Unstablr Baro in Voxl 2 mini

[v_v_ramarao]

Our setup is:
Voxl2 mini running PX4 on DSP
ESC mini
Hires IMX214
Tracking OV7251

The Problem:
The drone moves up and down constantly in position mode.

Bench Test:
The on-board Baro readings, when observed in PX4-listener, continuously change (couple of meters over 10 seconds)... the baro-reported temperature gradually increases to 50 deg-c and accordingly the pressure readings decrease. The test is done indoors with Voxl2 mini board in open condition (without enclosure), no propellers.

Request:
We are obliged if you could share the setup info for adding an external baro (BMP280 or similar) with I2C interface.

[Eric Katzfey]

@v_v_ramarao We do not sell any external baro hardware so you would have to locate a suitable peripheral from a different source. Then you would have to connect it into VOXL 2 mini. There is no spare i2c port but you could share the magnetometer i2c port on J19 as long as the barometer has a different i2c address than the magnetometer. Then you would have to change your px4 startup script to not start the onboard barometer driver and instead start the external barometer driver.