İ couldn’t managed to monitor internal Barometer values in mission planner status page.
İ bought and integrated external Barometer BMP280+AHT20 into quad system. Result is still same
Before testing with mission planner and qgroundcontrol, i scanned i2c addresses of the items (using Arduino scanner), i saw all four i2c addresses (compass, int baro, ext baro, temperature sensors i guess). There is no address conflict.
During trials i saw that if i don’t supply power from lipo battery but USB only, i measured around 0.8Vdc at 5V pins (most probably because of the sensors drawing so much current. When i de-solder all sensors, i measured 5V at the pin), so i have always used lipo battery with 5Volt measurement at the same pins.
When I had loaded previously INAV Firmware I saw that internal barometer was working. I even saw the altitude values.
Try reloading the firmware. To be sure you have the right version download the .apf file from here and use Mission Planner’s load custom firmware function to flash it F404-std
I downloaded the .apj file from the link.
When I try to load custom firmware using Mission Planner, I received warning saying that "no need to upload, already on the board.
OK, then it’s the same firmware. But, it’s not seeing the barometer for some reason. Nothing much to see in the Wiki here F405 Wiki other than talk of several versions. That’s an old board but perhaps someone with one can chime in.
Thank you Dave. I am working on it. I think it is something related with firmware version. may be barometer is not supported. I will try to load older firmwares step by step.
