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Author Topic: arduino pro mini and openlog power help..  (Read 508 times)
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I have the openlog http://www.sparkfun.com/products/9530 connected to the arduino pro mini and it works perfectly when powered by the laptop through the FTDI basic. However, when I have them powered by 3.3V battery no data is logged in the openlog. Anyone know what the problem is?
« Last Edit: February 24, 2011, 04:45:00 pm by mayoman » Logged

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http://arduino.cc/en/Main/ArduinoBoardProMini
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Input Voltage   3.35 -12 V (3.3V model) or 5 - 12 V (5V model)
You didn't say which model you have, but a 3.3V battery does not seem to be enough when the minimum is 3,35V.
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Its the 3.3V model. If I was to use up to 12V would I need to use a voltage regulator? Would I risk burning out the components?
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You can supply up to 12 volts to the on-board voltage regulator. It will get warm at 12 volts. If you were to power the Arduino with 2 of your 3,3V batteries, that would be better.
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So if I was to supply up to 12V to the raw on the arduino would that work? would using a lithium battery supply more current?
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So if I was to supply up to 12V to the raw on the arduino would that work?
Yes.

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would using a lithium battery supply more current?
Than what? A potato?
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I have them powered by 3.3V battery

would a lithium battery supply more than a 3.3V battery?
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