Light Speakers

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=== Schematic === === Schematic ===
 +[[Image:LightspeakersRevA_SCH.jpg|thumb|center|400px|LightSpeaker Rev. A Schematic. Made with EAGLE]]
-=== PCB Board ===+=== PCB Layout ===
 +[[Image:LightspeakersRevA_PCB.jpg|thumb|center|400px|LightSpeaker Rev. A PCB Layout. Made with EAGLE]]
=== Parts List === === Parts List ===

Revision as of 21:09, 2 June 2012

Contents

Overview

Light Speakers receive an audio input and toggles a SSR (Solid State Relay) with the "beat". The light speaker accomplishes this by amplifying the incoming sound, filtering the sound with a bandpass filter for the desired band and then putting the output of the filter through a "peak" detector which will turn on the relay for a longer period of time when something gets through the filter.

Electronics

Schematic and PCB files are available on github.

Block Diagram

Amplifier

Band Pass Filter

Peak Detector

Schematic

LightSpeaker Rev. A Schematic. Made with EAGLE
Enlarge
LightSpeaker Rev. A Schematic. Made with EAGLE

PCB Layout

LightSpeaker Rev. A PCB Layout. Made with EAGLE
Enlarge
LightSpeaker Rev. A PCB Layout. Made with EAGLE

Parts List

Prototyping

Version 004

Semi Complete May 24, with Solid State Relay.

BOM coming soon along with PCB board and a finalized schematic.

Enlarge

Version 003

Completed 12 May 2012

Enlarge

This time the LED is replaced with a relay switch which AC powered lights can be plugged into.

Version 002

Completed 12 May 2012

Enlarge

This version still only lights up an LED, but it also does a better job of filtering out noise so that the on and off is much crisper.

Version 001

Completed 12 May 2012

Enlarge

This circuit passes the signal from a audio jack into an LED based on the amplitude of the signal alone. It works. The potentiometer determines how low the bass must be to be let through.

Team

  • Chris Woodall
  • Rusty Shomberg
  • Patrick Ehrlicher
  • Tom
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