An application that will receive commands and send SMS responses. Can be a base for an SMS interface towards SM5100B, or pretty much anything else regarding the SM5100B GSM shield.
The SM5100B might be moved out as a separate library if there are requests for that, for now, this is how I turn on and off the heating at our cabin, and I just wanted it to work.
I have put this under GPL. Get in touch if you have issues with that.
You need to install the SHT1x library from here: https://github.com/practicalarduino/SHT1x Install it according to these instructions: http://www.arduino.cc/en/Hacking/Libraries
In order to use this with SHT15, the easiest way is to get the breakout board from SparkFun, wire ground and VCC to gnd and +5V on the arduino, and connect SCK to pin 11 and Data to pin 10. In that case, this should work out of the box with this code. Also, you should add a relay in order to acutally control something. I have gone for JW1SN-DC5V and ALE1PB05, both from panasonic. You also need a transistor, resistor and a diode. Connect it like this: http://playground.arduino.cc/uploads/Learning/relays.pdf
I run pin 13 and 14 equally. 13 is by default connected to a diode, so you can monitor if it is activated or not.
Good luck!
Morgan Tørvolt morgan(at)torvolt.com