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differences in the mega and the duelmilanova
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differences in the mega and the duelmilanova

by guinness on Tue Apr 27, 2010 1:49 pm

i'm attempting to implement a touch screen on a mega and here is the problem. i have it working over the serial port on a duemilnova but when i transfer the code to the mega it won't work. no response, When i hook up the duelminova I access com port 4 on my computer but with the mega comport changes to port five with no physical changes from me. The reason in need the mega is my glcd consumes to many pins to run the touch screen and some sensors on the duelmilanova.
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Re: differences in the mega and the duelmilanova

by adafruit_support_bill on Tue Apr 27, 2010 2:02 pm

The reason the com port changes is because the com port is in the Arduino, not your computer. If you plug in yet another Arduino, the USB bus will detect a new USB/serial device and allocate another virtual COM port for it. If you select port 5 in the IDE, you should be able to talk to your Mega.

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Please be positive and constructive with your questions and comments.