Measuring the baseline. Creating the automated temperature measurement system

In order to test the system we needed to be able to log the temperatures in a normal freezer to create a base-line to evaluate the final product.

Initially we planned to use an Arduino system how ever that would have required creating a PCB which is time consuming. So we changed to a Raspberry PI that reads the output of a temp sensor placed in the freezer.

 

Logging the temperature to create a baseline and understand the frequency and severity of defrost. The Python code and the EasyEda schematics are stored in

 https://github.com/AdrianMolecule/enzymecooler/tree/master/temperature%20logger As you can see in this image in this particular case where the freezer is set to cool level 4 the 'normal' temperature is close to -18 Celsius.

We'll enhance the code to create graphs and publish the results after we have enough log data including the defrost event capture.