Study of Smart Payment Wallet Card Using Low Power

Our paper aim is to design a reprogrammable smart payment card that replaces all other cards in the wallet constructed using an ultra low power e-paper display, capacitive touch sensor, NFC, and bluetooth communication. All-in-one electronic digital transaction card replacing the present multi card scenario is evolutionary for the most part of human history. In the olden days, people typically used wallets or purses to carry their possessions, particularly the currency notes. But today the technology forced us to replace currency notes with various payment cards. Hence the wallets have grown in size not because of the amount of cash, but because of the amount of cards we have to possess. In fact, an average person carries around at least 4 to 18 plastic cards in their wallets, including credit and debit cards, driving licenses, national insurance, store cards, membership cards and other identification cards. This indirectly increases the usage of plastic, which is harmful to the environment.