HDC2080EVM: HDC2080EVM

Petar Ananiev

Part Number: HDC2080EVM

Hello team,

Recently I have tested the HDC2080EVM, using the GUI. However, after a couple of tests, I have found out that the sensor humidity range is between 0% and around 80%. Once the humidity is above 80% the sensor measured values drop to 0 and once the humidity is a flat 0 the measured values start to increase. Is that a common problem, or something might be wrong with the sensor.

The first graph shows the problem with % above 80 and flat 0. The second is operating between 80% and 20%, with a good follow, but offset.

Best regards,

Petar

over 5 years ago

0 Josh Wyatt over 5 years ago

TI__Guru* 91206 points

Petar -

i have not seen this - is it repeatable? right @ 80%RH every time? If so, then I think something is damaged inside the sensor on the EVM.

0 Petar Ananiev over 5 years ago in reply to Josh Wyatt

Prodigy 60 points

Hi Josh,

So basically, it happens every time the RH% goes above 80%, during all tests. And about the offset, might it be related to this issue or maybe it is different problem?

Regards,

Petar

0 Josh Wyatt over 5 years ago in reply to Petar Ananiev

TI__Guru* 91206 points

Dear Petar -

Perhaps something is wrong with the EVM? could we help you get or send you a replacement and you can send me that one to look at?

you can send me email at: josh.wyatt@ti.com so we can help get this resolved by trading shipping addresses.

0 Petar Ananiev over 5 years ago in reply to Josh Wyatt

Prodigy 60 points

Dear Josh,

I will discuss the matter with my mentor and i will inform you as soon as possible.

Best regards,

Petar

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HDC2080EVM: HDC2080EVM