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Updates 2013 February 18
It's been a while, hasn't it? Well, that's ok because we've got a lot of updates to talk about. Most of these have been effective on the site fora couple weeks now. A few may or may not be active when this article gets posted, but they'll certainly be applied in the ...
Mono VU Meter
Files
- VU Meter.sch - VU Meter EAGLE Schematic
- VU Meter Schematic.pdf - VU Meter PDF Schematic
Bill of Materials
This open source hardware project contains no parts.
Steps
. Insert capacitor
Insert the 10uF capacitor as shown. The negative leg of the capacitor (indicated by the white stripe on the side of the case) connects to pin 2 of the LM3916 IC. The positive leg connects to pin 3.
. Insert potentiometer
Insert the trim pot (potentiometer) as shown. In this circuit, the trim pot serves a dual role. It adjusts the brightness of the LEDs as well as the maximum range of the VU meter itself.
. Insert wires
Insert a red wire into the rail that the LEDs are plugged in to. This will serve as the +9V rail. Plug a green wire into the other rail. The green wire will be ground for this circuit.
Download steps w/o images
Download steps w/ images
Revisions
7 - updated description
6 -
5 - added youtube link. updated line numbers.
4 - changed LED part
3 - added description to project image
2 - added file descriptions
1 - Initial project release
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