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Author Topic: what resisotor?  (Read 410 times)

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Offline Mike11Topic starter

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what resisotor?
« on: June 23, 2011, 12:03:27 PM »
Hi,

does anyone know which resistor go with the photoresistors in the 50 buck project (340 ohm vs. 1.6 kohm)? I couldnt find anywhere Also, does it affect the robot in any way - I mean, can the software cope with both possibilities?

Thanks a lot
Mike

Offline Soeren

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Re: what resisotor?
« Reply #1 on: June 23, 2011, 12:35:17 PM »
Hi,

does anyone know which resistor go with the photoresistors in the 50 buck project (340 ohm vs. 1.6 kohm)? I couldnt find anywhere Also, does it affect the robot in any way - I mean, can the software cope with both possibilities?
The resistor will depend on the resistance of the LDR. Measure the LDR value at max. light and max. darkness it will see and use a resistor value that is at the percentile middle.
That way it will have the largest range possible (as long as the value isn't adjusted dynamically, which would be a project in it's own right).
Regards,
Søren

A rather fast and fairly heavy robot with quite large wheels needs what? A lot of power?
Please remember...
Engineering is based on numbers - not adjectives

 


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