Problem: I want an LED to change based on my email status, but Gmail has no API (not that I would want my gmail credentials being passed around that way anyways). Twitter has a nice API, right? Sure. I want the Twitter API, using PHP, to tell my Arduino that something has changed.
Solution: I don’t know how to do this. Turns out that communicating with Arduino via Serial is more confusing than I thought. I spent a day and a half playing around with getting data into the Arduino.
Conclusion: This project has changed. I will now focus on creating a blinking project without the use of Arduino (only relying on the Arduino for power).