switched to gitea

2026-05-20 10:29:00 +02:00
commit dc442f29bc
6 changed files with 599 additions and 0 deletions
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+# Auto detect text files and perform LF normalization
+* text=auto
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+# Byte-compiled / optimized / DLL files
+__pycache__/
+*.py[codz]
+*$py.class
+
+# C extensions
+*.so
+
+.idea/
+
+# Distribution / packaging
+.Python
+build/
+develop-eggs/
+dist/
+downloads/
+eggs/
+.eggs/
+lib/
+lib64/
+parts/
+sdist/
+var/
+wheels/
+share/python-wheels/
+*.egg-info/
+.installed.cfg
+*.egg
+MANIFEST
+
+# PyInstaller
+#   Usually these files are written by a python script from a template
+#   before PyInstaller builds the exe, so as to inject date/other infos into it.
+*.manifest
+*.spec
+
+# Installer logs
+pip-log.txt
+pip-delete-this-directory.txt
+
+# Unit test / coverage reports
+htmlcov/
+.tox/
+.nox/
+.coverage
+.coverage.*
+.cache
+nosetests.xml
+coverage.xml
+*.cover
+*.py.cover
+.hypothesis/
+.pytest_cache/
+cover/
+
+# Translations
+*.mo
+*.pot
+
+# Django stuff:
+*.log
+local_settings.py
+db.sqlite3
+db.sqlite3-journal
+
+# Flask stuff:
+instance/
+.webassets-cache
+
+# Scrapy stuff:
+.scrapy
+
+# Sphinx documentation
+docs/_build/
+
+# PyBuilder
+.pybuilder/
+target/
+
+# Jupyter Notebook
+.ipynb_checkpoints
+
+# IPython
+profile_default/
+ipython_config.py
+
+# pyenv
+#   For a library or package, you might want to ignore these files since the code is
+#   intended to run in multiple environments; otherwise, check them in:
+# .python-version
+
+# pipenv
+#   According to pypa/pipenv#598, it is recommended to include Pipfile.lock in version control.
+#   However, in case of collaboration, if having platform-specific dependencies or dependencies
+#   having no cross-platform support, pipenv may install dependencies that don't work, or not
+#   install all needed dependencies.
+# Pipfile.lock
+
+# UV
+#   Similar to Pipfile.lock, it is generally recommended to include uv.lock in version control.
+#   This is especially recommended for binary packages to ensure reproducibility, and is more
+#   commonly ignored for libraries.
+# uv.lock
+
+# poetry
+#   Similar to Pipfile.lock, it is generally recommended to include poetry.lock in version control.
+#   This is especially recommended for binary packages to ensure reproducibility, and is more
+#   commonly ignored for libraries.
+#   https://python-poetry.org/docs/basic-usage/#commit-your-poetrylock-file-to-version-control
+# poetry.lock
+# poetry.toml
+
+# pdm
+#   Similar to Pipfile.lock, it is generally recommended to include pdm.lock in version control.
+#   pdm recommends including project-wide configuration in pdm.toml, but excluding .pdm-python.
+#   https://pdm-project.org/en/latest/usage/project/#working-with-version-control
+# pdm.lock
+# pdm.toml
+.pdm-python
+.pdm-build/
+
+# pixi
+#   Similar to Pipfile.lock, it is generally recommended to include pixi.lock in version control.
+# pixi.lock
+#   Pixi creates a virtual environment in the .pixi directory, just like venv module creates one
+#   in the .venv directory. It is recommended not to include this directory in version control.
+.pixi
+
+# PEP 582; used by e.g. github.com/David-OConnor/pyflow and github.com/pdm-project/pdm
+__pypackages__/
+
+# Celery stuff
+celerybeat-schedule
+celerybeat.pid
+
+# Redis
+*.rdb
+*.aof
+*.pid
+
+# RabbitMQ
+mnesia/
+rabbitmq/
+rabbitmq-data/
+
+# ActiveMQ
+activemq-data/
+
+# SageMath parsed files
+*.sage.py
+
+# Environments
+.env
+.envrc
+.venv
+env/
+venv/
+ENV/
+env.bak/
+venv.bak/
+
+# Spyder project settings
+.spyderproject
+.spyproject
+
+# Rope project settings
+.ropeproject
+
+# mkdocs documentation
+/site
+
+# mypy
+.mypy_cache/
+.dmypy.json
+dmypy.json
+
+# Pyre type checker
+.pyre/
+
+# pytype static type analyzer
+.pytype/
+
+# Cython debug symbols
+cython_debug/
+
+# PyCharm
+#   JetBrains specific template is maintained in a separate JetBrains.gitignore that can
+#   be found at https://github.com/github/gitignore/blob/main/Global/JetBrains.gitignore
+#   and can be added to the global gitignore or merged into this file.  For a more nuclear
+#   option (not recommended) you can uncomment the following to ignore the entire idea folder.
