Subject:
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Re: light sensor problem?
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Newsgroups:
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lugnet.robotics.rcx.legos
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Date:
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Mon, 24 Jul 2000 15:42:06 GMT
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Viewed:
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1601 times
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> To achive scaling of light sensor reading from 0..100 the following
> theoretical formula should be used:
>
> light = 146 - scaled / 7,
>
> where scaled is the reading of AD_X >> 6.
>
> I found this at http://www.plazaearth.com/usr/gasperi/lego.htm, this
> page contains a lot of electrical background.
That's good.
Now I wonder about some other questions:
- Will it get the same value as the original firmware?
- Will be influenced by offset (eg. from battery voltage)?
In other words, do you think that the settle time is enough? I've tested some
different values for the delay, and small changes in reading occours.
Now going to the other discussion about implementation of ADC reading routine.
Bye,
Paolo.
---
Murphy's Third Law: In any field of scientific endeavor, anything that can go
wrong will go wrong.
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Message is in Reply To:
 | | Re: light sensor problem?
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| (...) To achive scaling of light sensor reading from 0..100 the following theoretical formula should be used: light = 146 - scaled / 7, where scaled is the reading of AD_X >> 6. I found this at (URL) this page contains a lot of electrical (...) (24 years ago, 24-Jul-00, to lugnet.robotics.rcx.legos)
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