For years I've been wanting to write something that lets me use a cheapo webcam to plot timeseries temperature data from cheap (ie. non broadcasting) thermomete

For years I've been wanting to write something that lets me use a cheapo webcam to plot timeseries temperature data from cheap (ie. non broadcasting) thermometers and thermocouples, something like the Chris' Coffee E61 grouphead digital thermometer[1] I have attached to my espresso machine. Like you I was also keen to automate my WSM smoker, and ended up buying a £20 Inkbird PID controller[2], hanging the thermocouple off the lid and hooking the 12v relay output directly to an old case fan attached via ducting to one of the vents. For I now get temperature stability to +/- 3 degrees C, and fuel that used to last 3 hours now lasts 11! My 2c aside, I really enjoyed reading your writeup, and I wouldn't have stuck with it and learnt as much had your chosen subject not been so close to my heart. [1]https://www.chriscoffee.com/e61-digital-thermometer-adapter-p/sss-04.htm https://www.chriscoffee.com/e61-digital-thermometer-adapter-... [2]https://www.amazon.co.uk/Inkbird-Temperature-Controller-Thermostat-Thermocouple/dp/B00ADEJVXK/ https://www.amazon.co.uk/Inkbird-Temperature-Controller-Ther...