EM RFID reader module uses a RFID reader that can read KHz tags. So, it can be called as a low frequency RFID reader. The EM datasheet is av. Introduction. Radio frequency Identification (RFID) is a wireless identification technology that uses radio waves to identify the presence of RFID tags. Just like Bar. 1) The RF ID Reader – EM type of RFID reader is used for demo in this post. 2 ) RF ID tag – The Tag contains an Integrated circuit for.

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We make use of Passive tags here. As the name implies these tags do not have a power source.

Active tags are costlier than the passive ones. While in vicinity of a RFID reader the tag responds by sending information contained in the factory programmed memory array. When power is appliedthe reader generates rifd electromagnetic field which is induced by the antenna present inside the tag.


For card detection response, a mini buzzer is used. The LED will glow along with the buzzer sound.

rfld This detector response circuit is built on a base boardover which the EM module is plugged on. Now we shall connect a Servo motor to Arduino.

By this way we can control a door lock connected to the Servo arm.

EM-18 RFID Reader

Your Arduino cannot source enough power to both. Remember to disconnect this pin while uploading the Code.

Upload the following code to Arduino. After uploading the codeshow the Tag near the Reader. The main components of the RF ID system are: Tags are available in different Encasements. Widely used are the Visiting card type tags. The Antenna coil rfiid be in Rectangle or a Round shaped as seen in fig.

Open the Serial monitor of Arduino.

EM18 RFID | alselectro

Show the tag near the reader. Further if you calculate the decimal conversion of 69you get Decimal value of E is Thisis the last 8 digits you see on the tag. A dual 5v supply source is used in this demo. Blog Stats 1, hits Follow Blog via Email Me18 your email address to follow this blog and receive notifications of new posts by email.

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