This is a cashless payment system built around an ESP32 Wi-Fi microncontroller and an MFRC522 RFID reader.

Transactions are managed by a Node.js applications. It stores user information and transaction logs in a MongoDB database and handles API calls from the reader using Express.

The front end is built using Vue.js

This system is currently used to pay for coffe in the company I work for. Please note that this system's security is not suitable for high value transations.

The source code is available on my github:

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More info on the project page: [ Ссылка ]

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