Abstract: The integration of the QR payment mode with GSM-operated vending machines presents a modern solution that combines the convenience of digital payments with the familiarity and accessibility ...
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This LEGO vending machine actually works
Learn how to build a real working LEGO vending machine that can drop candy, coins, or small items! Step-by-step instructions ...
Famously, the save icon on most computer user interfaces references a fairly obsolete piece of technology: the venerable ...
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