PCB Design, Firmware and Driver vor the Dividat Handlauf Extension
See the Handlauf.sch and Handlauf.brd EAGLE files. The CAM output for
production can be found in the cam.zip file.
The Handlauf.ino is the Arduino based firmware for the built-in Arduino.
Download the "capacitive sensor" and "ewma" library from the Arduino library
manager.
The *.go files make up the Go based driver for the sensor. It can be built
using the standard Go mechanisms. A compiled version for macOS is available on
the release page: https://github.com/256dpi/handlauf/releases.
The binary provides the following options:
Usage of ./handlauf:
-addr string
WebSocket server address (default "0.0.0.0:8080")
-debug string
Debug server address e.g. ":1234"
-freq int
Sample publish frequency (default 60)
-min-range float
The minimum range (default 1000)
-threshold float
The threshold for on/off values
The driver contains a Web based debug interface to inspect the sensor values.
If the driver is started with the -debug :1234 flag, the interface is
available at http://0.0.0.0:1234.