I just received my RC522 RFID reader and made this simple Arduino access control system that uses the reader, a buzzer for the alarm and a relay shield for the security system. The relay can be used ...

RFID technology identifies objects using a unique identifier through an RFID tag and reader system. RFID tags can be read-only, with fixed identifiers, or read and write, allowing information updates.

A Lock Box that uses RFID, an SD card, and an Arduino to open and close the box and log who and when someone opens it. RFID machine access solution for a Fab Lab, based on ESP32. Uses modern C++ with ...

// - For this project, use a power supply of at least 5V 2A. If you use a power supply with good quality components, 1A current is enough. // // - If possible use good quality cables for the power ...

You have seen RFID Door Lock Mechanism in some Hotels and other places, where you don’t need a key to unlock the room. You are given a card and you just need to put ...

Abstract: Identification of corrosion in the tool industry is very important because it minimizes the impacts and losses due to damage to the tools used. Although there is already a corrosion ...