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Author Topic: Power Supply to the Arduino.  (Read 566 times)
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Hi, I've recently bought an Arduino Uno board.
I wonder if it'll work with a 12v DC supply?
Coz I'm working on a LCD Project which is a JHD162A. I've read that the backlight works fine with the USB power, but the blocks on the LCD require an external power supply...
Will it work with a 9v too?
Thanks! smiley
« Last Edit: December 31, 2010, 01:33:04 am by Divyanshu » Logged

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Yes, either 12vdc and 9vdc will work via the external power connector or hardwired to the Vin pin and ground pin. 9vdc would be better as there will be less heat dissapation for the on-board +5vdc voltage regulator to  have to deal with.

Lefty
« Last Edit: December 31, 2010, 03:09:28 am by retrolefty » Logged

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Ok thanks!
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