If you read the datasheet and look at the section where it talks of coefficients (C1, C2 and so on) it says something about factory stored offsets and how to calculate temp and altitude. Just looking at the sensor i can see that there is no component between the R1 and R2 contacts, just blobs of solder. You can see that
As for writing my own code, that is what i am doing, or looking at other code that will help with I2C EEPROM. More info on I2C EEPROMs would be appreciated.
After looking back at some basic I2C stuff I managed to get the value 127 from address 0x50 continually with no variation, 0 from 0x30 and noting at all from 0x77. Not even crazy y characters. I found these addresses with the I2C address scanner, as above. Do not know which is which, and why one is intermittent.
