Are these direct readings from the sensor or are you using filtering? The sensor will reset to 88C (ca. 190F) on power up, and this can happen when doing a long conversion and you lose power. The sensor appears on the bus, since it’s able to use parasitic power, but as soon as you try to read a tem…

DS18B20 Dallas Temperature readings jumping high at random intervals

MisterNetwork September 16, 2015, 3:36am 14

Wow! Not 2 minutes after upgrading to 0.4.5 it threw it’s first jump from 80 to 136F.
Hmmm…

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