Add hw version echo and led control.

Author: whywilson

script/pn532_cli_unit.py

@@ -21,7 +21,7 @@
 from pathlib import Path
 from platform import uname
 from datetime import datetime
-from pn532_enum import MfcKeyType, MifareCommand, PN532KillerMode, PN532KillerTagType
+from pn532_enum import MfcKeyType, MifareCommand, PN532KillerMode, PN532KillerTagType, Status
 
 from pn532_utils import CLITree
 
@@ -123,6 +123,7 @@ def check_tools():
 
 root = CLITree(root=True)
 hw = root.subgroup("hw", "Hardware-related commands")
+hw_led = hw.subgroup("led", "LED control commands")
 hw_mode = hw.subgroup("mode", "Mode-related commands")
 hf = root.subgroup("hf", "High-frequency commands")
 hf_14a = hf.subgroup("14a", "ISO 14443-A commands")
@@ -1342,6 +1343,38 @@ def on_exec(self, args: argparse.Namespace):
             print("Failed to get firmware version")
 
 
+@hw_led.command("on")
+class HWLedOn(DeviceRequiredUnit):
+    def args_parser(self) -> ArgumentParserNoExit:
+        parser = ArgumentParserNoExit()
+        parser.description = "Turn on PN532Killer LED"
+        return parser
+
+    def on_exec(self, args: argparse.Namespace):
+        if self.device_com.get_device_name() != "PN532Killer":
+            print("LED control is only supported on PN532Killer.")
+            return
+        resp = self.cmd.led_on()
+        ok = resp.parsed if hasattr(resp, "parsed") else (resp.status == Status.SUCCESS)
+        print(f"LED on: {'Success' if ok else 'Fail'}")
+
+
+@hw_led.command("off")
+class HWLedOff(DeviceRequiredUnit):
+    def args_parser(self) -> ArgumentParserNoExit:
+        parser = ArgumentParserNoExit()
+        parser.description = "Turn off PN532Killer LED"
+        return parser
+
+    def on_exec(self, args: argparse.Namespace):
+        if self.device_com.get_device_name() != "PN532Killer":
+            print("LED control is only supported on PN532Killer.")
+            return
+        resp = self.cmd.led_off()
+        ok = resp.parsed if hasattr(resp, "parsed") else (resp.status == Status.SUCCESS)
+        print(f"LED off: {'Success' if ok else 'Fail'}")
+
+
 @hf_sniff.command("setuid")
 class HfSniffSetUid(DeviceRequiredUnit):
     def args_parser(self) -> ArgumentParserNoExit:

script/pn532_cmd.py

@@ -571,7 +571,28 @@ def get_firmware_version(self):
         resp = self.device.send_cmd_sync(
             Command.GetFirmwareVersion, None, Status.SUCCESS, 1
         )
-        resp.parsed = f"Ver.{resp.data.hex()}"
+        version_hex = resp.data.hex()
+        resp.parsed = f"Ver.{version_hex}"
+
+        # PN532Killer encodes the last three bytes as YY MM DD; surface a friendlier date string.
+        if len(resp.data) >= 4 and self.device.get_device_name() == "PN532Killer":
+            ic = resp.data[0]
+            year, month, day = resp.data[1:4]
+            resp.parsed = f"Ver.{version_hex} (IC 0x{ic:02X}, Date {year:02d}-{month:02d}-{day:02d})"
+        return resp
+
+    def led_on(self):
+        if self.device.get_device_name() != "PN532Killer":
+            raise ValueError("LED control is only supported on PN532Killer")
+        resp = self.device.send_cmd_sync(Command.WriteGPIO, b"\x00\x01")
+        resp.parsed = resp.status == Status.SUCCESS
+        return resp
+
+    def led_off(self):
+        if self.device.get_device_name() != "PN532Killer":
+            raise ValueError("LED control is only supported on PN532Killer")
+        resp = self.device.send_cmd_sync(Command.WriteGPIO, b"\x00\x00")
+        resp.parsed = resp.status == Status.SUCCESS
         return resp
 
     @expect_response(Status.SUCCESS)

script/pn532_enum.py

@@ -74,6 +74,8 @@ class Pn532KillerCommand(enum.IntEnum):
     "HWModeReader",
     "HWModeSniffer",
     "HWModeEmulator",
+    "HWLedOn",
+    "HWLedOff",
     "HF15Scan",
     "HF15Info",
     "HF15Rdbl",