Hello, I'm new in this, I like to know how I keep the program in the arduino, because when I Upload the scketch to the arduino (arduino mega or uno) it works good! but then I unplug the arduino and plug it again and the program is gone! I need to upload the scketch again!! =S so, I need always a com…

How do I keep arduino working after unplug

cmiyc May 22, 2012, 2:20am 4

Where did you buy your Arduino from? Sounds like it has an old bootloader.

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