I'm going to be teaching a college course next May using Arduino, and I wanted a nice "cheat-sheet" poster to put up in the room where we'll be working. I found this one
posted in the old forum last year and an SVG version
posted later in the thread. They were pretty good, so I've taken those and modified the design a bit: different layout, targeted more toward beginners and programming, and a bunch of small tweaks here and there.
You can download a PDF of the cheat sheet
, and the SVG source is hosted in a Github repository
I hope it's useful for others, and please let me know if you see any errors or have other suggestions. Thanks!