Author Topic: making photovore sensor question  (Read 1714 times)

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Offline cooldogTopic starter

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making photovore sensor question
« on: February 02, 2008, 09:06:36 PM »
what reistor is use to make the photocell sensor

http://www.societyofrobots.com/schematics_photoresistor.shtml
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Offline ed1380

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Re: making photovore sensor question
« Reply #1 on: February 02, 2008, 09:08:04 PM »
2 questions for you.

1- which resistors did admin order?
2- which one did he use for the led?
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Offline cooldogTopic starter

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Re: making photovore sensor question
« Reply #2 on: February 02, 2008, 09:12:14 PM »
340ohm
1.62K

don't know which one he used for the LED
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Offline garriwilson

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Re: making photovore sensor question
« Reply #3 on: February 02, 2008, 09:22:05 PM »
I think (70% sure) that I used the blue one. I can't check because it's covered in heatshrink. Wait for someone good to answer.

Offline airman00

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Re: making photovore sensor question
« Reply #4 on: February 02, 2008, 09:23:46 PM »
340 ohm for the led sounds right

i use a 10K ohm resistor on my photocells though
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Offline ed1380

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Re: making photovore sensor question
« Reply #5 on: February 02, 2008, 09:55:55 PM »
340ohm
1.62K

don't know which one he used for the LED
look at the picture, read teh tutorial. worst case senario use this to decode it http://www.dannyg.com/examples/res2/resistor.htm
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