Wednesday, December 16, 2015

Circuit Diagram Interfacing EM 18 RFID to AT89S51 Microcontroller

Robotronicdiagram. - Here is Circuit Diagram Interfacing EM 18 RFID to AT89S51 Microcontroller like in Figure 1 below. The main component in this interfacing diagram are AT89S51 IC, EM 18 RFID module, and LCD module. With this circuit schematic we can know the easy to interface EM 18 RFID to AT89S51 Microcontroller. In here we will show you also the component part ans simple description of this circuit diagram. 

Circuit Diagram 

Component Part
  1. EM 18 RFID
  2. AT89S51
  3. LCD module
  4. Resistors
  5. Capacitors
  6. X-Tal 12 MHz

Circuit diagram like in Figure 1 above is Circuit Diagram Interfacing EM 18 RFID to AT89S51 Microcontroller. According Circuitstoday site describe that RFID or Radio Frequency Identification is a method in which electromagnetic waves are used for transmitting data for the purpose of identifying tags attached to objects. An RFID system consists of a transmitter (tag) and a reader.The tag is encrypted with a unique code and the reader scans this code for the identification purpose. The tags are generally of two types: active and passive. Active tags have a battery fitted to it and it transmits the unique code periodically or in the proximity of the reader. Passive tags are powered using the electromagnetic induction from the signal transmitted by the reader. Typical applications of RFID are access control systems, ID cards, human identification, animal identification, payment systems, tagging books, replacing bar codes, tagging merchandise in stores etc . RFID tags are available in different shapes but the most common shape is in the form of a card. The RFID readers are available in the market in the form of a module with all the supporting hardware.

Please read more this article from original source about Circuit Diagram Interfacing EM 18 RFID to AT89S51 Microcontroller using link Here.

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