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Author Topic: photoresistor tutorial update  (Read 3459 times)

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Offline AdminTopic starter

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photoresistor tutorial update
« on: June 27, 2007, 06:52:04 PM »
Thanks to the SoR member 'ribs', we got a nice welcome upgrade to the photoresistor tutorial.

Remember how we had to use the excel sheet with a graph to find the resistor to give the optimal voltage output?

Well ribs did some crazy calculus and derived an equation that gives the answer right away . . .

resistor = sqrt(R_dark*R_bright)

If you want to see the crazy math, I posted it on the tutorial:
http://www.societyofrobots.com/schematics_photoresistor.shtml

Thanks ribs!!!!!!!!!!

old school:

Offline sdk32285

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Re: photoresistor tutorial update
« Reply #1 on: June 27, 2007, 07:01:58 PM »
Interesting..
Robots for Roboticists Blog - http://robotsforroboticists.com/

 


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