I'm researching about RFID Technology as i'm trying to build a RFID Reader using an Arduino and/or Raspberry Pi which i been trying to do so for a month however with no avail. So i been reading up as much as i can however i can't seem to find a proper answer.
There're 3 frequency ranges 125KHz (LF), 13.56MHz (HF) and 900MHz (UHF) for RFID Tags Than there're different readers but for example 'Grove - 125KHz RFID Reader'
- The reader mentioned about 125KHz, so does that mean it can only read 125KHz Tags? Or can it also read the higher frequencies?
- What if i purchase a 900MHz(UHF) Reader, will that read only 900MHz tags? or all the others?
- SAlso i'm confused about RFID and Mifare. All the boards such as 'RFID-RC522' and 'PN532' boards says to read RFID but their codes only read MiFares