• on Audio/Video/Photography
  • Published in issue 2/2010 on page 30
About the article

Winamp Controller

Winamp control unit with motorised potentiometer and USB interface

Winamp Controller
This project implements a physical progress bar for Winamp. Here a small ATmega microcontroller uses the USB interface to provide a bidirectional link between the Winamp software and a hardware studio fader, which acts as a combined indicator and entry device.
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Products
Gerber file

CAM/CAD data for the PCB referred to in this article is available as a Gerber file. Elektor Members can exclusively download these files for free as part of their Membership. Gerber files allow a PCB to be produced on an appropriate device available locally, or through an online PCB manufacturing service. Elektor recommends its business partner Eurocircuits as the company of choice for its own prototypes and volume production in selected cases.

Extra info, Update

Physical progress bar for Winamp
Fast forward and reverse using a physical slider
Power supply via USB port
Data transfer via USB port
Song title display on LCD module (2 x16 characters)
Four buttons for Play, Stop, Next, and Previous
Runs with Winamp 5.5 (tested with Winamp 5.541)

Components
Download the BOM list
The BOM (Bill of Materials) is the technically exhaustive listing of parts and other hardware items used to produce the working and tested prototype of any Elektor Labs project. The BOM file contains deeper information than the Component List published for the same project in Elektor Magazine. If required the BOM gets updated directly by our lab engineers. As a reader, you can download the list here.
Want to learn more about our BOM list? Read the BOM list article for extra information.

Resistors
R1 = see text
R2 = 10kOhm
P1 = 10kOhm preset
P2 = mixing desk fader with motor, Alps type RSA0N11M9 (10kOhm) or RS60N11M9 (5kOhm); see text
Capacitors
C1,C2,C3,C4,C5,C6,C9 = 100nF
C7,C8 = 47pF
C10 = 47µF 16V radial
Inductors
L1,L2 = 10µH axial choke, e.g. Bourns JW Miller 5300-13-RC
Semiconductors
IC1 = FT232RL (FTDI)
IC2 = ATmega16-16PU (Atmel), programmed
IC3 = L293D (ST) or L293DNEE4 (TI)
Miscellaneous
K1 = USB socket, type B, PCB mount
K2,K4,K5 = 5-way SIL pinheader, 2.54mm lead pitch
K3 = 6-way DIL pinheader, 2.54mm lead pitch
S1–S4 = pushbutton, 6mm footprint; PCB mount, e.g. Multicomp MCDTS6-5N
LCD1 = LCD module, 2x16 characters, e.g. Displaytech 162C
PCB # 090531-1
Project software, file # 090531-11 from [5]
Kit of parts, order coce # 090531-71 including PCB and programmed microcontroller

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