update

envea/read_value_v2.py

@@ -0,0 +1,121 @@
+"""
+  _____ _   ___     _______    _    
+ | ____| \ | \ \   / / ____|  / \   
+ |  _| |  \| |\ \ / /|  _|   / _ \  
+ | |___| |\  | \ V / | |___ / ___ \ 
+ |_____|_| \_|  \_/  |_____/_/   \_\
+                                    
+Gather data from envea Sensors and store them to the SQlite table
+Use the RTC time for the timestamp
+
+/usr/bin/python3 /var/www/nebuleair_pro_4g/envea/read_value_v2.py
+
+"""
+
+import json
+import serial
+import time
+import traceback
+import sqlite3
+from datetime import datetime
+
+# Connect to the SQLite database
+conn = sqlite3.connect("/var/www/nebuleair_pro_4g/sqlite/sensors.db")
+cursor = conn.cursor()
+
+#GET RTC TIME from SQlite
+cursor.execute("SELECT * FROM timestamp_table LIMIT 1")
+row = cursor.fetchone()  # Get the first (and only) row
+rtc_time_str = row[1]  # '2025-02-07 12:30:45'
+
+# Function to load config data
+def load_config(config_file):
+    try:
+        with open(config_file, 'r') as file:
+            config_data = json.load(file)
+        return config_data
+    except Exception as e:
+        print(f"Error loading config file: {e}")
+        return {}
+
+# Define the config file path
+config_file = '/var/www/nebuleair_pro_4g/config.json'
+
+# Load the configuration data
+config = load_config(config_file)
+
+# Initialize sensors and serial connections
+envea_sondes = config.get('envea_sondes', [])
+connected_envea_sondes = [sonde for sonde in envea_sondes if sonde.get('connected', False)]
+serial_connections = {}
+
+if connected_envea_sondes:
+    for device in connected_envea_sondes:
+        port = device.get('port', 'Unknown')
+        name = device.get('name', 'Unknown')
+        try:
+            serial_connections[name] = serial.Serial(
+                port=f'/dev/{port}',
+                baudrate=9600,
+                parity=serial.PARITY_NONE,
+                stopbits=serial.STOPBITS_ONE,
+                bytesize=serial.EIGHTBITS,
+                timeout=1
+            )
+        except serial.SerialException as e:
+            print(f"Error opening serial port for {name}: {e}")
+
+global data_h2s, data_no2, data_o3
+data_h2s = 0
+data_no2 = 0
+data_o3 = 0
+data_co = 0
+data_nh3 = 0
+
+try:
+    if connected_envea_sondes:
+        for device in connected_envea_sondes:
+            name = device.get('name', 'Unknown')
+            coefficient = device.get('coefficient', 1)
+            if name in serial_connections:
+                serial_connection = serial_connections[name]
+                try:
+                    serial_connection.write(
+                        b"\xFF\x02\x13\x30\x01\x02\x03\x04\x05\x06\xFF\xFF\xFF\xFF\xFF\xFF\xFF\xFF\x12\xAF\x88\x03"
+                    )
+                    data_envea = serial_connection.readline()
+                    if len(data_envea) >= 20:
+                        byte_20 = data_envea[19] * coefficient
+                        if name == "h2s":
+                            data_h2s = byte_20
+                        elif name == "no2":
+                            data_no2 = byte_20
+                        elif name == "o3":
+                            data_o3 = byte_20
+                except serial.SerialException as e:
+                    print(f"Error communicating with {name}: {e}")
+except Exception as e:
+    print("An error occurred while gathering data:", e)
+    traceback.print_exc()
+
+
+#print(f"  H2S: {data_h2s}, NO2: {data_no2}, O3: {data_o3}")
+
+#save to sqlite database
+try:
+    cursor.execute('''
+    INSERT INTO data_envea (timestamp,h2s, no2, o3, co, nh3) VALUES (?,?,?,?,?,?)'''
+    , (rtc_time_str,data_h2s,data_no2,data_o3,data_co,data_nh3  ))
+
+    # Commit and close the connection
+    conn.commit()
+
+    #print("Sensor data saved successfully!")
+
+except Exception as e:
+    print(f"Database error: {e}")    
+
+
+conn.close()
+
+