python thermometers

idea: read data from various thermometers

reality: we have one dallas 18s20 or 18b20 connected via 1wire what is mostly used on RaspberryPi

PULL REQUEST FOR ANOTHER DEVICES ARE WELCOME

supported logger

'thermometer.d18s20.w1' write data from thermometer to logger as list of values, this allow to use i.e. fluent for store data into graphite or another type of data storage.

instalation

$ pip install thermometer 

basic usage

measured values are in degrees of Celsius

>>> from thermometer.dallas_18s20 import w1
>>> w = w1.dallas_18s20()
>>> w.get_temps_aliases()
[('870155007fff0c108a', 24.437), ('080255007fff0c10a5', 32.5)]

alias usage

measured values are in degrees of Celsius

>>> from thermometer.dallas_18s20 import w1
>>> w = w1.dallas_18s20()
>>> w.alias('870155007fff0c108a', 'temp1')
>>> w.get_temps_aliases()
[('temp1', 24.437), ('080255007fff0c10a5', 32.5)]

Note about Dallas 18S20 and 18B20

during development I found out there are two Dallas thermometers 18S20 and 18B20

• DS18S20 High-Precision 1-Wire Digital Thermometer, 10.000010EF0000
• DS18B20 Programmable Resolution 1-Wire Digital Thermometer, 28.000028D70000

so far name was badly chosen, for 18s20 it was wrong, regarding historical instalations I decide to let it be. Interesting resource about 1Wire devices: http://owfs.sourceforge.net/adapters/patch.html