Bluetooth Light Show Speaker Propagation Systems Limited

Abstract

The Bluetooth Light Show Speaker plays music in mobile phone wirelessly then drives the light strings to flash. The flashing patterns depend on the beat of the music. The music data from the mobile phone is streamed to a Bluetooth module BC5. The module converts the music data in I2S format and outputs to a stereo audio digital-to-analogue converter. The converted audio signals are amplified by two speaker power amplifiers to the speakers. Also, the audio signals are output to three filters, low-pass, band-pass and high-pass filter. The outputs of those filters are used to drive the corresponding driver circuits to generate the flashing patterns on the light strings. This Bluetooth Light Show Speaker can be used in decoration of houses or shops. It also can help setting up the lighting effect in parties.