Operational Mode without Wifi Connection?

@esquester that's no problem, but ideally it would have the Offline Data Logging Package installed. In a pinch though, here's what to do:

1. Acquire a microSD card
2. Open up the Egg and unplug the USB connector from the circuit board.
3. Install the microSD card in the slot on the circuit board (near where the USB connector plugs in). It's spring-loaded and should "click in" when seated.
4. Plug the USB connector back into the circuit board.
5. Plug the Egg into your computer's USB port and navigate to airqualityegg.com and scroll to the bottom of the page to the Serial Monitor.(under the heading "Configure Your Egg"). You may need to install a plug-in for your browser as described on that page.
6. Select the Port associated with your Egg,, set the Speed to 115200, click Connect, then where it says "Type a message" enter aqe and click Send, and you should reach an AQE>: prompt.
7. In the box that previously said "Type a message", enter opmode offline and click Send.
8. In the box that previously said "Type a message", enter exit and click Send.
9. The Egg should report -~=* In OPERATIONAL Mode *=~-, at which point you should unplug your Egg from the computer.
10. When you're ready to download the data from your Egg, you will follow a similar procedure, but the commands you will type in after the AQE>: prompt are list files and download YYMMDDHH YYMMDDHH based on the listed filenames (you'll get one file per hour basically). You can type help download for more details. You'll need to copy and paste the data output into a file to save it and further process it.
11. If you are going to be doing multiple trials (cycling power to the Egg), you will probably also want to delete the old files between runs using the command delete YYMMDDHH YYMMDDHH otherwise data from successive power cycles will be appended to previously existing files. The reason for this is that in offline mode, without the offline data logging package installed, and without a Wi-Fi connection, the Egg has no way of knowing the real-world time so it will think it's January 1 1970 basically every time it starts up, and the record timestamps will reflect that so keep a good lab notebook.
12. As an alternative to steps 10 and 11, you can remove the microSD card from the Egg and plug it into a computer in the normal ways and work with the files that way.

Hope this helps. Ideally you can get on Wi-Fi though, as then you can simply use our online download tool to get your data out.