“By vmetro known indicators that are incorporated in appliances and audio devices that serve to indicate or display an audio signal level. It is also interesting to note the decorative potential of this device, which we can assemble in many applications: HI-FI amplifiers, portable amplifiers, automotive equipment, stereos PC, home cinema, etc … On the market several specific integrated circuits assembly VU meters, in this project we decided on the AN6884 , being an integrated easy to find and a very low price. This circuit is capable of controlling five LEDs with only a few external components. For a stereo version AN6884 we need two integrated circuits with their associated components.”