useful ??

[navkram]

since I know very little in this area, seems cheap enough

[ZionPhil]

You can get the Arduino Pro Mini's that Glenn and I use for 9 to 10 bucks also. We solder on our own pins and it ends up looking just like that minus the USB connection. We use FTDI cables.

[BeeAmaker]

Well, there are lots of these versions out there. Sparkfun sells the Arduino Pro Mini (which is the same except no FTDI built on) for 9.95 and mpja sells this ,nano which is a good equivalent for $9.95 and it has USB built on.

But the cheapest I have found so far is a copy of the pro mini

It's (the one on Indegogo) not really a "good deal" but rather gives us another option.