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main_recorder.py
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main_recorder.py
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#!/usr/bin/env python
import pandas as pd
import os
import time
from pms5003 import PMS5003, ReadTimeoutError
from enviroplus import gas
try:
# Transitional fix for breaking change in LTR559
from ltr559 import LTR559
ltr559 = LTR559()
except ImportError:
import ltr559
from bme280 import BME280
try:
from smbus2 import SMBus
except ImportError:
from smbus import SMBus
# Get the temperature of the CPU for compensation
def get_cpu_temperature():
with open("/sys/class/thermal/thermal_zone0/temp", "r") as f:
temp = f.read()
temp = int(temp) / 1000.0
return temp
from datetime import datetime
cpu_temps = [get_cpu_temperature()] * 5
# PMs
pms5003 = PMS5003()
bus = SMBus(1)
bme280 = BME280(i2c_dev=bus)
time.sleep(1.0)
data = {}
data['cpu_factor'] = 0.95
try:
while True:
now = datetime.now()
data['datetime'] = now.strftime("%d/%m/%Y %H:%M:%S")
data['temperature'] = bme280.get_temperature()
cpu_temp = get_cpu_temperature()
# Smooth out with some averaging to decrease jitter
cpu_temps = cpu_temps[1:] + [cpu_temp]
data['avg_cpu_temp'] = sum(cpu_temps) / float(len(cpu_temps))
raw_temp = data['temperature']
data['comp_temp'] = raw_temp - ((data['avg_cpu_temp'] - data['temperature']) / data['cpu_factor'])
data['pressure'] = bme280.get_pressure()
data['humidity'] = bme280.get_humidity()
data['gas_nh3'] = gas.read_nh3()
data['gas_oxidising'] = gas.read_oxidising()
data['gas_reducing'] = gas.read_reducing()
data['lux'] = ltr559.get_lux()
data['prox'] = ltr559.get_proximity()
try:
pms = pms5003.read()
data['pms1_0'] = pms.data[0]
data['pms2_5'] = pms.data[1]
data['pms10'] = pms.data[2]
data['pms1_0_atmenv'] = pms.data[3]
data['pms2_5_atmenv'] = pms.data[4]
data['pms10_atmenv'] = pms.data[5]
data['pms_03_in_01'] = pms.data[6]
data['pms_05_in_01'] = pms.data[7]
data['pms_1_in_01'] = pms.data[8]
data['pms_2_5_in_01'] = pms.data[9]
data['pms_5_in_01'] = pms.data[10]
data['pms_10_in_01'] = pms.data[11]
except ReadTimeoutError:
pms = PMS5003()#pms5003 = PMS5003()
time.sleep(2.0)
df =pd.DataFrame.from_dict(data, orient='index').T
datafile = '/home/pi/Desktop/sensor_data.csv'
if os.path.isfile(datafile):
df.to_csv('sensor_data.csv', mode='a', header=False)
else:
df.to_csv('sensor_data.csv', mode='a', header=True)
except KeyboardInterrupt:
pass