Stage 1 of the project is now complete. We built a simple data recorder using an Arduino microprocessor to enable us to record typical temperatures during a roast to an SD card. This resulted in some useful data but we needed to make some changes to improve our understanding of the results.
We have now removed the unit to add 3 buttons for the operator to press to time-stamp critical stages of the roast. This will improve the data accuracy and will be important for when we begin building the second stage electronics that will try to automate the temperature control. So far so good!
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