[werk_ag]

Software with support for the SHT31 was published today.
Please read the change log file.

[spudstrawb]

Thanks Werk_AG. I'm just getting ready to head overseas for a week for work, so I won't get a chance to update everything until I get back. My SHT15 sensor should be here by then also, so I should be able to kill 2 birds with 1 stone.

[spudstrawb]

Time for an update. I installed the SHT15 and SHT31 sensors. I was getting some flat-lining in the charts for a while and it took me a while to work out the problem. Moving the TX unit a few inches was all that was required to get the data transferring reliably. I'll play with it some more but at least I know what the problem is now. I've had decent results over the last day and a bit so here is a summary:
SHT15 Temperature range 5.3 - 18.1 degrees Celsius
SHT15 Humidity range 39 - 90%

The SHT31 temperature has never read lower than the SHT15. The reading has always been the same or higher (up to 1.0 degree higher). The average difference (on the high side) is 0.5 degrees.

The SHT31 humidity reading has been within the range 3 percentage points lower to 2 percentage points higher, with an average of 0.5 percentage points lower.

The above values are from the CumulusMX data logs (30 minute intervals).

[Barrow4491]

Hi,
I have a HTU21D and was going to use it as sensor on my Rx station but I notice the voltage is 3.3 v and the board supplies 5v at the connector for this sensor.
Will it withstand the higher voltage?
Jim

[werk_ag]

...
Will it withstand the higher voltage?

Probably not.
There are versions for 3.3V and for 5V.

The images below are from the 5V version