Lm3915 Calculator Updated !!better!! Here

If you don't want to do the math, use these common configurations for a standard supply: Target Full Scale ( VREFcap V sub cap R cap E cap F end-sub R1 (Program) ILEDcap I sub cap L cap E cap D end-sub 1.25V Ωcap omega Ωcap omega Direct Line Level 2.50V Ωcap omega Ωcap omega High-Output Audio 5.00V Ωcap omega Ωcap omega Standard Logic Level 10.0V Ωcap omega Ωcap omega 10V Log Display Blog Post: Building the Ultimate 30dB VU Meter 1. Mode Selection: Dot vs. Bar LM3915 Dot/Bar Display Driver - Mouser Electronics

In an age of OLED displays and Arduino FFT (Fast Fourier Transform) libraries, why bother with an LM3915? Two reasons: lm3915 calculator updated

: It takes an analog voltage (like an audio signal) at Pin 5. Mode Selection If you don't want to do the math,