µ[micro]electronics info

A weblog focused on interesting circuits, ideas, schematics and other information about microelectronics and microcontrollers.




Because I have not tested all electronic circuits mentioned on this pages, I cannot attest to their accuracy; therefore, I do not provide a warranty of any kind and cannot be held responsible in any manner.

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Digital Receipts System

An interesting crossover between hardware (MCU, card reader, display) and software (PHP web server) by Cornell University students.

I'm a "web application architect" in my job, so this project, connecting my belowed HW and web app, logically attracts me. The idea is simple: "When making a purchase with a credit or ATM card, the transaction information is automatically packaged and sent to a webserver where it can be logged in a database. A web interface would then allow consumers to log into their accounts and view their transactions online all in one place."

Take a look how Hain-Lee and Qinfeng does it: Digital Receipts System

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