“Lovely little device... once you "crack" how to interact with it!
Particularly nice: It has a link you can close with a blob of solder to confure it for I2C address 0041, and thus you can have TWO of them on a single I2C line.
(Of course, I2C is not meant for long distances, so don't imagine that you could have one in the kitchen, one in the bedroom. But for $32 (price of a pair Huzzah or Sparkfun ESP8266s... $16 each) you could have two in webservers on your LAN)
It comes from Adafruit, and their documentation, etc, is USUALLY excellent. Not so for this. For a "how to", including setting up the servers, see... http://wywtk.com/ec/iec/iec220-HTU31D-tture-humidity.htm”
“Arrived in a few days, the Adafruit tutorial was excellent as usual, and it is working well. I used it to provide temperature and humidity in conjunction with a BME280 for pressure. The BME 280 also gives temperature and pressure but not as accurately as the HTU21D-F.”
