For now it is still on a protoboard with its level converter.
And this is how it is connected:
There is definitively a difference in feeling compared to the system using uinput and the serial connection. That’s pretty surprising to feel what should be a pretty small difference in latency.
The code is simplified as well, here is the relevant section for the movements:
TrackPoint::DataReport d = trackpoint.readData();
if ((d.x!=0) || (d.y!=0)) {
Mouse.move(d.x,-d.y,0);
}
if ((d.state&4)!=0) { // I inverted 3 and 1…
if (!Mouse.isPressed(MOUSE_LEFT)) {
Mouse.press(MOUSE_LEFT);
}
} else { Mouse.release(MOUSE_LEFT); }
if ((d.state&2)!=0) {
if (!Mouse.isPressed(MOUSE_RIGHT)) {
Mouse.press(MOUSE_RIGHT);
}
} else { Mouse.release(MOUSE_RIGHT); }These are the things left to do:
- Finish the polishing/gluing
- Try to make that stream mode work (clock signals are ok), I’ll need to bring my oscilloscope.
- Add a third button: for now we have two-button emulation, but that also mean I don’t have a nice scroll, and too bad I removed that scroll wheel ;)
- Find an old USB hub and integrate everything inside the keyboard.