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Showing results for tags 'Energy harvesting'.
Hi, This is my first "serious" project. I want to build a coaster, which will measure the temperature of your cup (be it hot tea , cold beer or even fresh hot soup;) ) and notify you when it reaches you favourite value. You know how it happens, you place fresh cup of tea near your Leptop or TV and because it is too hot to drink right away you want to wait few minutes. But the internet or movie are so interesting that you compltely forgot about your drink. After you remember it is already too cold. And drinking warm tea or kakao is just disgusting:) Sometimes there is THE perfe