My RasPi is still 5 agonizing weeks away from being shipped by Allied. However, Yourduino should be sending my Arduino starter kit in the next few days. Super psyched about that. Time to dust off my old textbooks and put all my high school C++ programming knowledge to work.
may want to try adafruit.com for your pi/arduino needs. they seem to restock raspis rather frequently and have a ton of good stuff and info.
i grabbed two of arduinoUNO/wingshield/RGB-LCD and built one of them this weekend. The great tutorials on adafruit and numerous brewers out there on the Pi/arduino platform sharing info made my project painless.
I'll post up some pics when I have the Pi talking to the arduino. Will probably go serial to start but am thinking RS-485 for multidrop (1 pi and a few arduinos).
oh yeah, that article: easy-web-interface-with-gpio-access-runs-on-raspberry-pi is definitely not the way to go. Putting IO updates into a DB and then querying the DB to find out what to turn off/on is just f@#$ed. Seems this person was only interested in the "how" and should've asked themselves "why".
Hey, I'm working on getting a similar setup to what you have to control a heating element. I have most of the code up and running and was wondering what app you used for your android device? Any info you could post would be greatly appreciated.
This is really inspiring... Looking to do something similar. However I am curious what is the advantage of I2C over normal GPIO for driving the SSR? GPIO seems to work. Is it speed? More potential devices chained on I2C? Reliability?