What is RC522?

What is RC522?

The RC522 is a 13.56MHz RFID module that is based on the MFRC522 controller from NXP semiconductors. The module can supports I2C, SPI and UART and normally is shipped with a RFID card and key fob. It is commonly used in attendance systems and other person/object identification applications.

How does Arduino RFID work?

RFID working protocol After the electromagnetic field is generated and detected by the tag, due to mutual coupling a voltage is then generated by the tag antenna coil by induction which then serves as power for the tag.

How do RFID writers work?

How RFID Writers Work. RFID reader/writer sensors use short-range, low-power radio waves to transmit data from tags, where the data is stored, into the electronic device the sensor is connected to. In this case, we’re going to use an Arduino as the device by adding an RFID sensor.

What is RFID reader RC522?

RC522 is the highly integrated RFID card reader which works on non-contact 13.56mhz communication, is designed by NXP as low power consumption, low cost and compact size read and write chip, is the best choice in the development of smart meters and portable hand-held devices.

How do I restart RFID?

Information

1. Make sure the IF2 is powered on.
2. Using a paper clip, push and hold the reset switch for three seconds. The LEDs on the IF2 flashes.
3. Release the reset switch. The IF2 reboots and restores the default configuration.

What are the applications of RFID?

Here are the main RFID applications you can find in your daily life

• Traceability in the supply chain.
• Logistics and inventories in the retail industry.
• Security control and jewelry.
• Cosmetics and medicines.
• Control of disposals and tools in hospitals.
• Libraries.
• Files and archives.
• Aviation baggage control.

How do I use RFID reader?

In a warehouse or distribution center, this technology is used to automate data collection. The transceiver reads radio frequencies and transmits them to an RFID tag. The identification information is then transmitted from a tiny computer chip embedded in the tag and broadcasted to the RFID reader.

What is the function of RFID?

Radio Frequency Identification (RFID) is a technology that uses radio waves to passively identify a tagged object. It is used in several commercial and industrial applications, from tracking items along a supply chain to keeping track of items checked out of a library.

Can a rc522 be connected to an Arduino?

Fortunately, even though the module is powered through 3.3V, the rest of the pins are 5V tolerant. This means, we can just connect the RC522 module directly to an Arduino like this: The wiring I presented above uses SPI communication rather than I2C.

How does the rc522 RFID reader module work?

The RC522 RFID Reader module is designed to create a 13.56MHz electromagnetic field that it uses to communicate with the RFID tags (ISO 14443A standard tags). The reader can communicate with a microcontroller over a 4-pin Serial Peripheral Interface (SPI) with a maximum data rate of 10Mbps.

What kind of memory does the rc522 reader have?

The keychain has 1kB memory in it which can be used to stored unique data. The RC522 reader module can both read and write data into these memory elements. The reader can read data only form passive tags that operate on 13.56MHz.