I am testing my Qwiic sensor that have Python driver modules and the one for the BME280 is giving strange results. So I changed to Arduino for testing using a BlackBoard. The Sketch was the basic with the addition of checking and setting the reference pressure. I live a few mile from PDX and up hill from it and the river. The Arduino Sketch returned about what I expected. Using Python on a Raspberry Pi 4B2 I got a negative altitude. This make the sensor useless. Is this a know problem? Is it getting worked on?
Dale