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PX4 Autopilot Software
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MS5803 driver for water pressure/depth measurement. #14390

Open kefey6ecb opened 4 years ago

kefey6ecb commented 4 years ago

Hello. I'm new to pixhawk development. Now I'm working on a project which is quick similar to the unmanned underwater vehicle called 'HippoCampus'. I would like to utilize MS5803-14bar as a pressure sensor to measure the water pressure, and convert the pressure reading to the depth of the vehicle. I found the ms5803 driver from repo of HippoCampus, which is this https://github.com/EugenSol/HippoC.

I have read the instruction in this link, https://dev.px4.io/master/en/sensor_bus/i2c.html

Are the driver able to work by copying the ms5803 driver folder into src/driver/barometer and add the driver to the cmake config file that corresponds to the target I want to build?

If not, which part of the code I need to modify?

bkueng commented 4 years ago

Hi. Yes that should work. You'll also need to add it to the startup script: https://github.com/PX4/Firmware/blob/master/boards/px4/fmu-v3/init/rc.board_sensors.

kefey6ecb commented 4 years ago

Hi. Yes that should work. You'll also need to add it to the startup script: https://github.com/PX4/Firmware/blob/master/boards/px4/fmu-v3/init/rc.board_sensors.

Thank you @bkueng ! I connect MS5803 through I2C Bus. In rc.board_sensors file, I found the codes below # External I2C bus hmc5883 -C -T -X start lis3mdl -X start ist8310 -C start qmc5883 -X start

What are -C, -T and -X indicated? How can I write the code to initialize ms5803?

kefey6ecb commented 4 years ago

Dear @DanielDuecker, What do you think regarding to this topic?

DanielDuecker commented 4 years ago

Hi @kefey6ecb , those are parameters (e.g. mounting rotation etc) when starting the sensor Check this out, as an example for a magnetometer https://github.com/PX4/Firmware/blob/9275937b4403b5614f8730db9f916a06355cf563/src/drivers/magnetometer/hmc5883/hmc5883_main.cpp#L318

I don't think you need any of those for the moment. However, Eugen's implementation is quite old, we are currently updating/extending px4's underwater robot/HippoCampus support. Please feel free to contribute

stale[bot] commented 4 years ago

This issue has been automatically marked as stale because it has not had recent activity. Thank you for your contributions.