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--- haussteuerung:display_panel [2025/12/27 06:48] – [Updates] dominik
+++ haussteuerung:display_panel [2025/12/27 08:11] (current) – [Service] dominik
@@ Line 9: / Line 9: @@
   * '' sudo raspi-config''
     * I2C Aktivieren
+    * 1Wire aktivieren
     * umstellen von Wayland auf X11
     * Screen Blanking aus !
@@ Line 153: / Line 154: @@
   }
 </code>
-==== Display ====
+===== Display On / Off =====
+Das Display kann über den GPIO Pin 36 vom Raspberry Pi an- und abgeschaltet werden. Das geht über ein einfaches toggeln. Am Ende macht das Python Script (gestartet als Service) aber noch einiges mehr... <code python>
-  * Venv einrichten
+import RPi.GPIO as GPIO
-    * ''sudo apt -y update && sudo apt-get install -y build-essential cmake make gcc pkg-config python3-dev python3-virtualenv libsystemd-dev libopenblas-dev''
-    * ''cd ~ && mkdir -p DisplayOnOff && cd DisplayOnOff ''
-    * ''python -m venv . && source bin/activate''
-    * ''pip3 install %%--%%upgrade pip && pip3 install RPi.GPIO pynput smbus paho-mqtt psutil''
-  * Compile VL53 Lib ...
-    * ''sudo apt-get install build-essential python-dev''
-    * ''cd ~''
-    * ''git clone https://github.com/pimoroni/VL53L0X_rasp_python.git''
-    * ''cd VL53L0X-python''
-    * ''make''
-    * VL53L0X.py in den Scriptordner kopieren ...
-  * Tests starten ...
-==== Tests ====
-=== VL ===
-===== Motion Detect =====
-  * Sensor : VL53L0X
-  * Altes Script \\ <code Motiondetect.py>import sys
 import time
-import VL53L0X
-import os
-import subprocess
-import RPi.GPIO as GPIO
-from pynput import mouse
-def on_move(x, y):
+# GPIO-Setup (BOARD-Modus für physische Pin-Nummern)
-    global Display_Last_Action
+GPIO.setmode(GPIO.BOARD)
-    print('Pointer moved to {0}'.format((x, y)))
+GPIO.setwarnings(False)
-    sys.stdout.flush()
-    Display_Last_Action = time.time()
-    print("Time %d" % (Display_Last_Action))
-def on_click(x, y, button, pressed):
+# Pin 36 (GPIO 16) für Display ON/OFF
-    global Display_Last_Action
+GPIO.setup(36, GPIO.OUT)
-    print('{0} at {1}'.format('Pressed' if pressed else 'Released', (x, y)))
-    sys.stdout.flush()
-    Display_Last_Action = time.time()
-    print("Time %d" % (Display_Last_Action))
-def on_scroll(x, y, dx, dy):
-    global Display_Last_Action
-    print('Scrolled {0} at {1}'.format('down' if dy < 0 else 'up', (x, y)))
-    sys.stdout.flush()
-    Display_Last_Action = time.time()
-    print("Time %d" % (Display_Last_Action))
 def toggleOnOff():
@@ Line 211: / Line 170: @@
     time.sleep(0.4)
     GPIO.output(36, GPIO.LOW)
-    print("Toggle Switch ....")
+    print("Display toggled!")
-    sys.stdout.flush()
-listener = mouse.Listener(
-    on_move=on_move,
-    on_click=on_click,
-    on_scroll=on_scroll)
-listener.start()
-# Last Time Event happend on Display
+# Toggle ausführen
-Display_Last_Action = time.time()
+toggleOnOff()
-Display_State       = True
+</code>
-Display_Timeout_Sec = 180
-# RPi.GPIO Layout verwenden (wie Pin-Nummern)
+==== Funktionen ====
-GPIO.setmode(GPIO.BOARD)
+  * Display an / aus
-# RuntimeWarning: This channel is already in use, continuing anyway.  Use GPIO.setwarnings(False) to disable warnings.
+  * Raspberry in HA mittels Autodiscover anmelden
-GPIO.setwarnings(False)
+  * Schalten des Displays über HA
+  * Melden von Bewegung an HA (MQTT)
+  * einfaches Systemn Monitoring (vor allem Temperatur)
-# Pin 36 (GPIO 16) auf Output setzen -> Display ON / OFF
+==== Venv einrichten ====
-GPIO.setup(36, GPIO.OUT)
+  * ''sudo apt -y update && sudo apt-get install -y build-essential cmake make gcc pkg-config python3-dev python3-virtualenv libsystemd-dev libopenblas-dev python3-setuptools''
-# Pin 38 (GPIO 20) auf Output setzen -> Brightness +
+  * ''cd ~ && mkdir -p DisplayHA && cd DisplayHA''
-GPIO.setup(38, GPIO.OUT)
+  * ''python -m venv . && source bin/activate''
-# Pin 40 (GPIO 21) auf Output setzen -> Brightness -
+  * ''pip3 install %%--%%upgrade pip && pip3 install RPi.GPIO pynput smbus paho-mqtt psutil setuptools''
-GPIO.setup(40, GPIO.OUT)
-# Create a VL53L0X object
+  * Compile VL53 Lib ...
