by ex-Gooserider » 26 Jan 2021, 02:35
The tough part is that it has to plug into the R-Net bus, so needs the circuitry to go from the switches (which are presumably (ON)-OFF-(ON) DPDT or possibly DPST switches) to speaking R-Net...
Obviously there is fancy packaging of the case, switch style and so forth, but electrically it has to be pretty simple and would be trivial to do a home-brew copy of everything but the R-Net comms, which I don't believe has been reverse engineered to the point of being able to duplicate it.
I've never played w/ R-Net, but I wonder if there are any sort of switch inputs that can be reprogrammed to do user designated functions? I know there are inhibit inputs, but can they be repurposed to use as control switches?
If so, it might be possible to do a box with a wire bundle that used the switch inputs and bypassed the R-Net comms....
If willing to not use the joystick for actuator controls, it would certainly be possible to do a direct wiring setup w/ a DPDT switch (and possibly a relay?) for each actuator. If doing this it might also be important to add limit switches so that the actuators won't be overdriven...
ex-Gooserider
T-5, ASIA-B
Jazzy 1100
Jazzy Select 6
Quickie Q-7
Invacare Mariner
Want to make / get a better chair, ideally one that stands.