Self Check Out
A simple POS self check out system for hackerspaces
The goals are to provide a rapid, easy, self checkout system for lab members.
 Example use cases
Lab member gets drink from fridge, finds their name / enters pin on touchscreen, scans drink.
Lab member finds their name / enters pin on touchscreen, adds money to account via bill validator.
Lab member gets drink from fridge, scans their bardcode card and scans their drink.
Lab member enters admin page, scans an item to be added to fridge, enters quantity, enters price paid. It's added that they bought it, and they stocked it.
Database back end for inventory.
Responsive, simple interface that will run on the old PIII class tablet computer at the lab.
A web front end that shows statistics, who's buying what, what is popular, other funny and fun trivia deduced from the database. Perhaps let multiple people use the data to learn web/db programming (read only).
- Things we have
- Support for RS232 barcode reader (we have PSC HS1250)
- Support for RS232 bill validator
- Support for some sort of POS keyboard
 Future additions
How hard would it be to turn this into a usable open source point of sale system? Some of the parts are there. Central database, etc.
- Hardware that we don't have that would be possible:
- cash drawer (we dont need, but support would allow real POS use)
- receipt printer
- pole display