Sending a 2D code via a hardware interface of a Pin-Pad

摘要

The invention relates to a computer-implemented method for displaying data allowing a payment of a payment item by means of a Pin-Pad connected to a cash desk system (230), the method comprising:
- receiving (101), by a first application program (235) of the cash desk system (230), a payment order (401) for the payment of the payment item, the payment order comprising an indication of the payable amount; and
- sending (106) a 2D code by the first application program via a hardware interface (215) of the Pin-Pad to the Pin-Pad for displaying said 2D code on a display (220) of the Pin-Pad, the 2D code encoding a transaction ID and the payable amount, the transaction ID being particular to the received payment order.