The PC2ASD+(TM) (Plus) retains the classic features of the PC2ASD(TM) and Includes two new important features: VEND SUCCESS and DOOR OPEN signals from the vending machine. The PC2ASD replaces the keypad on a AMS Sensit 2 or Sensit 3 VMC vending machine with a USB interface that can be controlled by a PC or embedded controller. Includes cable, technical support and Software Developers Kit (SDK) with sample source code. By placing the vending machine in "FREE VEND" mode, the engineer or programmer can completely control the coil spin of the vending machine, confirm the product dispensed successfully, and is notified of a DOOR OPEN event. The latest in PC controlled vending.