AC, Thanks for your kind words. I will create a new thread about this, but just for now here are some quick answers.
I am using an Arduino Ethernet Shield to get internet access, and it seems to work well.
I wasn't aware of phase change materials being used for vaccines, but it makes sense. I will have to ask at my local pharmacy to see if I can get some. Do you know what materials they use and at what temperature they change state?
I had seen the project about Vacuum Insulated Panels. Maybe I will look into that idea later, after I have the controller working.
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