+# .idea/
+
+# Abstra
+#   Abstra is an AI-powered process automation framework.
+#   Ignore directories containing user credentials, local state, and settings.
+#   Learn more at https://abstra.io/docs
+.abstra/
+
+# Visual Studio Code
+#   Visual Studio Code specific template is maintained in a separate VisualStudioCode.gitignore 
+#   that can be found at https://github.com/github/gitignore/blob/main/Global/VisualStudioCode.gitignore
+#   and can be added to the global gitignore or merged into this file. However, if you prefer, 
+#   you could uncomment the following to ignore the entire vscode folder
+# .vscode/
+
+# Ruff stuff:
+.ruff_cache/
+
+# PyPI configuration file
+.pypirc
+
+# Marimo
+marimo/_static/
+marimo/_lsp/
+__marimo__/
+
+# Streamlit
+.streamlit/secrets.toml
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+# Über das Projekt
+Dieses Repository beinhält ein Backend für einen Asia Shop, welcher Umgebungsdaten sammelt, um die Bescuherzahlen zu berechnen.
+
+# Vorbereitung
+## Anschlüsse
+Benötigt wird der BME680 und Annährungsensor (RCML-0516).
+1. V3V und GND wie gewohnt bei beiden Sensoren anschließen
+2. BME680 SCK wird mit SCL1 verbunden, SDI mit SDA1
+3. RCML OUT geht nur unter GPIO V3V
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+#!/usr/bin/env python
+
+import time
+
+import bme680
+
+print("""bme680_default.py - Displays temperature, pressure, humidity, and gas.
+
+Press Ctrl+C to exit!
+
+""")
+
+try:
+    sensor = bme680.BME680(bme680.I2C_ADDR_PRIMARY)
+except (RuntimeError, IOError):
+    sensor = bme680.BME680(bme680.I2C_ADDR_SECONDARY)
+
+# These calibration data can safely be commented
+# out, if desired.
+
+print('Calibration data:')
+for name in dir(sensor.calibration_data):
+
+    if not name.startswith('_'):
+        value = getattr(sensor.calibration_data, name)
+
+        if isinstance(value, int):
+            print('{}: {}'.format(name, value))
+
+# These oversampling settings can be tweaked to
+# change the balance between accuracy and noise in
+# the data.
+
+sensor.set_humidity_oversample(bme680.OS_2X)
+sensor.set_pressure_oversample(bme680.OS_4X)
+sensor.set_temperature_oversample(bme680.OS_8X)
+sensor.set_filter(bme680.FILTER_SIZE_3)
+sensor.set_gas_status(bme680.ENABLE_GAS_MEAS)
+
+print('\n\nInitial reading:')
+for name in dir(sensor.data):
+    value = getattr(sensor.data, name)
+
+    if not name.startswith('_'):
+        print('{}: {}'.format(name, value))
+
+sensor.set_gas_heater_temperature(320)
+sensor.set_gas_heater_duration(150)
+sensor.select_gas_heater_profile(0)
+
+# Up to 10 heater profiles can be configured, each
+# with their own temperature and duration.
