In this project, I have used an RFID reader (MFRC522), Arduino microcontroller (Mega 2560), Arduino programming lanuage and other components to create an RFID-based smart lock. This lock is a small ...
Build your own DIY cardboard security safe with a working code lock to keep your money or small valuables safe! 🏦🔒 In this step-by-step tutorial, you’ll create a functional cardboard mini-safe using ...
Learn how to make a cardboard security safe for storing money, notes, or valuables — complete with a working code lock! 🔐💵 This DIY tutorial uses cardboard, paper clips, rubber bands, and simple ...
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