Subject:
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Re: LEGO light sensor schematic
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Newsgroups:
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lugnet.robotics
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Date:
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Tue, 4 May 1999 00:31:02 GMT
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Viewed:
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941 times
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Dennis Clark wrote in message ...
> Are we sure that the photodiode is located in the schematic correctly?
Your right. It just can't be the way it is drawn. I think it must be a
photo transistor. Usually photo diodes are not as sensitive as photo
transistors either. I'll touch up the circuit and see if it looks right.
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Message has 1 Reply:
 | | Re: LEGO light sensor schematic
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| Well if anybody still cares, I think the LEGO light sensor circuit is 100% correct now. The sensor is a phototransistor. Looking at the circuit implies a interesting side effect. If you shine a very bright light (ie laser pointer) into the (...) (25 years ago, 4-May-99, to lugnet.robotics)
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Message is in Reply To:
| | Re: LEGO light sensor schematic
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| (...) [snip] I'm happy to see that some of my concerns have been born out with these changes, it looks more like a happy little circuit now. (...) Are we sure that the photodiode is located in the schematic correctly? It doesn't look like its biased (...) (25 years ago, 3-May-99, to lugnet.robotics)
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