update

NPM/get_data_v2.py

@@ -0,0 +1,104 @@
+'''
+  _   _ ____  __  __ 
+ | \ | |  _ \|  \/  |
+ |  \| | |_) | |\/| |
+ | |\  |  __/| |  | |
+ |_| \_|_|   |_|  |_|
+                                     
+Script to get NPM values (PM1, PM2.5 and PM10)
+PM and the sensor temp/hum
+And store them inside sqlite database
+Uses RTC module for timing (from SQLite db)
+/usr/bin/python3 /var/www/nebuleair_pro_4g/NPM/get_data_v2.py
+'''
+
+import serial
+import requests
+import json
+import sys
+import sqlite3
+import smbus2
+import time
+from datetime import datetime
+
+# Connect to the SQLite database
+conn = sqlite3.connect("/var/www/nebuleair_pro_4g/sqlite/sensors.db")
+cursor = conn.cursor()
+
+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 {}
+
+# Load the configuration data
+config_file = '/var/www/nebuleair_pro_4g/config.json'
+config = load_config(config_file)
+npm_solo_port = config.get('NPM_solo_port', '')  #port du NPM solo
+
+ser = serial.Serial(
+    port=npm_solo_port,
+    baudrate=115200,
+    parity=serial.PARITY_EVEN,
+    stopbits=serial.STOPBITS_ONE,
+    bytesize=serial.EIGHTBITS,
+    timeout = 0.5
+)
+
+# 1️⃣ Request PM Data (PM1, PM2.5, PM10)
+
+#ser.write(b'\x81\x11\x6E')      #data10s
+ser.write(b'\x81\x12\x6D')      #data60s
+time.sleep(0.5)  # Small delay to allow the sensor to process the request
+
+#print("Start get_data_v2.py script")
+byte_data = ser.readline()
+#print(byte_data)
+stateByte = int.from_bytes(byte_data[2:3], byteorder='big')
+Statebits = [int(bit) for bit in bin(stateByte)[2:].zfill(8)]
+PM1 = int.from_bytes(byte_data[9:11], byteorder='big')/10
+PM25 = int.from_bytes(byte_data[11:13], byteorder='big')/10
+PM10 = int.from_bytes(byte_data[13:15], byteorder='big')/10
+
+# 2️⃣ Request Temperature & Humidity
+ser.write(b'\x81\x14\x6B')  # Temp and humidity command
+time.sleep(0.5)  # Small delay to allow the sensor to process the request
+byte_data_temp_hum = ser.readline()
+
+# Decode temperature and humidity values
+temperature = int.from_bytes(byte_data_temp_hum[3:5], byteorder='big') / 100.0
+humidity = int.from_bytes(byte_data_temp_hum[5:7], byteorder='big') / 100.0
+
+#print(f"State: {Statebits}")
+#print(f"PM1: {PM1}")
+#print(f"PM25: {PM25}")
+#print(f"PM10: {PM10}")
+#print(f"temp: {temperature}")
+#print(f"hum: {humidity}")
+
+#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'
+
+#save to sqlite database
+try:
+    cursor.execute('''
+    INSERT INTO data_NPM (timestamp,PM1, PM25, PM10, temp_npm, hum_npm) VALUES (?,?,?,?,?,?)'''
+    , (rtc_time_str,PM1,PM25,PM10,temperature,humidity  ))
+
+    # Commit and close the connection
+    conn.commit()
+
+    #print("Sensor data saved successfully!")
+
+except Exception as e:
+    print(f"Database error: {e}")    
+
+
+conn.close()
+
+