Subject:
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monitor and control external voltage
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Newsgroups:
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lugnet.robotics.rcx
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Date:
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Fri, 11 Oct 2002 19:42:52 GMT
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Viewed:
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2700 times
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Could you build a voltage controlled switch out of the RCX? Do this:
Monitor a voltage, when the monitored voltage does something, switch a motor
output.
1) What would you have to do to monitor a voltage (safely)? Connect an
input sensor to your source with a resistor in series. What size resistor?
2) How do you safely electronically switch the external circuit? A motor
output plus a mosfet? Motor output and some optically coupled device?
I would like to monitor the charging of a battery pack and stop the process
when the voltage declines.
If you have any resources for 1 and 2, please point me there.
Thanks,
Bill
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