Hi, I'm using an Duemilanove to power some sensors and a 16 x 2 LCD, but the LCD screen is using to much power and I want to power it with a 9 volt battery. I have been using the 5 volts from the Arduino. What is the best way to externally (not from the Arduino) power a HD44780 16x2 LCD without fr…

Externally Power an LCD

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