Git initial commit

LICENSE

@@ -0,0 +1,9 @@
+MIT License
+
+Copyright (c) <year> <copyright holders>
+
+Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.

README.md

@@ -0,0 +1,4 @@
+# smart-mobcom
+
+Repository used to setup some kind of a library used for mobile communication.
+Currently bases on SIM7600E-H 4G HAT for Raspberry-Pi.

mobcom.py

@@ -0,0 +1,166 @@
+import logging
+from RPi import GPIO as GPIO
+from serial import Serial
+from time import sleep
+
+class mobile():
+    message_storage_types = ("SM", "ME", "MT", "BM", "SR", "TA")
+    enter_code = b'\x1A'
+
+    def parse_message(message):
+        pass
+
+    def __init__(
+            self, dev="/dev/ttyS0", baud=115200, power_key=31,
+            mode=GPIO.BOARD):
+        self._device = dev
+        self._baud_rate = baud
+        self._power_key = power_key
+        self._retry = 3
+
+        devname = self._device.split("/")[-1]
+        console = logging.StreamHandler()
+        console.setLevel(logging.DEBUG)
+        self._logger = logging.getLogger(f"dev={devname}")
+        self._logger.addHandler(console)
+        self._logger.setLevel(logging.DEBUG)
+
+        self._serial = Serial(self._device, self._baud_rate)
+        self._serial.flushInput()
+        self._is_started = False
+
+        GPIO.setmode(mode)
+
+    def __del__(self):
+        self._serial.close()
+        GPIO.cleanup()
+
+
+    def _at_cmd(self, command, timeout=1):
+        self._serial.write(f'{command}\r\n'.encode())
+        sleep(timeout)
+        rtry = self._retry
+        while not self._serial.inWaiting() and abs(rtry) >= 0:
+            rtry -= 1
+            sleep(0.01)
+        if abs(rtry) < 0:
+            self._logger.warn(
+                f"No Response for cmd '{command}' within {self._retry} retries."
+            )
+            return ''
+        return self._serial.read(self._serial.inWaiting()).decode()
+
+    def set_retry(self, retry):
+        if retry == 0:
+            self._logger.warn(
+                "Retry must not be 0! Setting to default (3)."
+            )
+            retry = 3
+        self._retry = retry
+
+    def get_retry(self):
+        return self._retry
+
+
+    def start_device(self):
+        GPIO.setwarnings(False)
+        GPIO.setup(self._power_key,GPIO.OUT)
+        self._logger.info(
+            f"Startup SIM device on {self._device} in progress..."
+        )
+        GPIO.output(self._power_key,GPIO.HIGH)
+        sleep(5)
+        GPIO.output(self._power_key,GPIO.LOW)
+        sleep(20)
+        self._serial.flushInput()
+        self._is_started = True
+        self._logger.info(f"Startup SIM device on {self._device} is done.")
+
+    def stop_device(self):
+        self._logger.info(
+            f"Stopping SIM device on {self._device} in progress..."
+        )
+        GPIO.output(self._power_key,GPIO.HIGH)
+        sleep(5)
+        GPIO.output(self._power_key,GPIO.LOW)
+        sleep(20)
+        self._is_started = False
+        self._logger.info(f"Stopping SIM device on {self._device} is done.")
+
+
+    def set_message_storage(self, storage_types):
+        if len(storage_types) > 3 or any(
+            storage_type not in mobile.message_storage_types
+            for storage_type in storage_types
+        ):
+            storage_types = ["SM","SM","SM"]
+            self._logger.error(
+                "Only up to 3 valid message storages "
+                f"({','.join(mobile.message_storage_types)})"
+                "are allowed! "
+                f"Reset to default: {storage_types}"
+            )
+        storage_types = ",".join(
+            f'\"{storage}\"'
+            for storage in storage_types
+        )
+        atcmd = f"AT+CPMS={storage_types}"
+        self._logger.debug(f"Setup message storage type: {atcmd}")
+        response = self._at_cmd(atcmd)
+        self._logger.debug(f"Response message storage type: {response}")
+
+        if 'OK:' in response:
+            self._logger.info("Setup message storages successfully.")
+        else:
+            self._logger.warn(f"Cannot setup message storages: {atcmd}")
+
+    def send_sms(self, phone_number, message):
+        self._logger.info(f"Sending SMS via {self._device} in progress...")
+
+        atcmd = "AT+CMGF=1"
+        self._logger.debug(f"Setup TEXT mode: {atcmd}")
+        response = self._at_cmd(atcmd)
+        self._logger.debug(f"Response TEXT mode: {response}")
+
+        atcmd = f"AT+CMGS=\"{phone_number}\""
+        self._logger.debug(f"Setup message target: {atcmd}")
+        response = self._at_cmd(atcmd)
+        self._logger.debug(f"Response message targeting: {response}")
+        if ">" in response:
+            self._logger.info(f"Sending message: {message}")
+            self._serial.write(message.encode())
+
+            self._logger.debug(f"Sending 'enter' for execution: {mobile.enter_code}")
+            self._serial.write(mobile.enter_code)
+
+            self._logger.debug("Awaiting confirmation...")
+            response = self._at_cmd('', 20)
+            self._logger.debug(f"Response message awaited: {response}")
+
+            if "OK" in response:
+                self._logger.info("Success! Message was sent.")
+            else:
+                self._logger.warn("Warning! Message sending failed.")
+        else:
+            self._logger.warn(f"Cannot target message target: {atcmd}")
+
+        self._logger.info(f"Sending SMS via {self._device} is done.")
+
+    def receive_sms(self, index=1):
+        self._logger.info(f"Receiving SMS via {self._device} in progress...")
+
+        atcmd = "AT+CMGF=1"
+        self._logger.debug(f"Setup TEXT mode: {atcmd}")
+        response = self._at_cmd(atcmd)
+        self._logger.debug(f"Response TEXT mode: {response}")
+
+        atcmd = f"AT+CMGR={index}"
+        self._logger.debug(f"Receive message: {atcmd}")
+        response = self._at_cmd(atcmd)
+        self._logger.debug(f"Response receiving message: {response}")
+
+        if "+CMGR:" not in response:
+            self._logger.warn("Warning! Message receiving failed.")
+            return response
+        self._logger.info("Success! Message was received.")
+        return response