Antenna RFID IC Wireless Module. RFID or Radio Frequency Identification system consists of two main components, a transponder/tag attached to an object to be identified and a Transceiver also known as interrogator/Reader.
A Reader consists of a Radio Frequency module and an antenna which generates high frequency electromagnetic field. On the other hand, the tag is usually a passive device, meaning it doesn’t contain a battery. Instead it contains a microchip that stores and processes information, and an antenna to receive and transmit a signal.
To Read the information encoded on a tag. It is placed in close proximity to the Reader (does not need to be within direct line-of-sight of the reader). A Reader generates an electromagnetic field which causes electrons to move through the tag’s antenna and subsequently power the chip. The powered chip inside the tag then responds by sending its stored information back to the reader in the form of another radio signal. This is called backscatter. The backscatter, or change in the electromagnetic/RF wave, is detected and interpreted by the reader which then sends the data out to a computer or microcontroller.
|Frequency Range||13.56 MHz ISM Band|
|Host Interface||SPI / I2C / UART|
|Operating Supply Voltage||2.5 V to 3.3 V|
|Max. Operating Current||13-26mA|
|Min. Current(Power down)||10µA|
|Logic Inputs||5V Tolerant|
|Read Range||5 cm|
1 x MFRC- RC522 Antenna RFID IC Wireless Module For Arduino
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