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If you like to listen to music here is a way to jazz up the experience. We have all seen the boring analog VU meters on either old or high end audio equipment. Simon Inns from Waiting of Friday has rigged up a cool RGB LED VU Meter circuit that uses 3 TLC5940 LED driver chips that are bring controlled by a PIC18F2550 microcontroller. “This project creates a RGB LED VU Meter which is controlled via USB by a Windows 7 or Vista host machine. The demonstration board consists of a 5V regulator (switching), a PIC18F2550 with the required USB components, 3xTLC5940 16 channel serial LED drivers with PWM and 16 high intensity RGB LEDs.”
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July 29th, 2010
Nice project, but.. why go from blue to red? Usually you would go from green to red.
July 29th, 2010
You can choose the colours you prefer from the windows application and change them as often as you like. The display firmware doesn’t implement the VU meter, it simply lights the LEDs at the brightness and colour requested by the windows application. It’s the application which controls the style, colour and function of the display.
February 12th, 2011
Can somebody post a list of parts to order from digikey?