Hi Seeedstudio. I meant I didn't know how you made a profit at 1 (or 3) boards for $10 which I assume is why you discontinued it. But your current options are still fantastic.
I don't understand how the open source option can work though. Even if I want to take that option, when I submit my board order, I don't have pretty documentation explaining how it works, how to assemble it, or what the firmware should look like. So it seems like there would be a very limited market for a "mystery board" even with the schematic posted.
And there's always little mistakes on a "first draft", so my board might require cutting a few traces here, soldering a few jumpers there, etc. If it's my design, it's my hardship which is fine, but that must make it a lot harder to sell it to someone else.