Dynamic qr with android device

dear development team

need dynamic qr on counter display device as per bill amount
bill wise amount wise

in retail counter need when bill saved qr of amount display on this display
Note: in vishal mega mart when total item scaning finish then display amount’s qr on this dymanic display when customer payment done sucess then auto bill print othrwise payment fail then bill waiting for payment

From : Retail System

Patna , Bihar ph: 9334493507