. salamat !! ^_~

Philippine Electronics Forum · « **on:** September 17, 2009, 11:08:48 PM »

rdpzycho · « **Reply #1 on:** September 17, 2009, 11:11:59 PM »

light sensor and a light source, white surfaces tend to reflect light while black surfaces tend to absorb light.

Philippine Electronics Forum · « **Reply #1 on:** September 17, 2009, 11:11:59 PM »

markieTIGERS · « **Reply #2 on:** September 18, 2009, 12:04:12 AM »

Quote from: rdpzycho on September 17, 2009, 11:11:59 PM

light sensor and a light source, white surfaces tend to reflect light while black surfaces tend to absorb light.

ah thanks!

Philippine Electronics Forum · « **Reply #2 on:** September 18, 2009, 12:04:12 AM »

rdpzycho · « **Reply #3 on:** September 18, 2009, 12:23:09 AM »

minsan mas maganda kung IR 'yung light source at sensor dahil kung walang filter sa kulay, 'yung ambient pwedeng makita ng sensor.

Philippine Electronics Forum · « **Reply #3 on:** September 18, 2009, 12:23:09 AM »

markieTIGERS · « **Reply #4 on:** September 18, 2009, 01:06:33 AM »

Quote from: rdpzycho on September 18, 2009, 12:23:09 AM

minsan mas maganda kung IR 'yung light source at sensor dahil kung walang filter sa kulay, 'yung ambient pwedeng makita ng sensor.

meron po b kau alam na sensor module na nabibili with this kind of characteristic

Philippine Electronics Forum · « **Reply #4 on:** September 18, 2009, 01:06:33 AM »

carlsfootprints · « **Reply #5 on:** September 18, 2009, 01:48:31 AM »

pwede na siguro ung line sensor ng egizmo kung gusto nyo talaga na bumili ng kit na..

www.e-gizmo.com

markieTIGERS · « **Reply #6 on:** September 18, 2009, 02:33:07 AM »

Quote from: carlsfootprints on September 18, 2009, 01:48:31 AM

pwede na siguro ung line sensor ng egizmo kung gusto nyo talaga na bumili ng kit na..

www.e-gizmo.com

uhmm... need k po kc ung may range between atleast 10-80cm.. sori kung ngaun k lng namention

*tanong k lng po kung ung sharp IR range finder eh pde gamitin... ano po ba ung response ng sharp IR range finder when it comes to black and white..

thanks.

kraze · « **Reply #7 on:** September 18, 2009, 04:32:16 AM »

Quote

uhmm... need k po kc ung may range between atleast 10-80cm.. sori kung ngaun k lng namention

amplified mo using opamp like LM324

Philippine Electronics Forum · « **Reply #7 on:** September 18, 2009, 04:32:16 AM »

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