Learn how to build an RFID door lock system using Arduino for secure and smart access control. This step-by-step guide covers circuit connections, coding, and hardware setup to create an automated ...

Here We are going to connect Arduino UNO, RFID (MFRC522) & Ethernet Shield with MYSQL Database. So for that first we should connect our Arduino Board with the Ethernet Shield & RFID Module. By using ...

RFID-Enabled Power Control with Arduino Uno Arduino code that enables the power of a USB connection for a certain timespan after scanning a valid RFID tag. By powering tue USB connection of a ...

Learn how to send SMS with Arduino UNO R4 WiFi using the Circuit Digest Cloud API, Without the need for GSM Module. This step-by-step tutorial includes code and setup instructions.

Therefore, an effort was made to design a tool for “identification of impedance changes in metals using an Arduino Uno-based RFID RC522” which is relatively inexpensive and easy to carry.

Looking for practical Arduino projects? This guide shows how to control a relay from your smartphone using an Arduino Uno — either via Bluetooth or Wi-Fi.

Using the RFID starter kit from Elektor provides a good basis to carry out numerous electronic experiments with the Arduino Uno. We show just how simple it can be to realize an application.

The RFID system consists of two main components: an RFID tag and an RFID reader.The RFID tag has different formats. It can be a sticker like the one placed on supermarket products to prevent theft, on ...