Arduino internal temperature sensor related to this video: https://www.youtube.com/watch?v=mg3qhZfNl0w
This video shows my findings on Arduino internal temperature sensor readings with sources code in the description. I tempt 2 reading method and tested them on 4 boards and 2 temperatures With and without calibration values (TS_GAIN, TS_OFFSET), stored in the signature row.
Please see the video to understand the limitation of the funciton implemented in this source code
thanks Fabio