Motivation
As a Shakuhachi player I need my hands on the flute. So I use me feet to manipulate parameters and switches on the synthesizer. This module was originally build for my Shakuhachi to Synth project to provide the possibility to connect foot switches with the synthesizer and keep the patch intact when they are removed. The signal is not routed through the foot switch. Instead CMOS switches are used, turned on and off with the foot switch. So the signal stays within the synthesizer and the connection to the foot switch carries only DC. Removing the foot switch does not interrupt the signal flow in the synthesizer.
Specs and features
- Four independent switches
- Signal flow stays intact when foot switch removed
- Runs on +/-15V and +/-12V
- Power consumption below 10mA each rail
Implementation
Schematic
Foot switch connector schematic: Control board
Description:
The switch in the DG202 is hold in on position with a 100k resistor against the positive rail. With a foot switch attached you can pull down the hold voltage when you close the foot switch.
Calibration
- None
Building hints
- None
Special parts
- None
Download
Foot switch connector control board documentation downloadFoot switch connector control board Gerber files download
Foot switch connector faceplate *.fpd file download
Foot switch connector: Front view
Foot switch connector: Side view
