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Hello all, Ok, so i'm making a VU meter for a stereo system.
I just bought an LM3915 Log driver as it was reccomended to me on this forum. However, the LEDs are nowhere near responsive enough. It seems life the sound input "cant make the LEDs move" (sound input is good, though).
Only the LED on the end of the lit up string is mimicing the music beat.
Being logarithmic, the input power must double every time to light a new LED, correct?
I have the circuit working fine, and I've adjusted all the controls - it's the chip that I dont think is what I'm after.
Is the LM3914 what I need?
EDIT: I used the attached circuit.
(pic posted...)
I just bought an LM3915 Log driver as it was reccomended to me on this forum. However, the LEDs are nowhere near responsive enough. It seems life the sound input "cant make the LEDs move" (sound input is good, though).
Only the LED on the end of the lit up string is mimicing the music beat.
Being logarithmic, the input power must double every time to light a new LED, correct?
I have the circuit working fine, and I've adjusted all the controls - it's the chip that I dont think is what I'm after.
Is the LM3914 what I need?
EDIT: I used the attached circuit.
(pic posted...)
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