There is a Really great example on how to use the DTT22 and a LCD with lots of refindments. However I have a good use for data storage of the readings, Temperature and Humidity over a 24 hour or more. I would like to store this data on one of the SD card readers / writers used for the Arduino. To exchange the data to graph the changes in climate over a period of time. I do not see a node for the SD reader / writer anywhere in the hardware listings. This is a very useful device and will come in handy for tons of uses. Do you have any ideas on how to add this to the library? Thank you all for your help.