Feature

●Equipped with a reverse polarity protection diode, which can effectively prevent the circuit from burning due to the reverse polarity of the power supply.
●The louder the sound, the stronger the LED lights up from bottom to top. When the sound fluctuates, the LED flashes with the music.
●When using an independent comparator circuit, the circuit is slightly more complicated, but the structure and principle are easier to understand.
●DC voltages between 5V and 12V can be operated with reverse polarity protection.
●The VU meter is a voice-activated sensor, so no audio needs to be connected. Simply turn on the product. It flashes when a sound sounds.


Description

Item type: VU meter
Material: plastic
Size: length 10 cm / 3.9 inches x width 3 cm / 1.2 inches.
Lamp beads: 5mm round head fog like LED, uniform and non-dazzling (multi-color optional);
Power supply: DC 5V-12V is available, the board comes with a micro USB socket, you can use the corresponding phone charging cable to connect the power supply, and 2 pad ports are reserved for users to lead their own wires;