[MikeM]

When I ordered the temp/hum sensors for my WeatherDuino system I thought I was being clever and and ordered 3x SHT31 sensors so that all the temp sensors is of the same type.
One for outside temp on TX unit, one for inside temp on RX unit and one for the WD unit.

Yesterday I was going through the software configuration of the TX, RX and WD. Their is only an option on the TX unit for the SHT31 sensor.
I take it I'll have to order something like HTU21 sensors for the RX and WD units which is supported by the software configuration. Or might their be a work around that would allow me to use the SHT31 sensor I already bought?

[werk_ag]

When I ordered the temp/hum sensors for my WeatherDuino system I thought I was being clever and and ordered 3x SHT31 sensors so that all the temp sensors is of the same type.
One for outside temp on TX unit, one for inside temp on RX unit and one for the WD unit.

Yesterday I was going through the software configuration of the TX, RX and WD. Their is only an option on the TX unit for the SHT31 sensor.
I take it I'll have to order something like HTU21 sensors for the RX and WD units which is supported by the software configuration. Or might their be a work around that would allow me to use the SHT31 sensor I already bought?

Hi MikeM

The type of temp / hum sensors supported by the RX and WD units are also specified on the respective parts list.
The only work around is adding support for the SHT31 on the RX and WD software. It's possible that at some point in the future I will do it, but I can't say when.
For use inside the house, the HTU21D is a really good and precise sensor.

Regards

[MikeM]

The type of temp / hum sensors supported by the RX and WD units are also specified on the respective parts list.
The only work around is adding support for the SHT31 on the RX and WD software. It's possible that at some point in the future I will do it, but I can't say when.
For use inside the house, the HTU21D is a really good and precise sensor.

Thank you Werk_AG,
I'll order some HTU21D's for indoor sensors.
When I decided on using the SHT31 for outside, I though it would be clever to use the same sensor for all and never looked any further into it.

[werk_ag]

MikeM, allow the use of the same type of sensor, on all of the three units seems to me a good idea.
I already did some changes in the RX and WD software to support the SHT31 (and the SHT21 too), however at moment I don't have any SHT31 available to test the results. Would you like to help me, trying a test version?

Regards

[MikeM]

MikeM, allow the use of the same type of sensor, on all of the three units seems to me a good idea.
I already did some changes in the RX and WD software to support the SHT31 (and the SHT21 too), however at moment I don't have any SHT31 available to test the results. Would you like to help me, trying a test version?

Regards

I will be happy to assist.
My system is not up and running as yet, still waiting for antennas RF tx/rx modules and TMP36 sensor.

I did manage to figure out how to test the TX unit using the debug function in the TX configuration through the Arduino IDE serial monitor. TX unit working as it should, except for the system temp (still waiting on TMP36) and RF part due to waiting on the antennas.

Haven't figured out how the RX unit configuration test mode works yet.

The WD unit is working ,except for not communicating via RF yet. I suppose the inside temp would show on the TFT display when connected and configured.

Not sure if the current state of my system will be of any help, but if I can assist I'll be glad to do so.

[werk_ag]

Not sure if the current state of my system will be of any help, but if I can assist I'll be glad to do so.

I think it is enough to test the use of the SHT31 on the RX and WD unit.
Could you please give me by PM and email address to send you the modified software?

The WD unit is working ,except for not communicating via RF yet. I suppose the inside temp would show on the TFT display when connected and configured.

The WD unit can show on the TFT display the inside temp received from the main unit (RX) or the inside temp from it's own T / H sensor.
Having a T/H sensor connected to a WD unit it's not mandatory. This can be useful when the WD unit is placed in a different place from where the RX unit is installed (some people have WD units in several location of the house)

Haven't figured out how the RX unit configuration test mode works yet.

When a RX unit boot up, it will wait forever until it receives from a TX unit, data of Wind, Rain and outside T/H. This procedure it's important to correctly initialize the unit, however most people want to test the RX unit, even before they have a fully working TX unit, so a test mode was added. It allow the RX unit to jump the initialization procedure, and show some data on the LCD.
Keep in mind that after running the RX unit in test mode, you should program the RX unit again with test mode disabled, and then perform a factory reset (pressing the push button for 5 seconds).

Thanks

[markkkk42]

Hi Werk

Talking about making all the sensors the same on the boards. The BME280 sensors are very cheap on ebay and very easily found and they have all 3 functions wouldnt it be easier just to use them and disable the barometric pressure on the ones that dont need it. That way it would be easier wouldnt it?

[werk_ag]

Hi Mark,

There is a reason to not do that, at least on the TX boards. The BME280 is not well suited to use as outside temperature / humidity sensor, its capacity to recover from large periods of high humidity levels are not so good as the Sensirion sensors.

I added support for it just on the Pro2 PLUS RX / Base Units, because it works very well at home, and saves us the use of a supplementary sensor for atmospheric pressure.

[markkkk42]

Hi Mark,

There is a reason to not do that, at least on the TX boards. The BME280 is not well suited to use as outside temperature / humidity sensor, its capacity to recover from large periods of high humidity levels are not so good as the Sensirion sensors.

I added support for it just on the Pro2 PLUS RX / Base Units, because it works very well at home, and saves us the use of a supplementary sensor for atmospheric pressure.

I thought there may have been a good reason why..thanks for the explanation. I will use the other sensor then for the TX board

[werk_ag]

One of the supported Sensirion sensors (SHT1X, STH21 or SHT31) will do a better job for you, and will last more time.