This is actually a second revision/version, I previously made this set up two years ago in which I used an Arduino Nano. that setup was not proper and needed two sets of power supply (12V for Mosfet and 5V for the controller)
https://www.hackster.io/Oniichan_is_ded/music-reactive-led-strip-with-microphone-module-f0f7c6
Watch the test video.
In this version, I first use a Buck Converter IC (MP2314) to convert 12V to 5V for the Microcontroller. I used an Attiny85 as the main MCU.
why attiny85?
well its cheap and easy to use and is perfect for a project like this...
I programmed it with Arduino as ICSP method. (i won't be explaining the Flasing part in detail. if you want to learn how to program it goto this link https://www.hackster.io/Oniichan_is_ded/learn-how-to-program-attiny85-and-attiny13a-167359 )
Thanks UTSOURCE.net to offer electronic components for this project!
you can check UTSOURCE.net, they deal in all kinds of electronic components, for example, Arduino board, Attiny13, 85 and many more.
I created a PCB for this, the scheme is attached so you can check that out.
this PCB is basically a breakout board for attiny85 which has a Buck converter included along with a MOSFET as switch setup.
12V gets converted into 5V and it powers the attiny, 12V also is supplied to Mosfet with which the LED strip is connected, attiny controls the gate of MOSFET.
The microphone module is connected externally on breakout points with three wires.
I used a 12V 2600mAh Battery Pack for Powering this whole setup but it can be easily replaced with a 12V 1A wall adapter.
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