i want to write a program for reward point system . each time a user scan the card , they get 1 point and i can display the total points in the card into serial monitor. I try the use the code below. Is sit possible to add a mathematical function to blockcontent to adding points to the card T11_RFI…

RFID reader store data and write

cyberjupiter October 16, 2017, 9:01am 4

My bad.

But OP should already get the hint somehow.