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mansardenbaron 02/02/2018
I've been logging data from this sensor board for a week, after a longer burn-in period (see attached image of air quality value recording). There's not much to say about the board itself, it's designed just ok and matches my expectations. However, it would be nice if a schematic was supplied. The pin information on the board is a bit sparse. I'm running it with a 3.3V I/O voltage, but I guess 5V would also work fine. A few notes I might add: - Pull RST to high for proper operation. I've observed that i2c might hang, once you start the firmware on the ccs811 sensor. - Don't be surprised that the HDC1080 reports a rising temperature when you turn the heater of the ccs811 on. That could be a feature, but also a design flaw of the board (sensors too close), depending on what temperature you want to get (local or environment). When going for a Temp/Hum. compensation of the VOC-Sensor, the local data may be of concern, but I haven't tested that. The ccs811 sensor again is somewhat tricky to use, because of its automatic baseline calibration, which might go wrong, for example if a sudden change in temperature or humidity occurs (when you open a window in winter). So in fact, the sensor might report totally wrong values. Make sure to always record the baseline register as well and take action on too sudden changes.
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  • Banggood Dear customer, Thank you for your order and before even attempting to explain the reasons leading to this unintended mistake, we would like to sincerely apologize to you. In our attempt to serve you better and retain you as one of our valuable customers, please contact our customer service representatives by this link: http://www.banggood.com/Contact-Us_hi111 We would highly appreciate if you could send us all the information listed here below: 1.Some photos of the shipping label, which can be found on the external side of the package; 2.The SKU number of the products you received. You can find this information on the label placed on the item itself; 3.Some photos or video to show the entity of the problem; 4.The order number and the product ID. Looking for your kindly reply. Have a nice day. Best regards, Banggood team  

    24/05/2024
  • mansardenbaron Dear Banggood team,just to make sure there's no misunderstanding: The sensor behaviour is to blame to the technology, not to Banggood or the board manufacturer. I have just left a critical review for others to understand that this board is not just a plug

    Reply 05/02/2018
  • GreenaGiant Cheersfor this deep review. Struggling to get mine to work at all. I have pulled reset high, not found that tip anywhere else, thanks. Did you assert the wake pin? And, I am assuming the address is 0x5A as the ADD pin is pulled low by the onboard 10k? Thanks in advance if you're able to suggest anything!

    Reply 30/04/2019
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