update

master.py

@@ -0,0 +1,100 @@
+'''
+  __  __           _            
+ |  \/  | __ _ ___| |_ ___ _ __ 
+ | |\/| |/ _` / __| __/ _ \ '__|
+ | |  | | (_| \__ \ ||  __/ |   
+ |_|  |_|\__,_|___/\__\___|_|   
+                                
+Master Python script that will trigger other scripts at every chosen time pace
+This script is triggered as a systemd service used as an alternative to cronjobs
+
+Attention: 
+    to do -> prevent SARA R4 Script to run again if it's taking more than 60 secs to finish (using a lock file ??) 
+
+First time: need to create the service file
+
+-->sudo nano /etc/systemd/system/master_nebuleair.service
+
+⬇️
+[Unit]
+Description=Master manager for the Python loop scripts
+After=network.target
+
+[Service]
+ExecStart=/usr/bin/python3 /var/www/nebuleair_pro_4g/master.py
+Restart=always
+User=root
+WorkingDirectory=/var/www/nebuleair_pro_4g
+StandardOutput=append:/var/www/nebuleair_pro_4g/logs/master.log
+StandardError=append:/var/www/nebuleair_pro_4g/logs/master_errors.log
+
+[Install]
+WantedBy=multi-user.target
+⬆️
+
+Reload systemd (first time after creating the service):
+    sudo systemctl daemon-reload
+
+Enable (once), start (once and after stopping) and restart (after modification)systemd:
+    sudo systemctl enable master_nebuleair.service
+    sudo systemctl start master_nebuleair.service
+    sudo systemctl restart master_nebuleair.service
+
+Check the service status:
+    sudo systemctl status master_nebuleair.service
+
+
+Specific scripts can be disabled with config.json
+    Exemple: stop gathering data from NPM
+    Exemple: stop sending data with SARA R4
+
+'''
+import time
+import threading
+import subprocess
+import json
+import os
+
+# Base directory where scripts are stored
+SCRIPT_DIR = "/var/www/nebuleair_pro_4g/"
+CONFIG_FILE = "/var/www/nebuleair_pro_4g/config.json"
+
+def load_config():
+    """Load the configuration file to determine which scripts to run."""
+    with open(CONFIG_FILE, "r") as f:
+        return json.load(f)
+
+def run_script(script_name, interval, delay=0):
+    """Run a script in a synchronized loop with an optional start delay."""
+    script_path = os.path.join(SCRIPT_DIR, script_name)  # Build full path
+    next_run = time.monotonic() + delay  # Apply the initial delay
+
+    while True:
+        config = load_config()
+        if config.get(script_name, True):  # Default to True if not found
+            subprocess.run(["python3", script_path])
+        
+        # Wait until the next exact interval
+        next_run += interval
+        sleep_time = max(0, next_run - time.monotonic())  # Prevent negative sleep times
+        time.sleep(sleep_time)
+
+# Define scripts and their execution intervals (seconds)
+SCRIPTS = [
+    ("RTC/save_to_db.py", 1, 0),                # SAVE RTC time every 1 second, no delay
+    ("NPM/get_data_modbus_v3.py", 10, 0),       # Get NPM data (modbus 5 channels) every 10s, with 2s delay
+    ("envea/read_value_v2.py", 10, 0),          # Get NPM data (modbus 5 channels) every 10s, with 2s delay
+    ("loop/SARA_send_data_v2.py", 60, 1),       # Send data every 60 seconds, with 2s delay
+    ("BME280/get_data_v2.py", 120, 0),          # Get BME280 data every 120 seconds, no delay
+    ("sqlite/flush_old_data.py", 86400, 0)        # flush old data inside db every day ()
+]
+
+# Start threads for enabled scripts
+for script_name, interval, delay in SCRIPTS:
+    thread = threading.Thread(target=run_script, args=(script_name, interval, delay), daemon=True)
+    thread.start()
+
+# Keep the main script running
+while True:
+    time.sleep(1)
+