Thread Rating:
  • 0 Vote(s) - 0 Average
  • 1
  • 2
  • 3
  • 4
  • 5

Sensirion SHT35 support
#11

I have "medical issues" so it was difficult enough for me to solder the through the hole components. SMD isn't going to happen.

I emailed them and asked if they could sell me an SHT35-D with the address set for 0x44. Waiting to hear back from them.
Reply
#12

ClosedCube got back to me via email. They said I can order it in either configuration so I'm going to order another one configured as 0x44.
Reply
#13

Hi,

Yes, I also would be reluctant to "hack" a tiny and relatively expensive sensor like that.  It seems unfortunate that Closed Cube chose to fit a "short circuit", instead of a "Weak Pullup" (or pull-down) resistor, or even the same resistor value as is used for the I2C pullups.

So to make the address change, it would be necessary to "flip off" the Zero Ohms SMD resistor (with a fine soldering iron).  However, the "wiper" of the effective "selector switch" (which chooses between Vdd and Vss) appears to go directly to a "via" just above the pad.  Maybe also a via to the right goes to the Vss pad,  but would need to be tested?   So it could be "moderately easy" to connect a (very) fine wire from that centre "via" to either the Vss or Vdd pin on the edge connector.

Cheers,  Alan.
Reply
#14

(26-07-2017, 02:42)danner Wrote:  ClosedCube got back to me via email. They said I can order it in either configuration so I'm going to order another one configured as 0x44.

You don't need to buy another sensor, as I said some posts above, you just need to change the default sensor address on the TX software.

Reply
#15

(26-07-2017, 22:00)Werk_AG Wrote:  You don't need to buy another sensor, as I said some posts above, you just need to change the default sensor address on the TX software.
Yes, thank you. I'd rather not change it in software though so that if the SHT35 fails somewhere down the road, and closed cube no longer sells a replacement for whatever reason, I can simply swap it out for the SHT31 that I currently have. Not worried about 20 bucks. Besides, I'm going to see if I can get someone younger, and with steadier hands, locally, to move the shunt.
Reply
#16

The SHT35-D arrived today. Very quick shipping from the U.K.

Soldered the headers, installed the SF2 filter, brushed on the conformal coating and let it dry. Stopped Cumulus MX, removed power from TX0, swapped the SHT31 for the SHT35. Power up TX0 and by the time I got back to the house there was a reading on the receiver. I watched the readings fluctuate for a minute or two, started Cumulus MX and so far so good.

It has been 2 hours since I swapped the SHT31-D for the SHT35-D and it is tracking my other weather station the same as the SHT31-D. So it looks like the ClosedCube SHT35-D is compatible with the SHT31 library.

[Image: Vt2r7cZ.jpg]
Reply
#17

Thanks for confirming it.

Reply
#18

(04-08-2017, 09:42)Werk_AG Wrote:  Thanks for confirming it.

Hi,
I'm new in this forum , and i really dont understand well what u did for the SHT35-DIS-F .. I'h just bought 3 of them and i imagined that i can solder the pins to the wires normally , but i couldnt cuz they are so small .. 
And now i don't know what to do ? should i search for some kind of a support or smth like that ?

I thank you in advance.
Samia
Reply
#19

Hello, this sensor is very interesting - it is more accurate then SHT31 ...

   

Thank you for good hint...

Best Regards
Zdenek

Brandys/L Weather
Reply
#20

(24-07-2019, 09:57)brahisam Wrote:  I'm new in this forum , and i really dont understand well what u did for the SHT35-DIS-F .. I'h just bought 3 of them and i imagined that i can solder the pins to the wires normally , but i couldnt cuz they are so small .. 
And now i don't know what to do ? should i search for some kind of a support or smth like that ?

Samia

Hello Samia,

I don't understand exactly what do you need?

This sensor is usually connected to the transmitter using the shortest cable possible. You have to make the cable yourself.
The sensor can be connected via a connector or soldered directly to a cable. I personally prefer the connector, but the connection is less reliable.

Of course we can help you with cable production, but what about other parts? How do you want to build, connect, revive? Remember that this
project is primarily DIY. But I definitely do not want to discourage you, I will be happy to help you personally, I am happy for each newcomer.
With the WeatherDuino project, you can have a lot of fun while being very useful to your surroundings.

Good luck a have a nice day.

Best Regards
Zdenek

Brandys/L Weather
Reply




Users browsing this thread: 2 Guest(s)