AdafruitHTU21D-F Temperature & Humidity Sensor Breakout Board [ADA1899]

I am new to the world of Arduino, so at this point much of my coding has been modifying code that I download....gets me going and I have learned a lot. With that, I bought this and did just the same, but the only code I found was for displaying on a serial output screen on my laptop.... so I worked in code for a small 1" display and a traditional 16x2 shield.... took a bit of work on my part, but in the end I am able to display on either unit.It updates fast... I have a buffer of about 1000ms to keep the 2-point decimal from changing too rapidly...and now it is legible. It appears to be fairly accurate and what I wanted it for was to monitor the temperature and humidity in my basement and I am very happy with the results.

I expected to get the STEMMA QT current version of this board that is shown in the pictures and not the old header-only version. Pics shouldn't show the new one if they aren't shipping that one.

Works great and it was easy to configure on the Arduino. Go to the Adafruit website, get the library and you can have it running in just a few minutes. I now send my humidor stats to the web every hour.

Best temperature sensor I have ever used, and Adafruit is an absolutely fantastic company to purchase from.

Works as expected, using in a home automation project with controlled by an altmega328.

This is a lovely sensor, does its job well. As long as you don't overvolt it so much that it fries the internals. I ran this at 5V for almost 3 months and it worked well until I started getting errors after 1 minute of up time. Don't overvolt it and you should be good.

Adafruit is a well-known name among the electronic aficionados and this sensor is up to the expectations.I've used it with one of my Raspberry to monitor temp and humidity. It's simply perfect.I highly recommend seller and item!

I purchased this sensor, along with the BMP180, to form the basis of a Raspberry Pi weather monitor. I would love to have given this well designed and built module a 5 star rating BUT what a thoughtless design drop off on the pin out of the connector. The Data & Clock connections are swapped over between this sensor break out board and the BMP180. So instead of being able to solder both devices onto a bit of Strip (Vero) board - job done. I now need to make a hand wired correction. Not a big job, but should have been unnecessary.UpdateI am afraid I have had to derate this product from 4 to 3 stars. The primary reason is the software needed to get the board working is a real headache. The standard I2C driver that the manuals tell you about won't work with this particular device, Took me several days before I found a method of getting the data out of it. I had to search the web for a clue, then copy some code that didn't mean a thing to me, which thank goodness worked, so I can now use the device. So if you are either a nooby, or someone simply trying to measure humidity without any claim to geekdom, don't buy this device. If on the other hand you are well acquainted with delving into the IO control registers of the ARM, then it is brilliant and probably deserves 5 stars

Excellent little device to add to a project using a microcontroller such as an Arduino or Raspberry Pi.