code: def read_byte(self, addr):
          
          if addr < 0 or addr > 127:
              raise ValueError("invalid byte address")
          log.debug("read byte at address {0} ({0:02X}h)".format(addr))
          cmd = "\x01" + chr(addr) + "\x00" + self.uid
          return self.transceive(cmd)[-1]
docs: Read a single byte from static memory area (blocks 0-14).