9个LED组成的音频电平表电路, Audio VU meter 9 leds
Specifications
5LEDVUMeter kit is based on LB1409 IC from SANYO, which will indicates the volume level of the audio signal it senses
SUPPLY 12V DC @ 50mA
PR1 REF SET
PR2 AUDIO LEVEL SET
Schematic
Parts List
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