Let's Make Robots!

Digital Temp / Humidity Sensor


Vendor's Description: 


Designed by WBA Consulting, The WBA-TH1M Module makes it very easy to use Sensirion's SHT11 Digital Temperature/Humidity Sensor in your microprocessor controlled projects. The two-wire digital serial interface is simplified and sample code is available for several microprocessors.

The design is based upon an optimum circuit from experience with 3 different microcontrollers (Parallax Basic Stamp, Cypress PSoC, and TI MSP430). It's meant to be very easy to use and versatile without requiring any circuit modifications on the user's part. The module can be used right next to a processor or at large distances with proper cable (Cat 5 or similar shielded cable). It's a reliable and bulletproof circuit that works directly with any microprocessor and without additional circuitry.

Comment viewing options

Select your preferred way to display the comments and click "Save settings" to activate your changes.

Not a bad price for this sensor.  I've used it on a BS2 and loved it.

Btw, where did you guys get the chip, I couldn't find it at digikey, jameco or mouser...  :/

I don't actually know - Andrew (WBA Consulting) sends them to me pre-assembled, so I don't stock the individual components.  I found a few bare chips on ebay, but no proper source.  I wonder if he buys them straight from Sensiron.  I'll have to ask.  

That's a good writeup!  WBA also used the same pinout as you.  He compiled sample code for other microcontrollers on his site, too. 

Also, I forgot to put a link to the project page - it's right here: www.gadgetgangster.com/235

 

Yes its the same library i use too .....

...... and thanks for the tip in your write up with regards extending the length of the cables, (not forgetting the load resistors - i did - they are essential ;-)

I have updated my writeup too include your SHT 11 .

Here is an example of how to use it with an Arduino.

Remote Temperature/Humidity Sensor

my walkthrough shows the  SHT10 module - (the SHT11 is accessed the same way)

To add :- Its very easy to use if use arduino - as there is even a library to make life simple

DewPoint calculation can also be calculated with the raw info.....