Writing the data consolidator script:
1. Read from all of the data sources.
2. Consider generating a date and time to add to your message.
3. Mash them together into a simple text that you want to display.
In our case the output from the data generator script was something like this: Monday, May 18 2015 22:54:59. Light rain starting later tonight. 59F, Rain: 0%, Wind: 4mph. Subway: A train departs 10:57pm. Bus (Stops Away) B25: 9 B44: 1. BTC: $233. Citibikes: 11.
The arduino code controls how often you will call this script for an update. You will hard code the url of the consolidator script in the arduino code.
The image above shows a sample php script that consolidates data and produces a message.