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We purchased a RFID writer and a few readers from a firm. We write a code on the RFID cards using the writer. To write it uses a serial port terminal program called Termite. Encoded data looks something like this ;1234567?

Readers are connected to the PC via USB and display the card data at the cursor location.

I am not certain which sector is data written on.

The firm went bankrupt and closed. Since we have distributed numerous cards based on the design to the students, we don't want to change all the cards.

I am trying to create a reader and writer (separate) as we need more readers for other locations and a writer just in case the previously purchased one goes faulty.

  1. One way to do this would be to connect the existing reader and extract the binary files and load them on the new boards but I am not certain if it will work.

  2. I referred to various tutorials and blogs but couldn't find anything promising. Most of them are simply reading the UID no of the card.

Currently what I have setup is connected the rc522 to stm32f103c8t6 board:

RC522 STM32F103C8T6
SDA A4
SCK A5
MOSI A7
MISO A6
IRQ
GND G
RST B0
3.3V 3.3

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