LM3915 VU METER
A simple LM3915N based VU meter. The audio input is provided by an electret microphone which is amplified by the low voltage audio amplifier IC LM386 and fed into the dot/bar LED driver.
A simple LM3915N based VU meter. The audio input is provided by an electret microphone which is amplified by the low voltage audio amplifier IC LM386 and fed into the dot/bar LED driver.