Add USB To Your Electronics Projects! - The USB Protocol Explained

USB is both the simplest and most complex interface to use. It is simple to plug in and let the computer handle. It is complex to create and run a microcontroller with it.

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Schematic: https://sinelab.net/pdf/usb_test.pdf
Code: https://sinelab.net/code/usbify.zip
ASF-USB: https://asf.microchip.com/docs/latest...
LUFA: http://www.fourwalledcubicle.com/LUFA...
USB Datasheet: https://sinelab.net/pdf/usb-20-specif...
ATmega16u2 Datasheet: https://sinelab.net/pdf/ATmega16u2.pdf
Adapter: https://www.aliexpress.us/item/225183...
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