Using I2C sonar (MB1200) with pixhawk

ArduCopter Copter 3.5
1

Hi,
I’ve tried connecting the sonar according to the instructions in this page, with no success. The pixhawk don’t show any reading of distance in the “sonarrange” field.
It crossed my mind that in the instructions they only configure two parameters, and leave the sensor address to be zero. Maybe some address should be defined in the RNGFND_ADDR ?
any other suggestions?

Attached is a screen shot of the range finder parameters.
thanks!

rngfndr
rngfndr.jpg1428×807 347 KB

2

Hi there
I have the same problem. Did you get to a solution?

3

I’m sorry, It was so long ago I am not sure. I have a vague memory I did test the sonar in practice, meaning the problem was solved, but the performance weren’t very good in windy conditions so we wound up using a radar instead.