Hi there,
I am playing around with implementing radar proximity sensors on our drones. Looking at the ardupilot parameter list, it says that four proximity sensors can be configured, however when I open up the parameter list for our flight controller (Cube Orange, running Copter 4.4.0), settings for only three proximity sensors are available. I then checked the ardupilot code and saw that the maximum number of proximity sensors has been set to 3 (libraries/AP_Proximity/AP_Proximity.h:line 31)
Is there any reason for this limit? Has there been any testing done with 4 proximity sensors?
For reference, in our case, each radar module communicates with the flight controller using the DroneCAN protocol.
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