Difference between revisions of "Walcott Visualization"
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==Hardware== | ==Hardware== | ||
| + | The visualization uses a PIC to decode a 4E Network packet containing six 0-255 values. The packet should look something like: | ||
| + | <pre> | ||
| + | \ | ||
| + | H | ||
| + | v | ||
| + | (ignored) | ||
| + | (ignored) | ||
| + | (channel 1) | ||
| + | (channel 2) | ||
| + | (channel 3) | ||
| + | (channel 4) | ||
| + | (channel 5) | ||
| + | (channel 6) | ||
| + | \ | ||
| + | E | ||
| + | </pre> | ||
| + | These values become the duty cycles of six software PWMs running in the main loop of the firmware. | ||
==Software== | ==Software== | ||
Revision as of 19:26, 3 July 2006
Contents
Overview
The Walcott visualization integrates a set of rewired christmas lights into the Bemix system. A custom XMMS plugin running on Cocoa Table calculates five 0-255 values based on Fourier transform of the music playing in the lounge. These numbers are wrapped into a 4E Network packet and sent to the serial port to a PIC microcontroller. The PIC parses the packet using BemixOS technology and sets the brightness of each color of light using PWM.
Hardware
The visualization uses a PIC to decode a 4E Network packet containing six 0-255 values. The packet should look something like:
\ H v (ignored) (ignored) (channel 1) (channel 2) (channel 3) (channel 4) (channel 5) (channel 6) \ E
These values become the duty cycles of six software PWMs running in the main loop of the firmware.
