Hacked Gadgets Forum

July 26, 2010

RGB LED VU Meter using TLC5940 LED Driver Chips

at 6:10 pm. Filed under Complex Hacks, Computer Hacks, DIY Hacks, Electronic Hacks

diy_rgb_led-vu_meter_board


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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5 Responses to “RGB LED VU Meter using TLC5940 LED Driver Chips”

  1. Jonathan Says:

    Nice project, but.. why go from blue to red? Usually you would go from green to red.

  2. Simon Says:

    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.

  3. Adam Says:

    Can somebody post a list of parts to order from digikey?

  4. Francois Says:

    Is it possible if you could make me one of these VU meters and ship it to me. But without the RGB LEDS soldered to it but lose?
    I will buy the VU meter from you. As it is so difficult to get the parts here in South Africa.

  5. jan Says:

    Is it possible if you could make me one of these VU meters and ship it to me. But without the RGB LEDS soldered to it but lose?
    I will buy the VU meter from you.

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