To make sure that I am understanding this correctly, even though it uses USB to interface with the computer, a FTDI is still need in order to get the board and computer to talk? I currently only have the USB connected as I did not understand if I needed a FTDI component as well. Also, to use the 9-…

Just starting with Arduino/Lilypad USB

CrossRoads April 27, 2014, 5:46am 4

I think you'll find just 9 IO pins will be a limiting factor quite soon, especially with only I2C broken out - no SPI, no Serial.

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