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Not the length of the value, the rfid reading range. For example you have to make the RC522 touch to the NFC to scan, but it can read it from about 2 cm distance in miguelbalboa's code. If you can fix this, your code will be perfect bro.
Thanks the system works. But having a hard time reading the ID cards and NFC tags, not much prob with the key tags. Any way to increase the range?
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