Alternative use leak port Navigator

[EliotBR (Eliot)]

Hi @Andres,

@Andres

• There are two LEAK ports, J19/J20, for connecting sensors/sponges. Do they operate on different channels? In other words, is it possible to know which port is activated if water is detected?

• There is a port labeled AUX LEAK/J11 (-/+/S). Is this port for connecting the old SOS LEAK SENSOR? Is this signal independent of the other LEAK ports, J19/J20?

From the schematic (available on the product page):

@Navigator - Technical Details - Documents - Navigator PCB Schematic (p2)

all 3 ports end up at the same LEAK_SIGNAL trace, so there’s just one combined electrical signal for leak detection.

@Andres

My intention is to … detect a BMS failure

If you happen to not be using the PWM0 port it may be possible to monitor that with a Lua script for the failsafe behaviour you want.

Otherwise if you have an unused Serial port it may be possible to stop the autopilot from using it, configure and monitor one of the relevant Raspberry Pi pins via a BlueOS Extension, and send MAVLink messages to report / act on the status as relevant.