LED Volume Display LM3914 LED Bar Display Driver

[@jp040759]

Very cool chip. I have worked with the entire family of LM391X chips in the past. I built a permanent 12 v battery voltage indicator with it. It measured volts from 10.5 to 15 volts in .5 volt increments to show battery voltage in car with off then engine running to show volts resting all the way up to with alternator fully charging it.

[@AllAmericanFiveRadio]

Thanks

[@T2D.SteveArcs]

ldr or photo transistor light or ir meter..... love you vids keep up the good work respect from the U.K.

[@AllAmericanFiveRadio]

Thanks

[@T2D.SteveArcs]

ooohhhhh wow string a few together germanium rectifier ... zener clamp n cap RF detector strength meter

[@AllAmericanFiveRadio]

Thanks

[@T2D.SteveArcs]

they do a log version lm3915 i think

[@AllAmericanFiveRadio]

Thanks

[@binhthuvo5561]

Very nice!

[@AllAmericanFiveRadio]

Thanks

[@XPFTP]

forgive me for not undertanding.. but where is the volume ??

[@AllAmericanFiveRadio]

The voltage that drives the LEDs.