Top Positive Review for Gas Sensor Module on Banggood USA|Shopping USA

17% OFF CJMCU-8118 CCS811 HDC1080 Carbon Monoxide CO VOCs Temperature And Humidity Gas Sensor Module US$23.99 US$28.99 View It

Overall:

kf1965 18/12/2017

Отличная плата, интересные датчики, НО. После включения начинает плавно(примерно за час) расти температура с 23С до 29С. Нагреватель HDC1080 отключен - проверял. Может это CCS811 разогревает плату? В помещении около 23С Excellent board, interesting sensors, but. After switching on, the temperature starts to rise gradually (about an hour) from 23C to 29C. Heater HDC1080 is disabled - checked. Can this CCS811 warm up the board? The room is about 23C

Comments (2)

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mansardenbaron Yes, the CCS811 heater can add easily up to one degree C. It could be a feature, if you want to see an effective local temperature for compensation of some effects on the CCS811. If not, it's a bit of a design drawback..
Reply 04/02/2018

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aligeda The problem is that css811 draws about 54mA at 60mW and since they share the same PCB and ground plane the heat transfers to hdc1080. Don't use the hdc1080 for ambient temp and humidity. it gives wrong data, I fell for the same issue.
Reply 03/05/2018

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