start

config.py

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+GNSS_PORT = '/dev/ttyAMA0'   # UART порт GNSS модуля
+GNSS_BAUD = 9600
+GNSS_TIMEOUT = 1

gnss_core.py

@@ -0,0 +1,58 @@
+import serial
+import pynmea2
+import time
+from .gnss_utils import current_utc_time
+
+class GNSSModule:
+    """
+    Основной класс для работы с GNSS на Raspberry Pi.
+    Поддерживает GPS, GLONASS, BeiDou через NMEA-формат.
+    """
+    def __init__(self, port='/dev/ttyAMA0', baudrate=9600, timeout=1):
+        self.port = port
+        self.baudrate = baudrate
+        self.timeout = timeout
+        self.serial_conn = None
+        self.last_position = None
+
+    def connect(self):
+        """Подключение к GNSS модулю"""
+        try:
+            self.serial_conn = serial.Serial(
+                port=self.port,
+                baudrate=self.baudrate,
+                timeout=self.timeout
+            )
+            print(f"GNSS подключен на {self.port} @ {self.baudrate} бод")
+        except Exception as e:
+            print(f"Ошибка подключения GNSS: {e}")
+            raise e
+
+    def read_position(self):
+        """
+        Считывает NMEA строку, парсит координаты.
+        Возвращает словарь с lat, lon, alt, timestamp
+        """
+        if self.serial_conn is None or not self.serial_conn.is_open:
+            raise ConnectionError("GNSS модуль не подключен")
+
+        try:
+            line = self.serial_conn.readline().decode('ascii', errors='replace')
+            if line.startswith('$G'):
+                msg = pynmea2.parse(line)
+                if isinstance(msg, pynmea2.GGA):
+                    self.last_position = {
+                        'lat': msg.latitude,
+                        'lon': msg.longitude,
+                        'alt': msg.altitude,
+                        'timestamp': current_utc_time()
+                    }
+                    return self.last_position
+        except pynmea2.ParseError:
+            pass
+        return None
+
+    def close(self):
+        if self.serial_conn and self.serial_conn.is_open:
+            self.serial_conn.close()
+            print("GNSS соединение закрыто")

gnss_utils.py

@@ -0,0 +1,5 @@
+from datetime import datetime, timezone
+
+def current_utc_time():
+    """Возвращает текущее UTC-время, для синхронизации с RTC"""
+    return datetime.now(timezone.utc).isoformat()

poetry.lock

@@ -0,0 +1,60 @@
+# This file is automatically @generated by Poetry 2.2.1 and should not be changed by hand.
+
+[[package]]
+name = "pynmea2"
+version = "1.19.0"
+description = "Python library for the NMEA 0183 protcol"
+optional = false
+python-versions = "*"
+groups = ["main"]
+files = [
+    {file = "pynmea2-1.19.0-py3-none-any.whl", hash = "sha256:5138558b4fb5daa587b2c17de99eb43df0297039de1c98010c996624abfb00eb"},
+    {file = "pynmea2-1.19.0.tar.gz", hash = "sha256:1daa79b93279f887d1c235e5cc5c79e32644564138ce46989ab0f4a2fc970d7c"},
+]
+
+[[package]]
+name = "pyserial"
+version = "3.5"
+description = "Python Serial Port Extension"
+optional = false
+python-versions = "*"
+groups = ["main"]
+files = [
+    {file = "pyserial-3.5-py2.py3-none-any.whl", hash = "sha256:c4451db6ba391ca6ca299fb3ec7bae67a5c55dde170964c7a14ceefec02f2cf0"},
+    {file = "pyserial-3.5.tar.gz", hash = "sha256:3c77e014170dfffbd816e6ffc205e9842efb10be9f58ec16d3e8675b4925cddb"},
+]
+
+[package.extras]
+cp2110 = ["hidapi"]
+
+[[package]]
+name = "python-dateutil"
+version = "2.9.0.post0"
+description = "Extensions to the standard Python datetime module"
+optional = false
+python-versions = "!=3.0.*,!=3.1.*,!=3.2.*,>=2.7"
+groups = ["main"]
+files = [
+    {file = "python-dateutil-2.9.0.post0.tar.gz", hash = "sha256:37dd54208da7e1cd875388217d5e00ebd4179249f90fb72437e91a35459a0ad3"},
+    {file = "python_dateutil-2.9.0.post0-py2.py3-none-any.whl", hash = "sha256:a8b2bc7bffae282281c8140a97d3aa9c14da0b136dfe83f850eea9a5f7470427"},
+]
+
+[package.dependencies]
+six = ">=1.5"
+
+[[package]]
+name = "six"
+version = "1.17.0"
+description = "Python 2 and 3 compatibility utilities"
+optional = false
+python-versions = "!=3.0.*,!=3.1.*,!=3.2.*,>=2.7"
+groups = ["main"]
+files = [
+    {file = "six-1.17.0-py2.py3-none-any.whl", hash = "sha256:4721f391ed90541fddacab5acf947aa0d3dc7d27b2e1e8eda2be8970586c3274"},
+    {file = "six-1.17.0.tar.gz", hash = "sha256:ff70335d468e7eb6ec65b95b99d3a2836546063f63acc5171de367e834932a81"},
+]
+
+[metadata]
+lock-version = "2.1"
+python-versions = ">=3.13"
+content-hash = "17f37c7813d145c3fdc878cf826ad205336172cfa15e2f59a0b82a304374da2a"

pyproject.toml

@@ -0,0 +1,19 @@
+[project]
+name = "gnss"
+version = "0.0.1"
+description = ""
+authors = [
+    {name = "s.galanskiy",email = "s.galanskiy@gossys.dev"}
+]
+readme = "README.md"
+requires-python = ">=3.13"
+dependencies = [
+    "pyserial (>=3.5,<4.0)",
+    "pynmea2 (>=1.19.0,<2.0.0)",
+    "python-dateutil (>=2.9.0.post0,<3.0.0)"
+]
+
+
+[build-system]
+requires = ["poetry-core>=2.0.0,<3.0.0"]
+build-backend = "poetry.core.masonry.api"