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Author Topic: Voltmeter for up to 9V  (Read 500 times)
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Adelaide, Australia
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Hi All,

I've tried searching but can't find anything.  I can use my Arduino to act as a voltmeter for up to 5V - but I need to measure up to 9V batteries.  I obviously can't plug 9V directly to the analogue input pins.

Can anyone point me in the right direction to measuring up to 9V?

Thanks,
Ross.
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SE USA
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http://www.raltron.com/cust/tools/voltage_divider.asp
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Perfect.  Thank you.
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