On my journey of developing SteemPay, I've come up with some interesting ideas regarding offline wallets (which I'll get to in another post) - but while thinking about the design of such a system I remembered an old project that I had begun building for Dash - vending machine software!
Well, I've finished it out, but this time it's focused around the STEEM blockchain!
The idea is that this software would be installed on a raspberry pi or other small and cheap single board computer, with a touchscreen (as seen in the video below). A successful transaction triggers a relay switch that, in turn, triggers the machines existing 'credit' mechanism.
Retrofitting an existing vending machine to accept steem or sbd is now very simple thanks to SteemVend! Theoretically, this could be used for any price-fixed operation. Redbox, slot machine, soda machine, arcade games, etc.
As always, this code is on my github and there is a video preview of it in operation below!
Payment was sent with SteemPay wallet and SteemVend is running on an Odroid single board computer.