andriej:
I might try desoldering as I don't have problems with understanding it and there are no SMD elements. I just wonder how will sensor act without the temperature.
I would expect it to be a fixed temperature valueHow much data do you guess you need of the humidity only?
I'm looking for readings that differ by only 1 bit each (See http://fredboboss.free.fr/tx29/tx29_crc.php) so I have a chance of working out the polynom (Assuming it's standard CRC). So for example the humidity values would need to be something like 80%, 81%, 82%, 84% & 88% and no other bits in the reading apart from CRC can be different.I might also look for some old AA batteries to test the indicator. I don't have laboratory PSU, only one running 3.3V but might to try get voltage down with resistor or sth.
Weather station only shows 'low' battery (if its good, nothing shows up).
Okay then, maybe there is only 1 bit dedicated to battery or if it is 2 bits then it ignores all but low condition. Just breadboard a simple variable resistor through the PSU or swap out resistors sounds good.
