Motorized fader board for JMRI throttles
The project uses a couple of Yamaha LS9/01V96 motorized faders (rebranded ALPS Apline RSA0N11M9A0J) as JMRI throttles.
The code here is for an Arduino Nano + a Nano motor shield that
- set the position as received from JMRI for each fader (when controlled from the computer screen or another connected device)
- read the changed position and send it back to JMRI, when the slider knob is touched
For touch sensing the project makes use of the CapacitiveSensing library, with 1M resistors connected to the sensing pin.
Various internal constants (timing, motor PWM limits etc) are tuned for a 12V power supply as input to the motor shield.
The corresponding desktop application can be found under the java/ folder. Its dependencies are the purejavacomm and jna libraries that come with JMRI.