The humidity seems pretty accurate, but the temperature differs by more than 15*F. Tried with several Arduino libraries. It was very easy to get readings in all cases, but the temperature readings are practically useless. It looks like terrible self-heating. When the unit is first turned on, the temperatures are accurate and then steadily increase to compensate for 15+*F higher than the room actually is. circuit board. It even pulls a small amount of heat away from your main Arduino board or any other board even if you use about an inch of wire to disconnect it. When I switched to a wire about 6 inches long, the readings became very accurate. Nice sensor, but you can't connect it directly to your design board. It should be fairly separate. Increased the star rating but left 5 stars for it. I've seen other boards where they are inherently insulated.
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