Toss out those FTDI cables and go USB-native with the ATmega32u4. After many months of back-orders, Adafruit finally received a shipment of these little guys and are excited to offer their breakout board. The little dev board keeps it simple, with just the bare essentials:
This breakout board is best for those who have familiarity with some microcontrollers and are comfortable with writing code in C. This board doesn't come with any 'learn to program' tutorials! If this is your first time with a microcontroller, they suggest going with an Arduino which is easier. Then when you want to upgrade, check this out.
Plug it in, connect a mini-B USB cable and you can start writing code immediately. With the built-in bootloader you don't even need an AVR programmer. Adafruit suggest checking out the LUFA library to get started with the USB core as nearly every kind of device has an example already.
For more information, including files, check out the product page including why you'd want to use a Teensy or this board.
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