-tof = VL53L0X.VL53L0X(i2c_bus=1,i2c_address=0x29)
+    * ''sudo apt-get install build-essential python-dev''
-tof.open()
+    * ''cd ~ && git clone https://github.com/pimoroni/VL53L0X_rasp_python.git && cd VL53L0X_rasp_python''
-tof.start_ranging(VL53L0X.Vl53l0xAccuracyMode.BETTER)
+    * ''pip install .''
+    * VL53L0X.py in den Scriptordner kopieren ... \\ ''cp ~/VL53L0X_rasp_python/python/VL53L0X.py ~/DisplayHA/''
+  * Tests starten ...
-while 1:
-    # Distanz vom VL53L0X Sensor messen
-    distance = tof.get_distance()
-    #print("%d mm, %d cm" % (distance, (distance/10)))
-    # Display ggf. abschalten
-    if time.time()-Display_Last_Action >= Display_Timeout_Sec:
-        if Display_State == True:
-            #subprocess.call("DISPLAY=:0 xset dpms force off", shell=True)
-            toggleOnOff()
-            Display_State = False
-            print("Display wird abgeschaltet ...")
-            sys.stdout.flush()
-    # Abstand vom Sensor pruefen
-    if distance < 900:
-        print("DETECTED, %d cm , %d sec" % (distance/10, time.time()-Display_Last_Action ))
-        sys.stdout.flush()
-        Display_Last_Action = time.time()
-        print("Time %d" % (Display_Last_Action))
-    # Display ggf. wieder einschalten
+===== Motion Detect =====
-    if time.time()-Display_Last_Action < Display_Timeout_Sec:
+  * Sensor : VL53L0X
-        if Display_State == False:
-            #subprocess.call("DISPLAY=:0 xset dpms force on", shell=True)
-            toggleOnOff()
-            Display_State = True
-            print("Display wird eingeschaltet ...")
-            sys.stdout.flush()
-        # Display Einschalten
+==== Service ====
-        #os.system('DISPLAY=:0 xdotool key "shift"')
+  * Aktivieren \\ ''sudo systemctl enable display.service'' \\ ''sudo systemctl daemon-reload'' \\ ''sudo systemctl start display.service''
-        ###subprocess.call("DISPLAY=:0 xset s reset", shell=True)
+  * Log ansehen \\ ''journalctl -u display.service -f''
-        #subprocess.call("DISPLAY=:0 xset dpms force on", shell=True)
+  * ''sudo nano /lib/systemd/system/display.service'' \\ <code display.service>
-        #subprocess.call("DISPLAY=:0 xset dpms 120 120 120", shell=True)
+[Unit]
+Description=Smart Display Controller (venv/User Mode)
+# Wir warten, bis das Netzwerk und die Grafikoberfläche da sind
+After=network-online.target graphical.target
+Wants=network-online.target
-    time.sleep(0.1)
+[Service]
+# --- User Context ---
+User=pi
+Group=pi
-tof.stop_ranging()
+# --- Arbeitsverzeichnis ---
-tof.close()
+# Setzt das Verzeichnis, damit relative Pfade funktionieren
-</code>
+WorkingDirectory=/home/pi/DisplayHA
-  * Service \\ <code display.service>
-pi@SHome-Display-VPN-DNS:/ $ cat lib/systemd/system/display.service
+# --- Environment ---
-[Unit]
+# Diese Variablen sind wichtig für DDC/CI oder xrandr Interaktionen
-Description=Display Controller
-[Service]
 Environment=DISPLAY=:0
 Environment=XAUTHORITY=/home/pi/.Xauthority
-ExecStart=/usr/bin/python /home/pi/DisplayOn/MotionDetect.py
+# Erzwingt unbuffered Output, damit Logs sofort im Journal erscheinen
+Environment=PYTHONUNBUFFERED=1
+# --- ExecStart: Der Trick für das venv ---
+# Statt 'source bin/activate' rufen wir direkt das Python im venv auf.
+# PASSE DEN PFAD ZUM VENV AN, falls dein Ordner anders heißt (z.B. .venv)!
+ExecStart=/home/pi/DisplayHA/bin/python /home/pi/DisplayHA/SmartDisplay.py
+# --- Restart Verhalten ---
 Restart=always
-RestartSec=30s
+RestartSec=10s
-KillMode=process
-TimeoutSec=infinity
 [Install]
 WantedBy=graphical.target
 </code>