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Bluetooth Speaker (retro-fit)

A rear speaker from a surround system is retro-fitted with a 10w amp and a Bluetooth audio (A2DP) module

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Whilst I wait for delivery of the main audio processor for my other project (WiFi Center Speaker), this 48 hour project will fill the void of silence (that is the lack of music playing in the background). Fully enclosed, independent, powered speaker w/ Bluetooth (A2DP) connectivity.

Overall a complete success, easy to use, connect to (via Bluetooth) and easy use both volume controls (from the Bluetooth device [mobile / tablet etc] and from the rear volume control).
  • 1 × TDA2003 10 watt amplifier The main amplifier IC in a TO220 casing. Audio quality is not bad considering the ease of use overall.
  • 1 × 7812 Power Management ICs / Linear Voltage Regulators
  • 1 × 7805 Power Management ICs / Linear Voltage Regulators
  • 4 × 2200uF Capacitor Used to feed surges in power by the amplifier
  • 1 × Audio Transformer A cheap line isolation unit (LIU) that eliminates the digital noise from the Bluetooth module

View all 21 components

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mhm_khaledi wrote 04/12/2016 at 16:58 point

Hi buddy ..
Is there any way to send contact name and make a call to that name by xs3868 ?

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mhm_khaledi wrote 04/13/2016 at 12:29 point

thanks ;)

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