If that is all you did then there is no way that you could have damages your arduino. You must have actually done something different. Favorite is getting the sensor the wrong way round, that is the only way you could get the sensor hot.
If that is all you did then there is no way that you could have damages your arduino. You must have actually done something different. Favorite is getting the sensor the wrong way round, that is the only way you could get the sensor hot.