This project implements an RFID-based attendance system using NodeMCU ESP8266, MFRC522 RFID module, and a 5V buzzer. The system allows users to tap RFID cards to record attendance, which is then sent ...

When an RFID tag is scanned, the system records the attendance and automatically sends an SMS to a specified phone number (e.g., the parent's or manager's number) using the SIM800L GSM module. The ...

This RFID based security system is based on micro controller AT89C52 and comprises a RFID module, a LCD module for displaying the status and a relay for opening the door. Fig.1 shows a user trying to ...

Product brings firm’s reader technology closer to device makers in a secure, easy-to-integrate form factor by enabling manufacturers to embed powerful RFID technology into a wide range of systems – ...

Fig. 2: Inductive coupled system. Near-field RFID systems send the data back using load modulation technique. As voltage is induced by inductive coupling in the tag, if there is a load a current will ...

Module reliably communicates with and power RFID tag devices in RFID systems operating in extreme temperatures, where other readers could overheat and fail. It can operate from -40°C to +85°C, where ...

Toronto-based Sirit Inc., a provider of radio frequency identification technology, has introduced the INfinity 196, a high frequency (HF - 13.56 MHz) reader module designed to address an array of ...

Here are 11 considerations from ELATEC for product managers, embedded system engineers and solution architects when evaluating an RFID module solution. This handy checklist will help you optimise your ...