+# sensor.set_gas_heater_profile(200, 150, nb_profile=1)
+# sensor.select_gas_heater_profile(1)
+
+print('\n\nPolling:')
+try:
+    while True:
+        if sensor.get_sensor_data():
+            output = '{0:.2f} C,{1:.2f} hPa,{2:.2f} %RH'.format(
+                sensor.data.temperature,
+                sensor.data.pressure,
+                sensor.data.humidity)
+
+            if sensor.data.heat_stable:
+                print('{0},{1} Ohms'.format(
+                    output,
+                    sensor.data.gas_resistance))
+
+            else:
+                print(output)
+
+        time.sleep(1)
+
+except KeyboardInterrupt:
+    pass
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+import sys
+
+import bme680
+import uvicorn
+from fastapi import FastAPI
+import RPi.GPIO as GPIO
+import time
+import threading
+import pymysql
+from fastapi.middleware.cors import CORSMiddleware
+
+
+db_user = 'sensor_user'
+db_password = 'dein_passwort'
+
+# --- Database connection setup ---
+try:
+    # Connect to local MySQL database
+    connection = pymysql.connect(
+        host='localhost',
+        port=3306,
+        user=db_user,
+        password=db_password,
+        database='sensor_db',
+    )
+
+    cursor = connection.cursor()
+    # Create table if it doesn't already exist
+    cursor.execute('''
+                   CREATE TABLE IF NOT EXISTS sensor_data
+                   (
+                       id          INT     NOT NULL AUTO_INCREMENT PRIMARY KEY,
+                       timestamp   TIMESTAMP NOT NULL DEFAULT CURRENT_TIMESTAMP,
+                       motion      BOOLEAN NOT NULL,
+                       temperature FLOAT   NOT NULL,
+                       humidity    FLOAT   NOT NULL,
+                       pressure    FLOAT   NOT NULL,
+                       gas_resistance  FLOAT   NOT NULL
+                   )
+                   ''')
+
+except pymysql.Error as error:
+    print(error)
+    sys.exit(1)
+
+# --- GPIO setup for motion sensor (RCWL-0516) ---
+sensor_pin = 22
+GPIO.setmode(GPIO.BCM)
+GPIO.setup(sensor_pin, GPIO.IN)
+
+# --- Global shared state variables ---
+state = 0
+motion_detected = False  # Shared state
+temperature = 0
+humidity = 0
+pressure = 0
+gas_resistance = 0
+
+# -------------------------------------------------------------
+#  @function proxmity_loop
+#  @description Monitors the motion sensor continuously and updates the shared motion state.
+#  @returns None
+# -------------------------------------------------------------
+def proxmity_loop():
+    global state, motion_detected
+    try:
+        while True:
+            val = GPIO.input(sensor_pin)
+            if val == 1:
+                if state == 0:
+                    print("Motion detected!")
+                    motion_detected = True
+                    state = 1
+            else:
+                if state == 1:
+                    print("Motion stopped!")
+                    motion_detected = False
+                    state = 0
+            time.sleep(0.1)
+    except Exception as e:
+        print(f"Sensor error: {e}")
+    finally:
+        GPIO.cleanup()
+
+
+# -------------------------------------------------------------
+#  @function sensor_loop
+#  @description Reads data from the BME680 sensor (temperature, humidity, pressure, gas resistance)
+#               and updates global variables in regular intervals.
+#  @returns None
+# -------------------------------------------------------------
+def sensor_loop():
+    global temperature, humidity, pressure, gas_resistance
+    bme680sensor = bme680.BME680(bme680.I2C_ADDR_SECONDARY)
+
+    bme680sensor.set_humidity_oversample(bme680.OS_2X)
+    bme680sensor.set_pressure_oversample(bme680.OS_4X)
+    bme680sensor.set_temperature_oversample(bme680.OS_8X)
+    bme680sensor.set_filter(bme680.FILTER_SIZE_3)
+    bme680sensor.set_gas_status(bme680.ENABLE_GAS_MEAS)
+
+    bme680sensor.set_gas_heater_temperature(320)
+    bme680sensor.set_gas_heater_duration(150)
+    bme680sensor.select_gas_heater_profile(0)
+
+    while True:
+        if bme680sensor.get_sensor_data():
+            temperature = bme680sensor.data.temperature
+            pressure = bme680sensor.data.pressure
+            humidity = bme680sensor.data.humidity
+            gas_resistance = bme680sensor.data.gas_resistance
+
+        time.sleep(1)
+
+
+# -------------------------------------------------------------
+#  @function lineare_regression
+#  @description Performs a simple linear regression between x and y values.
+#  @param {list[float]} x - The independent variable values.
+#  @param {list[float]} y - The dependent variable values.
+#  @param {list[float]} [neue_x] - New x-values for prediction (optional).
+#  @returns {list[float]|None} Returns the predicted y-values or None.
+# -------------------------------------------------------------
+def lineare_regression(x, y, neue_x=None):
+    n = len(x)
+
+    x_mean = sum(x) / n
+    y_mean = sum(y) / n
+
+    sum_xy_abweichung = 0
+    sum_x_quadrat_abweichung = 0
+
+    for i in range(n):
+        x_abweichung = x[i] - x_mean
+        y_abweichung = y[i] - y_mean
+
+        sum_xy_abweichung += x_abweichung * y_abweichung
+        sum_x_quadrat_abweichung += x_abweichung * x_abweichung
+
+    m = sum_xy_abweichung / sum_x_quadrat_abweichung if sum_x_quadrat_abweichung != 0 else 0
+    b = y_mean - m * x_mean
+
+
+    vorhersagen = None
+    if neue_x:
+        vorhersagen = [round(m * xi + b, 4) for xi in neue_x]
+
+    return  vorhersagen
+
+
+# -------------------------------------------------------------
+#  @function database_loop
+#  @description Periodically stores the latest sensor readings into the MySQL database.
