We’ve seen a lot of coffee roaster builds over the years ... the strapped on Arduino on the other side of the popper. We’ve seen popcorn poppers used like this before, of course.

The best part is that you don't need a fancy coffee roaster to do so -- a simple air popper that you might already have for ...

the roasting process is pretty quick. You'll put a similar amount of coffee beans in the popper as the machine's suggested ...