The PLUM Picker(tm) is a Raspberry Pi Hat which controls the item selection process. When the PLUM IN is used in conjunction with a Raspberry Pi, the hardware keypad can be replaced with a touch screen to handle the item selection process. With the Raspberry Pi connected to the internet, the PLUM Picker can be used as an interface between a vending machine and the cloud to enable the use of a cell phone or a remote client as a selection device.