Just found out a English datasheet for the PMS5003ST, which says that the temperature is a signed integer. This total sense as the temperature can be negative.
Alas, the _unpack unpack method inhereted from PMS3003 decodes the message as unsigned integers.
Just found out a English datasheet for the
PMS5003ST, which says that the temperature is a signed integer. This total sense as the temperature can be negative.Alas, the
_unpackunpack method inhereted fromPMS3003decodes the message as unsigned integers.https://github.com/avaldebe/PyPMS/blob/5b7d05f9f1ac711537730513b1c368e8201f7132/pms/sensor/pm/PMS3003.py#L61-L63
Therefore, negative temperatures will show as huge values.