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Reverse View
Settings → Car → Reverse view. Dashwheel's own reversing screen on QF head units.
The Try it preview (made-up data): distance lines, steering lines and the rear radar around the car.
- Camera + radar, camera only or radar only. With Camera + radar the radar sits in its own panel on the driver's side, camera beside it.
- Distance lines in colour and steering lines that bend with the wheel (from the CAN box's steering angle).
- Radar from the rear parking sensors (closest distance, distance rings, glowing sensors), drawn around your car seen from above.
- Ground memory: a 180° map of the ground behind the bumper, built from the camera as you reverse.
- Adjust: calibrate the lines on the real picture (ground projection, lens bend). Try it previews it parked.
| Choice | What happens | Needs |
|---|---|---|
| Car app | Dashwheel's lines and radar over the unit's own camera screen | Accessibility service |
| Dashwheel | Dashwheel takes the camera over: own picture, no stock lines | Root shell, camera permission |
On the second screen: in reverse gear the second screen switches to the rear view by itself and back to its page after. Settings → Car → Reverse view → Second screen: Off, Camera, Radar, or Camera and radar. The camera there comes from Dashwheel's own picture and needs Simple display off; until then it shows the radar. Status: not car-tested yet.
If the takeover fails, the unit's camera is restarted and a chip says so. Which camera opens, and a learned reverse signal for cars whose CAN box doesn't report it, are set in Car signals.
On the K706 in the C4 Picasso, Camera + radar layout (French UI). Left: the rear radar around your own car, with the ground behind the bumper and distance rings at 0.5, 1.5 and 3 m. Right: Dashwheel's own camera picture with distance and steering lines, and a note that the tailgate won't open fully here.
Status: car-tested on the K706 (AHD 1080p camera, RZC Peugeot CAN box, rear sensors): takeover works in the car. Ground map and calibration lens: emulator only.
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