SHT21

For general Flowcode discussion that does not belong in the other sections.
medelec35
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Re: SHT21

Post by medelec35 »

Hi. I have already added it to v9.
It will be added to the update system asap. - done
Martin

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Re: SHT21

Post by jgu1 »

Hi Martin!

Perfect also in FC9. :)

Saw you have fixed the BM180 also, I have order one, look forward to play a little with this also. See in other fora that it should be possible to measure heights with this device as well.

I am very grateful to you.

Jorgen

medelec35
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Re: SHT21

Post by medelec35 »

Hi Jorgen, you're welcome.
To be honest, If I was you I would use the BME280
I used that to measure heights/Altitude.
It also has humidity and temperature sensing.
Martin

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Re: SHT21

Post by jgu1 »

Hi again!

I know the BME280 well and know it works in FC, used it the other day, but of course I will follow your advice Martin :D Now I have order one, so I play a little with it ;)

Br Jorgen

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Re: SHT21

Post by jgu1 »

Hi Martin!

As promised, when I received the BMP180 I would test, just received them, and hereby, thank´s. I have mad a quick test. I work perfect, but some of the regulation setting in proporties doesn´t make change, the temperature x1 > x16 I don´t see any changing by playing with this. The sleep funktion how does they work, and if the device "go in sleep" how do I wake them up again in the program :lol:

Are you kind to give a short explanation for these, and maybe upload a testprogram to Wiki, you are welcome to use mine :P

And any correction in my test is welcome.

Br Jorgen
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medelec35
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Re: SHT21

Post by medelec35 »

Hi Jorgen.
I have looked at the datasheet and temperature oversampling is just a trade-off between accuracy, current drawn, and sample time.:
BMP180 sampling modes.png
BMP180 sampling modes.png (94.69 KiB) Viewed 3506 times
In reality, you probably won't see that much difference if not using a battery.
If you are using a battery to power BMP180, then you want the lowest setting.
As for the sleep, it's to save power when not sampling, it will wake up when being sampled, then go back to sleep.
Martin

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Re: SHT21

Post by jgu1 »

Thank´s Martin. :)

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