Hi Frank, I thought it about. But I measure (Vref at Vcc=3.33v) at 25°, just after power on about 1,26v (AD readings ~1550). This is almost exactly what they say in the manual. I've glued a PT100 at the case of the CPU. After 30 min I got readings abt. 2200. This is 1.77v. My PT100 sensor shows 37,8°C. That's why I've asked if someone has any experience with it.
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