I'm working on an LED interface using an iPhone 3GS with serial connector cable. I'll likely be etching a custom shield once I'm finished, but in the meantime I'm curious to know what the best design approach would be.
I'd initially tested the LED pattern sequences by writing them directly to the arduino uno, but I'm wondering if I'd be better off writing an LED controller library for certain patterns, then build more complicated patterns via an iOS app that calls the library via serial. Which tends to be the better approach?
Thanks in advance!