Playing Wave file using arduino

This is a simple circuit to play wav files using arduino Nano V3.0 ,it consist from 4 buttons ,each one play specific wav file loaded to SD card. Step 1: Parts 1- Arduino Nano V3.0 (I used the chines version called Funduino Nano). 2- SD card Module. 3- SD card. 4- Bread Board. 5- four push Button . 6- four 22K resistors. 7- one 4.7K resistor. 8- BC546B NPN transistor. 9- Speaker. 10- wires. Step 2: Prepare ...

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