include support for Huawei Modem E372 (#21)

* include support for Huawei Modem E372 and actually works with Ubuntu and Raspbian10

* add support in class for E372 modem

Co-authored-by: Hector Mendez <[email protected]>

Author: HectorMendez

Hologram/Network/Cellular.py

@@ -11,7 +11,7 @@
 from Hologram.Event import Event
 from Exceptions.HologramError import NetworkError
 from Hologram.Network.Route import Route
-from Hologram.Network.Modem import Modem, E303, MS2131, Nova_U201, NovaM, DriverLoader
+from Hologram.Network.Modem import Modem, E303, MS2131, E372, Nova_U201, NovaM, DriverLoader
 from Hologram.Network import Network, NetworkScope
 import time
 from serial.tools import list_ports
@@ -30,6 +30,7 @@ class Cellular(Network):
     _modemHandlers = {
         'e303': E303.E303,
         'ms2131': MS2131.MS2131,
+        'e372': E372.E372,
         'nova': Nova_U201.Nova_U201,
         'novam': NovaM.NovaM,
         '': Modem

Hologram/Network/Modem/E372.py

@@ -0,0 +1,45 @@
+# E372.py - Based on Hologram Python SDK Huawei MS2131 modem interface
+#
+#
+#
+#
+#
+# LICENSE: Distributed under the terms of the MIT License
+#
+
+from Hologram.Network.Modem import Modem
+from Hologram.Event import Event
+
+DEFAULT_E372_TIMEOUT = 200
+
+class E372(Modem):
+
+    usb_ids = [('12d1', '14c6')]
+
+    def __init__(self, device_name=None, baud_rate='9600',
+                 chatscript_file=None, event=Event()):
+
+        super().__init__(device_name=device_name, baud_rate=baud_rate,
+                                     chatscript_file=chatscript_file, event=event)
+
+    def connect(self, timeout = DEFAULT_E372_TIMEOUT):
+        return super().connect(timeout)
+
+    def init_serial_commands(self):
+        self.command("E0") #echo off
+        self.command("+CMEE", "2") #set verbose error codes
+        self.command("+CPIN?")
+        self.command("+CTZU", "1") #time/zone sync
+        self.command("+CTZR", "1") #time/zone URC
+        #self.command("+CPIN", "") #set SIM PIN
+        self.command("+CPMS", "\"ME\",\"ME\",\"ME\"")
+        self.set_sms_configs()
+        self.command("+CREG", "2")
+        self.command("+CGREG", "2")
+
+    def disable_at_sockets_mode(self):
+        pass
+
+    @property
+    def iccid(self):
+        return self._basic_command('^ICCID?').lstrip('^ICCID: ')[:-1]

Hologram/Network/Modem/__init__.py

@@ -1,4 +1,4 @@
-__all__ = ['Modem', 'MockModem', 'MS2131', 'Nova', 'E303']
+__all__ = ['Modem', 'MockModem', 'MS2131', 'Nova', 'E303', 'E372']
 
 from .IModem import IModem
 from .Modem import Modem