RE: [oopic] Reed switch help

The resistor acts as a pull-low resistor. A 10K-ohm or a 4.7K-Ohm is good
enough.

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Ray Xu
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-----Original Message-----
From: oopic@yahoogroups.com [mailto:oopic@yahoogroups.com] On Behalf Of
oooopic
Sent: Monday, August 11, 2008 12:02 PM
To: oopic@yahoogroups.com
Subject: [oopic] Reed switch help

Hi,

i was thinking that i could build a speedometer
using the ospeedometer-object.
I have the reed-switch, but how big resistor should i use?
I found one 150 ohm and one 20 ohm, so is 170 ohm enough?
It should let trough 29 mah on 5 volts..

Thanks

[Non-text portions of this message have been removed]

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