Hello all,
I have put together a basic VU meter circuit using the LM3915 as my LED driver. The input to the circuit is a little pre-amp that I picked up at Conrads to amplify the signal from an electret mic. Everything works well...the LED's bounce up and down to music/sound, however one LED (connected to pin 17 on the LM3915) is constantly lit.
I have searched the forums and found a thread talking about using a resistor and capacitor on pin 5 (input ) to smooth everything out, but that didn't work....any suggestions!?
EDIT:
I also just noticed that LED 1 (LM3915 pin 1) is exceptionally dim
I have put together a basic VU meter circuit using the LM3915 as my LED driver. The input to the circuit is a little pre-amp that I picked up at Conrads to amplify the signal from an electret mic. Everything works well...the LED's bounce up and down to music/sound, however one LED (connected to pin 17 on the LM3915) is constantly lit.
I have searched the forums and found a thread talking about using a resistor and capacitor on pin 5 (input ) to smooth everything out, but that didn't work....any suggestions!?
EDIT:
I also just noticed that LED 1 (LM3915 pin 1) is exceptionally dim
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