Thu Oct 23, 2014 10:04 pm
How much of a budget do you have? There are some alternatives for getting monitors either cheap (under $20) or free. Suggested sources are: Freecycle (free), local businesses that are upgrading/replacing desktop PCs (probably free), local second hand/"thrift" shops (cheap). The monitors I use with Pis are generally 17" or 19" 1280x1024 and cost me $10 to $20, depending on what sort of sale is on.
For a school setup, you might send a note home with the kids asking the parents if they have any monitors around they'd be willing just give you. Specify what you're looking for (flat panel with DVI or HDMI connector) and see what comes back. As I'm migrating from 17" panels to 19" panels, I've started giving 17" ones (one so far, with a second to follow soon) to my grandson's teacher for the classroom (alas, no Pis in use there...but I'll work on that).
Of course, if you were local to me, I might find one or two to gift you with (any teachers with this problem in Vallejo, CA?).