Added autosend data decoding function

si_autosend_serial.py

@@ -0,0 +1,60 @@
+#!/usr/bin/env python3
+#
+#    Copyright (C)    2019  Per Magnusson <[email protected]>
+#
+#    This program is free software: you can redistribute it and/or modify
+#    it under the terms of the GNU General Public License as published by
+#    the Free Software Foundation, either version 3 of the License, or
+#    (at your option) any later version.
+#
+#    This program is distributed in the hope that it will be useful,
+#    but WITHOUT ANY WARRANTY; without even the implied warranty of
+#    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+#    GNU General Public License for more details.
+#
+#    You should have received a copy of the GNU General Public License
+#    along with this program.  If not, see <http://www.gnu.org/licenses/>.
+"""
+This example reads the station programmed to autosend the data and redirects to UART1 port to be transfered over Meshtastic network
+Sample of read data:
+53|233177|12:14:09
+53|233385|12:14:32
+53|233173|12:14:37
+53|233174|12:14:46
+53|233176|12:14:55
+"""
+
+from sireader2 import SIReader, SIReaderException, SIReaderControl
+import sys
+import serial
+
+
+try:
+    si = SIReader()
+    reader=SIReaderControl(si)
+    print('Connected to station on port ' + si.port)
+except:
+    print('Failed to connect to an SI station on any of the available serial ports.')
+    exit()
+
+
+ser = serial.Serial(
+  port='/dev/ttyS1',
+  baudrate=57600,
+  bytesize=8,
+  parity='N',
+  stopbits=1,
+  timeout=1
+)
+
+while True:    
+    punches=reader.autosend_punch()
+    if len(punches) > 0:
+        message = f"{punches[0]}|{punches[1]}|{punches[2].time().isoformat(timespec='seconds')}\r\n"
+        bmsg=message.encode('utf-8')
+        ser.write(bmsg)
+        print(message)
+
+
+
+

sireader2.py

@@ -1823,13 +1823,39 @@ def poll_punch(self, timeout=0):
                         self._next_offset += SIReader.REC_LEN
 
                 self._next_offset = cur_offset + SIReader.REC_LEN
-            punches.append( (self._decode_cardnr(c[1][SIReader.T_CN:SIReader.T_CN+4]), 
-                             self._decode_time(c[1][SIReader.T_TIME:SIReader.T_TIME+2])) )
-        else:
-            raise SIReaderException('Unexpected command %s received' % hex(byte2int(c[0])))
-
+                punches.append( (self._decode_cardnr(c[1][SIReader.T_CN:SIReader.T_CN+4]), 
+                                 self._decode_time(c[1][SIReader.T_TIME:SIReader.T_TIME+2])) )
+            else:
+                raise SIReaderException('Unexpected command %s received' % hex(byte2int(c[0])))
         return punches
-
+
+    def autosend_punch(self, timeout=0):
+        """Reads autosend punches.
+        @return: (stationnr, cardnr, punchtime)
+        """
+
+        if not self.proto_config['ext_proto']:
+            raise SIReaderException('This command only supports stations in "Extended Protocol" '
+                                    'mode. Switch mode first')
+
+        if not self.proto_config['auto_send']:
+            raise SIReaderException('This command only supports stations in "Autosend" '
+                                    'mode. Switch mode first')
+
+        punches = []
+        while True:
+            try:
+                c = self._read_command(timeout = None)
+            except SIReaderTimeout:
+                break
+
+            if c[0] == SIReader.C_TRANS_REC:
+                punches= (self.get_station_code(),self._decode_cardnr(c[1][SIReader.T_CN:SIReader.T_CN+4]), self._decode_time(c[1][SIReader.T_TIME:SIReader.T_TIME+2]))
+            else:
+            	raise SIReaderException('Unexpected command %s received' % hex(byte2int(c[0])))	
+
+        return punches
+
     def _read_punch(self, offset):
         """Reads a punch from the SI Stations backup memory.
         @param offset: Position in the backup memory to read