+#  @returns None
+# -------------------------------------------------------------
+def database_loop():
+    global temperature, humidity, pressure, gas_resistance, motion_detected
+
+    time.sleep(10)
+
+    while True:
+        cursor.execute('INSERT INTO sensor_data(motion, temperature, humidity, pressure, gas_resistance) VALUES (%s, %s, %s, %s, %s) ', (
+            motion_detected, temperature, humidity, pressure, gas_resistance
+        ))
+
+        connection.commit()
+
+        time.sleep(300)
+
+# -------------------------------------------------------------
+#  @function startup_event
+#  @description Initializes background threads for the sensor loops on application startup.
+#  @returns None
+# -------------------------------------------------------------
+app = FastAPI()
+
+@app.on_event("startup")
+def startup_event():
+    sensor_thread = threading.Thread(target=sensor_loop, daemon=True)
+    sensor_thread.start()
+
+    proxmity_thread = threading.Thread(target=proxmity_loop, daemon=True)
+    proxmity_thread.start()
+
+    database_thread = threading.Thread(target=database_loop, daemon=True)
+    database_thread.start()
+    print("Sensor thread started")
+
+# --- CORS configuration (allows cross-origin requests) ---
+app.add_middleware(
+    CORSMiddleware,
+    allow_origins=["*"],
+    allow_credentials=True,
+    allow_methods=["*"],
+    allow_headers=["*"],
+)
+
+# -------------------------------------------------------------
+#  @endpoint GET /
+#  @description Basic test endpoint for server health check.
+#  @returns {object} Returns a simple hello message.
+# -------------------------------------------------------------
+@app.get("/")
+async def root():
+    return {"message": "Hello World"}
+
+
+# -------------------------------------------------------------
+#  @endpoint GET /sensor
+#  @description Returns the latest live sensor readings from global variables.
+#  @returns {object} JSON object containing motion, temperature, humidity, pressure, and gas resistance.
+# -------------------------------------------------------------
+@app.get("/sensor")
+async def sensor():
+    return {
+        "motion": motion_detected,
+        "temperature": temperature,
+        "humidity": humidity,
+        "pressure": pressure,
+        "gas_resistance": gas_resistance
+    }
+
+
+# -------------------------------------------------------------
+#  @endpoint GET /get/all
+#  @description Retrieves all stored sensor data from the database.
+#  @returns {list[object]} List of all sensor data records.
+# -------------------------------------------------------------
+@app.get("/get/all")
+async def get_all():
+    cursor.execute("SELECT * FROM sensor_data")
+    sensor_data = cursor.fetchall()
+
+    better_data = []
+
+    for row in sensor_data:
+        better_data.append({
+            "id": row[0],
+            "timestamp": row[1],
+            "motion": row[2],
+            "temperature": row[3],
+            "humidity": row[4],
+            "pressure": row[5],
+            "gas_resistance": row[6]
+        })
+
+    return better_data
+
+
+# -------------------------------------------------------------
+#  @endpoint GET /get/regression
+#  @description Performs linear regression on predefined sample data (demo endpoint).
+#  @returns {list[float]} Predicted y-values for the sample regression.
+# -------------------------------------------------------------
+@app.get("/get/regression")
+async def getRegression():
+    countGuest = [13, 11, 16, 21, 14, 52, 27, 18]
+    temps = [19.1, 18.0, 17.0, 16.1, 15.1, 23.1, 21.1, 19.9]
+
+    return lineare_regression(countGuest, temps, [0, 60, 120])
+
+
+# -------------------------------------------------------------
+#  @entrypoint
+#  @description Starts the FastAPI app server using Uvicorn.
+# -------------------------------------------------------------
+if __name__ == "__main__":
+    uvicorn.run("main:app", host="0.0.0.0", port=8000, reload=True)
@@ -0,0 +1,26 @@
+import RPi.GPIO as GPIO
+import time
+
+sensor_pin = 22
+
+GPIO.setmode(GPIO.BCM)
+GPIO.setup(sensor_pin, GPIO.IN)
+
+state = 0
+
+try:
+    while True:
+        val = GPIO.input(sensor_pin)
+        if val == 1:
+            #GPIO.output(led_pin, GPIO.HIGH)
+            if state == 0:
+                print("Motion detected!")
+                state = 1
+        else:
+            #GPIO.output(led_pin, GPIO.LOW)
+            if state == 1:
+                print("Motion stopped!")
+                state = 0
+        time.sleep(0.1)
+except KeyboardInterrupt:
+    GPIO.cleanup()