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The sketch compiles but won't upload? Answered

After adding the neopixel library I can get the sketch to compile but it won't load to my arduino. I keep getting an error message like "can't open device.........dev/cu.usbmodemFD121

1 Replies

BrianL251 (author)2017-03-08

Never mind, I forgot I got a new computer and hadn't set up the com port yet.

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