- on Hobby & Modelling
- Published in issue 7/2007 on page 0
Low2 Cost USB Demo Board
Slick graphics, reading analogue values and making them appear in graphs, cockpit-style meters and dials, all on USB… How do they do it?
Like this: a single board connected up to the PC via a USB link and sporting an advanced PIC microcontroller. Add some software and there’s your USB demo board doubling as a development system to help you discover how USB is implemented on a microcontroller programmed to handle analogue and digital I/O for real world applications.
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Capacitor C6 should be connected to the VUSB terminal of the PIC18F4550 (pin 18), not to RC7/Rx (pin 26) as shown in the circuit diagram.