SETUP:
INSTALL THE ARDUINO MAIN SOFTWARE : https://www.arduino.cc/en/main/software
INSTALL THE SH1106 AND THE GFX LIBRARY
DOWNLOAD THE VUMETER SKETCH AND UPLOAD IT ON ARDUINO NANO.
THE PCB HAVE TO SUPPLY WITH 12VDC .
COMPONENTS:
2 RESISTORS 10K
2 ELETTR. CAPS 1uF 25V.
2 ELETTR. CAPS 100uf 25V
2 TRIMMER 47K 500MW
