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Gepubliceerd op 13 nov 2012
VU Meter Tower based on LM3915 IC.
10pcs of plexiglass, 20 LEDs of different color. Powered by a 5V phone charger. This is the circuit I used.
https://dl.dropboxusercontent.com/u/257 ... 203915.jpg
Feel free to experiment with the values because you may experience some flicker on the LEDs.
Schematics: (replaced link)
http://goo.gl/JyU7O diagram from this page:
http://goo.gl/kld0w
There are a few differences in my vumeter. The resistor values are a bit different, also the capacitor is of a smaller value.
The following are just for inspiration...
http://www.aaroncake.net/circuits/vum...
http://www.ti.com/lit/ds/symlink/lm39...
http://pbelectronique.com/site/images...
Categorie
Zo-doe-je-dat en stijl
Licentie
Standaard YouTube-licentie
v podstate je tam všetko popísané, a k tým vysokosvietivím,
-Output current programmable from 2 mA to 30 mA
pozri v popise diódy či sa zmestíš do 30mA