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RFID: What's happening in microcontroller?

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mutevaggil

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hi all. i wanna ask a question.

in a RFID reader, a microntroller is used in general. So Why?

i mean, what is the missions of a microcontroller in a RFID reader?

what components in a mc are used for what? (ADC,PWM,USART etc...)?

maybe, to most of you, it is a silly question but i need to learn.

thanks in advance.

best regards.
 

Microcontrollers are use to generate the wake-up signal and decode the responce from the RFID !.
 

normaly they are used the USART part of microcontroller to detect signal, and details
 

OK. The RFID card is not having a power source so it is using the power from the transmitter that is radiated to the RFID card. They use a special modulation for this. First they send a burst of signal to wakeup the card and then they modulate the Transmitted signal so the RFID card can receive it. When the RFID card is addressed correctly it will send an responce signal to the Transmitter which in this case is switched in receivce mode. Clear ?.
 

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    mutevaggil

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