USB RGB LED VU Meter

http://www.waitingforfriday.com/index.php/USB_RGB_LED_VU_Meter

This project creates a RGB LED VU Meter which is controlled via USB by a Windows 7 or Vista host machine. The project serves several purposes: Firstly, it demonstrates how to read audio information from the Windows machine and pass this over USB to the device (which is a question which popped up several times after my USB Performance Monitor project). Secondly, it implements an open source TLC5940 driver. Although a library has been available for the AVR microcontroller, I wasn't able to find an open source library for the PIC. Hopefully this demonstration will be useful to anyone wanting to control a large number of LEDs with PWM brightness control.

Originally published on YouTube: 2010-07-19