Smart Speaker | Battery Powered Working Prototype and USB charging

Here’s a video:

Not much further explanation needed for this post. The design process for delivering power to all components of the system is complete. The topology is pretty simple:

12v Battery -> switch on positive rail -> 5v Switching Regulator & 12v rail -> Amp & 5v Linear Regulator -> Arduino

If you have any questions, please let me know.


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