I need a POS system that is in a concessions trailer. I need to set up two droids to communicate wirelessly with a pc to deliver menu selections. I need a very simple database to track adding and subtracting the orders to a touchscreen monitor. There will be only 8 products that will need to be ordered. The pc will need to collect these orders and communicate with two touchscreens to allow the food servers to know how much product needs to be produced. I have writing a template out for the droids on App inventor, but I am not sure if this will work This should be a very simple system.