Found a great article that describes how to make a LED voltmeter using a chip designed specifically for that, the LM3914.
http://www.evconvert.com/article/led-bargraph-battery-monitor
LED Voltmeter
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This page contains a single entry by Karen Nakamura published on January 14, 2010 3:18 PM.
EV Warrior Drive Roller was the previous entry in this blog.
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