a question for LM3915, i already made a sensor of low-pass filter sound dBmeter using microphone with LM3915, and it seems the LED working, but the problem is, even the 10th LED not lighted, it already have a 4,5 volt DC current from the pin to the LED.. so i can't use it as a sensor if there's always 4,5 volt(that means always bit "1" and never "0", i want the sensor to be active high if the LM3915 reach max dB, by using the 10th LED current) if i'm gonna use the current to become an input for microcontroller.. is it true when the circuit is working, there's a voltage in the LEDs even it's not lighted by the LM3915 IC ?? oh, by the way, i'm using running dot mode.. a reply to this post is really appreciated