I got two questions so:
Does someone have experience in using the DS18B20 Temperature Sensor? I tried measuring the Temperature
in our fridge. It took over 20 minutes to measure the right temperature.
Could the reason be that in the fridge is no Air that circulates around the sensor? Or is it something different?
I do need my Arduino in a very cold environment (-30C). I will put it into a Styrofoam but I have to produce
some heat inside this case. I do use a 2s Lipo so how can I produce enough heat so that the Lipo is not freezing