Issue due to lack of knowledge (probably)

[mathos00]

Hello, I've been trying this software, which seems well organized, and readable. I'm working on a volunteer project for the Catalina Hyperbaric chamber to make a rate meter, so we need a very accurate sensor... thus the MS5837.... and I'd like to see if I can get this software to work in that project. But I'm not quite sure why I'm getting this output from the sample Arduino script included:

11:55:43.488 -> Pressure (mbar) = 49.55 11:55:43.488 -> Temperature C = 24.08 11:55:43.488 -> 11:55:44.038 -> Pressure (mbar) = 49.55 11:55:44.038 -> Temperature C = 24.08

Using Bluerobotics library I get this output:

12:35:47.409 -> Temperature: 23.88 deg C 12:35:47.449 -> Altitude: 184.26 m above mean sea level 12:35:48.476 -> Pressure: 990.80 mbar

[Scottapotamas]

I suspect I have an idea of the issue - this library was written and tested against a MS5837-02BA (1200mbar max) and some of the higher pressure rated parts such as MS5837-30BA (30bar max) use slightly different conversion constants.

My implementation didn't cover the other variants when I wrote it.

You can confirm which sensor variant you have by using the data gathered during the calibration constant readout during startup.

• The console output of i2c_basics example in setup() does most of this,
• If you can, add an additional print to display the sensor->variant value

I'm happy to add the extra conversion logic to handle your sensor variant, if that's the issue.