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Original question:

HDC1080: Humidity sensor %RH reading variance vs EVM

HDC2010: EVM board humidity difference

Xiao Zhu2
Expert 3215 points
Part Number: HDC2010

Hello Team

Customer put three EVM board at same situation. their temperature are same, but humidity are difference. I don't know why. So could you give some comment about it? Thanks.

  • 0
    TI__Expert 5695 points
    Hi Xiao,
    The boards that you are showing in your picture are not the EVMs but a TI design (www.ti.com/.../TIDA-01625), just to clarify. As you may know and can be checked in the HDC2010 data sheet, the max RH (relative humidity) accuracy is +/-3%, which means an overall range of 6% of possible values distributions with respect to the reel RH. Therefore none of the values shown are violating this range.
    The problem will be if any of these values have a difference of greater than 6% with respect to a reference instrument used to compare to.

    Thanks!
    Jose