Just to check, are you using up to date firmware?
v71 - BigRam - Espruino v1.3
And you're saying the temperature still reads right, it is just the humidity that is off?
Yes - off by 20 RH% (below expected)
@user7114 started
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v71 - BigRam - Espruino v1.3
Yes - off by 20 RH% (below expected)