title: MFRC522 and specific sector/block reading
body: <p>I am creating a game using the Mifare tags embedded in 8 different playing pieces. I will be using an Arduino NANO with the MFRC522 (library <a href="https://github.com/miguelbalboa/rfid" rel="nofollow">https://github.com/miguelbalboa/rfid</a>) to do the actual reading of the tags, and am using an ER301 reader/writer (with eReader software) to assign playing piece numbers to them.  I will be creating multiples of each piece to head off any issues I would have with loss due to breakage or theft (due to these being rather unique playing pieces).  Since there will be 8 different pieces, and 4 copies of each piece, that would be 32 UIDs to keep up with.  I would rather assign a different number to each of pieces, and the same number of each piece to its duplicates - so only 8 numbers to keep up with.</p>
  
  <p>My question is - how do I read a certain block and sector with the MFRC522?</p>
  
  <p>Specifically, sector 2, block 8 - because this is where the Hex equivalent of the playing piece number shows up (when it is assigned as a Product Name with the eReader software and the ER301 writer).  I understand using the library for the MFRC522 to read the UID, but this is a bit more in-depth than my understanding.</p>
  
  <p>I have written several Sketches for the Arduino, but this is my foray into the world of RFID, and is quite a bit more extensive than my previous Arduino projects.  Once I can read the specific sector &amp; block, the Arduino NANO will output a binary representation (on 4 of the digital I/Os) of which playing piece was placed.</p>