10/17/2023 0 Comments Use otg smart card reader![]() It's used with a contact or contactless card reader (POS for payments, at the ATM, or even on your mobile phone). The circular metal contact is vital to connect to the chip below and activate the card electrically. ![]() It integrates a microprocessor, some memory, and some apps. Let's start with a definition: a smart card is a small portable computer, usually the size of a credit card, without a display and a keyboard.
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