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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
18. 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.
19. 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.
20. 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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