How to use the enviroplus.gas function in enviroplus
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pimoroni / enviroplus-python / examples / gas.py View on Github 
import logging
logging.basicConfig(
format='%(asctime)s.%(msecs)03d %(levelname)-8s %(message)s',
level=logging.INFO,
datefmt='%Y-%m-%d %H:%M:%S')
logging.info("""gas.py - Print readings from the MICS6814 Gas sensor.
Press Ctrl+C to exit!
""")
try:
while True:
readings = gas.read_all()
logging.info(readings)
time.sleep(1.0)
except KeyboardInterrupt:
passdef read_bme280(bme280):
# Compensation factor for temperature
comp_factor = 2.25
values = {}
cpu_temp = get_cpu_temperature()
raw_temp = bme280.get_temperature() # float
comp_temp = raw_temp - ((cpu_temp - raw_temp) / comp_factor)
values["temperature"] = int(comp_temp)
values["pressure"] = round(
int(bme280.get_pressure() * 100), -1
) # round to nearest 10
values["humidity"] = int(bme280.get_humidity())
data = gas.read_all()
values["oxidised"] = int(data.oxidising / 1000)
values["reduced"] = int(data.reducing / 1000)
values["nh3"] = int(data.nh3 / 1000)
values["lux"] = int(ltr559.get_lux())
return valuesunit = "kO"
data = gas.read_all()
data = data.oxidising / 1000
display_text(variables[mode], data, unit)
if mode == 5:
# variable = "reduced"
unit = "kO"
data = gas.read_all()
data = data.reducing / 1000
display_text(variables[mode], data, unit)
if mode == 6:
# variable = "nh3"
unit = "kO"
data = gas.read_all()
data = data.nh3 / 1000
display_text(variables[mode], data, unit)
if mode == 7:
# variable = "pm1"
unit = "ug/m3"
try:
data = pms5003.read()
except pmsReadTimeoutError:
logging.warning("Failed to read PMS5003")
else:
data = float(data.pm_ug_per_m3(1.0))
display_text(variables[mode], data, unit)
if mode == 8:
# variable = "pm25"data = bme280.get_humidity()
display_text(variables[mode], data, unit)
if mode == 3:
# variable = "light"
unit = "Lux"
if proximity < 10:
data = ltr559.get_lux()
else:
data = 1
display_text(variables[mode], data, unit)
if mode == 4:
# variable = "oxidised"
unit = "kO"
data = gas.read_all()
data = data.oxidising / 1000
display_text(variables[mode], data, unit)
if mode == 5:
# variable = "reduced"
unit = "kO"
data = gas.read_all()
data = data.reducing / 1000
display_text(variables[mode], data, unit)
if mode == 6:
# variable = "nh3"
unit = "kO"
data = gas.read_all()
data = data.nh3 / 1000
display_text(variables[mode], data, unit)data = bme280.get_humidity()
display_text(variables[mode], data, unit)
if mode == 3:
# variable = "light"
unit = "Lux"
if proximity < 10:
data = ltr559.get_lux()
else:
data = 1
display_text(variables[mode], data, unit)
if mode == 4:
# variable = "oxidised"
unit = "kO"
data = gas.read_all()
data = data.oxidising / 1000
display_text(variables[mode], data, unit)
if mode == 5:
# variable = "reduced"
unit = "kO"
data = gas.read_all()
data = data.reducing / 1000
display_text(variables[mode], data, unit)
if mode == 6:
# variable = "nh3"
unit = "kO"
data = gas.read_all()
data = data.nh3 / 1000
display_text(variables[mode], data, unit)def __init__(self):
try:
self.bme280 = BME280()
except ImportError:
print('Failed to load Enviro Plus BME280 module')
try:
from enviroplus import gas
self.gas = gas
except ImportError as e:
print(e)
try:
# Transitional fix for breaking change in LTR559
from ltr559 import LTR559
self.ltr559 = LTR559()
except ImportError:
import self.ltr559
self.sensor = 'enviroplus'enviroplus
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