0 Blimpduino unused pins question Posted by IKE on March 17, 2010 at 12:05pm I have a small and possibly stupid question. What are the unused pins (marked SPI) for?I made an image, they are highlighted in green: You need to be a member of diydrones to add comments! Join diydrones Email me when people reply – Follow
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that's the ICSP port. It's the way we load the bootloader on the Atmega so you can use the FTDI port for programming,