Adafruit datalogger shield

Adding an SD card to the datalogger would be a good step. Here is the adafruit loggeshield with a temp and light sensor attached. Using ladyada's sketch called sensorSketch under folder dataloggerShield, you can see the values in the DEBUG window.

Then using adafruit-light-temp-logger/lighttemplogeer.pde, the data is logged to the SD card and also a time stamp added. Works like a charm.

NOTE: to have the LEDs working, you need to add a jumper from DigPin2 and 3 to the LED connections on the shield (yellow and orange jumper on photo)

Now to take the sensor circuit and enclose it in an outside case and connect to an XBee and we have a wireless station.