To get this to work, you also need RFID cards with same working frequency (included in packet from ebay). I got it on Ebay almost for free with 2 RFID cards included. Source: For that I used Mifare RC522 RFID reader from NXP. Unlike a barcode, the tag does not necessarily need to be within line of sight of the reader, and may be embedded in the tracked object. Battery powered tags may operate at hundreds of meters. Others use a local power source such as a battery, or else have no battery but collect energy from the interrogating EM field, and then act as a passive transponder to emit microwaves or UHF radio waves (i.e., electromagnetic radiation at high frequencies). Some tags are powered by and read at short ranges (a few meters) via magnetic fields ( electromagnetic induction). The tags contain electronically stored information. Radio-frequency identification (RFID) is the wireless non-contact use of radio-frequency electromagnetic fields to transfer data, for the purposes of automatically identifying and tracking tags attached to objects. How to convert Ascii to Hex ? Like if I have "12AF" it should be converted to 0x12 and 0xAF.In this library I’m talking about RFID ( Radio- Frequency IDentification). UART1_Write_Text ( "Swipe a card \r \n" ) I = 0 memset (uartBuffer, ' \0', sizeof (uartBuffer ) ) Sbit LED5_Direction at TRISD4_bit unsigned char tag1 = else UART1_Write_Text ( "Tag doesn't match \r \n" ) In mikroC PRO how to check if received data is STX and ETX ?
Are they Start of text and end of text ? Here it is mentioned that they are STX and ETX. 8 it is mentioned as UART data ?Īlso in the tag given out by the card there in the beginning and in the end. If 1400508931FC is tag then what is the 0005278001 number printed on card ? And why in the document page no. How does 0005278001 translate to tag shown above ? So, according to page 8 of the attached documentĠ005278001 is UART data and 080,35121 is Wiegand data.
This I found by connecting the card reader to PC and watching the data on Termite Serial terminal software. So, 1400508931FC repeats if card is placed near reader. I am doing a project of RFID card reader with PIC18F45K22 4 MHz external crystal.
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