Yes, I shouted that. And for very good reason - Arduino started me down the road of playing with micro-controllers (you can tell I haven't made a red cent on any of this - I call it "playing" :-)). I guess you could consider Arduinos to be my gateway drug into Raspberry Pis, Beaglebones, and PICs.
In celebration of Arduino Day, I decided that I should list a few of my favorite Arduino Projects (some are still in progress).
This is probably the coolest thing I started to write. It is also the most useful, as it would have it's uses with any receiver setup, whether it is a home-built radio, an RTL-SDR, or even an off-the-shelf radio).
I didn't do very much with this, and what I really learned wasn't even discussed in the post- I really learned how to 'break out' of the Arduino IDE and load an Arduino from the command line. With Linux.
This is the start of what ended up netting me a ChipKit WF32. I want (and still need to finish) a setup that makes it easy to log my radio contacts while mobile. The Arduino version is around 90% done, but with several things taking my time it hasn't been finished. And the ChipKit version has got a longer road.
I thought I'd have more of these, but I guess I don't. I do have a few "in the queue", though, so hopefully when I write some for AD15, I'll have a few more. Either way, I've learned A LOT and I know I have several more posts coming that use my Mega 2560 and Due (and maybe even that Leonardo I picked up a few weeks ago).