How to make an homemade opensource thermometer with an arduino

It's summer time and all of you are enjoying the vacation their way. It is true that it is hot those day. There is nothing better than an ice cream . But we also need to be careful and know the temperature around you to grab convenient clothes by checking your thermometer. Why not make your own homemade thermometer with a Raspberry Pi board. This is what made a maker called Chelsea alias ''cldougl''. Let's see the