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.

Xbee remote sensor station

Revisiting old posts - connect sensors to an XBee and send data to a base station that includes a datalogger and later an ethernet connection.

Power is an issue so alllowing the XBee to sleep is a good idea Faludi tested battery life and for 98% sleep mode

XBee using one analog channel connected to photocell and 10K resistor voltage divider circuit1000ms sleep, 20ms awake, transmissions every 1000 ms, 9600 baudConfig on remote radio:ATRE,ID3333,MYAA,DLBB,D02,IT1,IR64,SM5,SP64,ST14

and 100%

XBee using one analog channel connected to photocell and 10K resistor voltage divider circuit1000ms sleep, 1ms awake, transmissions every 1000 ms, 9600 baudConfig on remote radio:ATRE,ID3333,MYAA,DLBB,D02,IT1,IR64,SM5,SP64,ST1

Sensor housed in waterproof box like a fuerte box or a simple Witz Keep it Clear $7

arduino xbee temperature sensor - UPDATE

Been a long time since I looked at this project. Using Tom Igoe's Making Things Talk book, I got an Xbee with an attached potentiometer to send ADC data to an XBee attached to a PC.

Then the data was parsed in processing to plot a dual bar graph of sensor value (ADC) and signal strength.



The drioids.it XBee breakout board can be powered by up to 12V (on-board voltage regulator), and also has outputs for 3.3V.

To run a temp.sensor or other sensors will probably require a separate 5V circuit. The current circuit has the pot connected to AD0 (PIN 22) of the XBee, so could feasibily attach sensors to AD1,2,3 (all at 3.3 V).

The greatest arduino woodpecker project

The woodpecker project using an arduino - love it.

Programming arduino wirelessly using Xbee

Faludi wrote a beautiful tutorial on using XBees to program arduinos, and a wireless connection to the internet using xbee.

Upgraded Xbee - processing screen

update XBee firmware

Following LadyAda's Tweet-A-Watt instructions, firmware upgraded on all XBees using the USB breakout board from www.droids.it

arduino xbee temperature sensor

Starting on a remote temperature sensor that will be connected to the web (perhaps).  I can hopefully log temperature data and also display real time on the web using a PHP script.  Here are some useful links:

Tweet-A-Watt from LadyAda is great
and also in the forums  lots of details



Here is the inital mock-up...

Code to use in processing may be modified from Tom Igoe
and XBee library