diff --git a/README.md b/README.md
index 9f5f904..05bb409 100644
--- a/README.md
+++ b/README.md
@@ -41,9 +41,9 @@ This is a port of [Seeed Studios's PN532 Arduino Library](https://github.com/See
 
 ## Power
 The Raspberry Pi 3.3v regulator does not provide enough current to drive the PN532 chip. 
-If you try to run the PN532 off your Raspberry Pi it will reset randomly and may not respond to commands.
-Instead you will need another power source (3.3v) to power the PN532. Some people have been able to run 
-the PN532 off of the 5V rail of the raspberry pi but this is not the recommended way of powering it.
+If you try to run the PN532 off your Raspberry Pi 3.3v it will reset randomly and may not respond to commands.
+Instead you will need another power source (3.3v or 5v) to power the PN532. It is generally safe to tap into the
+5v pin on the Raspberry Pi so long as your power supply can provide enough power for the PN532 and the pi.
 
 ## I2C Interface
 
diff --git a/pn532pi/interfaces/pn532i2c.py b/pn532pi/interfaces/pn532i2c.py
index 7f0a192..ffd2005 100644
--- a/pn532pi/interfaces/pn532i2c.py
+++ b/pn532pi/interfaces/pn532i2c.py
@@ -2,6 +2,7 @@
 
 from pn532pi.nfc.pn532_log import DMSG
 from quick2wire.i2c import I2CMaster, writing, reading
+import errno
 
 from pn532pi.interfaces.pn532Interface import Pn532Interface, PN532_PREAMBLE, PN532_STARTCODE1, PN532_STARTCODE2, PN532_HOSTTOPN532, \
     PN532_INVALID_FRAME, PN532_POSTAMBLE, PN532_PN532TOHOST, PN532_ACK_WAIT_TIME, PN532_TIMEOUT, \
@@ -154,18 +155,24 @@ def _readAckFrame(self) -> int:
         DMSG('\n')
 
         t = 0
-        while 1:
-            responses = self._wire.transaction(reading(PN532_I2C_ADDRESS, len(PN532_ACK) + 1))
-            data = bytearray(responses[0])
-            if (data[0] & 1):
-              # check first byte --- status
-                break # PN532 is ready
-
+        while t <= PN532_ACK_WAIT_TIME:
+            try:
+                responses = self._wire.transaction(reading(PN532_I2C_ADDRESS, len(PN532_ACK) + 1))
+                data = bytearray(responses[0])
+                if (data[0] & 1):
+                    # check first byte --- status
+                    break # PN532 is ready
+            except IOError as e:
+                # As of Python 3.3 IOError is the same as OSError so we should check the error code
+                if e.errno != errno.EIO:
+                    raise   # Reraise the error   
+                # Otherwise do nothing, sleep and try again
+            
             time.sleep(.001)    # sleep 1 ms
             t+=1
-            if (t > PN532_ACK_WAIT_TIME):
-                DMSG("Time out when waiting for ACK\n")
-                return PN532_TIMEOUT
+        else:
+            DMSG("Time out when waiting for ACK\n")
+            return PN532_TIMEOUT
 
         DMSG("ready at : ")
         DMSG(time.time())
diff --git a/pn532pi/nfc/pn532.py b/pn532pi/nfc/pn532.py
index 9c71c73..1e430ea 100644
--- a/pn532pi/nfc/pn532.py
+++ b/pn532pi/nfc/pn532.py
@@ -4,7 +4,7 @@
     @license  BSD
 
 """
-from typing import List
+from typing import List, NamedTuple
 
 from pn532pi.interfaces.pn532Interface import Pn532Interface, PN532_TIMEOUT
 
@@ -126,6 +126,33 @@
 FELICA_WRITE_MAX_BLOCK_NUM          = 10 # for typical FeliCa card
 FELICA_REQ_SERVICE_MAX_NODE_NUM     = 32
 
+# Support options in FW Version Info
+SUPPORTS_ISO18092 = 0b100
+SUPPORTS_ISO14443_A = 0b010
+SUPPORTS_ISO14443_B = 0b001
+class Pn532FirmwareInfo(NamedTuple):
+    """
+    Information contained in the response to the 
+    GetFirmwareVersion command
+    """
+    ic_version: int
+    fw_major: int
+    fw_minor: int
+    support_opts: int
+    iso18092: bool
+    iso14443_a: bool
+    iso14443_b: bool
+
+    def __str__(self) -> str:
+        all_opts = [('ISO18092', self.iso18092), ('ISO4443-A', self.iso14443_a), 
+                    ('ISO4443-B', self.iso14443_b)]
+        opts = [name for name, supported in all_opts if supported]
+        return (f'Pn532FirmwareInfo(IC Version: {hex(self.ic_version)}, '
+                f'FW Version: {self.fw_major}.{self.fw_minor}, '
+                f'Supports: {opts} ({hex(self.support_opts)}))')
+    
+    def __repr__(self) -> str:
+        return str(self)
 
 class Pn532:
     def __init__(self, interface: Pn532Interface):
@@ -149,6 +176,8 @@ def getFirmwareVersion(self) -> int:
         """
         Checks the firmware version of the PN5xx chip
 
+        See https://www.nxp.com/docs/en/user-guide/141520.pdf page 73
+
         :returns:  The chip's firmware version and ID
         """
         if (self._interface.writeCommand(bytearray([PN532_COMMAND_GETFIRMWAREVERSION]))):
@@ -168,6 +197,20 @@ def getFirmwareVersion(self) -> int:
         # response |= self.pn532_packetbuffer[3]
 
         return int.from_bytes(response, byteorder='big')
+    
+    def getFirmwareInfo(self) -> tuple:
+        """
+        Parse the firmware version info into its separate parts
+        Format: |ic_version[8] | fw_version[8] | fw_revision[8] | support_opts[8]|
+        """
+        firmware_data = self.getFirmwareVersion()
+        opts, fw_min, fw_maj, ic_ver = [(firmware_data >> i) & 0xFF for i in range(0, 32, 8)]
+
+        return Pn532FirmwareInfo(ic_ver, fw_maj, fw_min, opts, 
+                                 bool(opts & SUPPORTS_ISO18092), 
+                                 bool(opts & SUPPORTS_ISO14443_A),
+                                 bool(opts & SUPPORTS_ISO14443_B))
+
 
     def readRegister(self, reg: int) -> int:
         """
diff --git a/setup.py b/setup.py
index f06158e..6b3ad95 100644
--- a/setup.py
+++ b/setup.py
@@ -5,9 +5,9 @@
 
 setuptools.setup(
     name="pn532pi",
-    version="1.6",
+    version="1.7",
     author="gassajor000",
-    author_email="lgassjsg@example.com",
+    author_email="43421414+gassajor000@users.noreply.github.com",
     description="PN532 library for Raspberry Pi",
     long_description=long_description,
     long_description_content_type="text/markdown",