def run():
"""Main entry point to execute this program."""
if _isFirstRun():
_setRunsToCondition(CONDITIONING_RUNS)
ccs = ccs811.CCS811(i2c, mode=ccs811.CCS811.DRIVE_MODE_60SEC)
t, p, h = bme.read_data()
# Full update of Waveshare on power on
scr.update(t, h, None, None, bat.volts(), True)
else:
ccs = ccs811.CCS811(i2c, mode=None)
_addRun()
try:
ccs.read()
t, p, h = bme.read_data()
ccs.put_envdata(t, h)
if _isConditioned():
scr.update(t, h, ccs.eco2, ccs.tvoc, bat.volts())
else:
scr.update(t, h, None, None, bat.volts())
print('eCO2: %dppm, TVOC: %dppb, %.1fC, %.1f%%RH' %
(ccs.eco2, ccs.tvoc, t, h))
except OSError as e:
print(e)
_flashled()
scr.sleep()
esp32.wake_on_ext0(pin=config.int, level=0)
machine.deepsleep()
def run():
"""Main entry point to execute this program."""
try:
bme = bme280.BME280(i2c=_i2c, mode=bme280.BME280_OSAMPLE_4)
scr = screen.Screen(config)
if _delete_ccs811_baseline_requested():
_baseline.delete()
if _is_first_run():
# 20 runs (minutes), p9 of datasheet
_set_runs_to_condition(20)
ccs = ccs811.CCS811(_i2c, mode=ccs811.CCS811.DRIVE_MODE_60SEC)
t, p, h = bme.read_data()
# Full update of Waveshare on power on
scr.update(t, h, None, None, _bat.volts(), False, True)
else:
ccs = ccs811.CCS811(_i2c, mode=None)
_add_run()
ccs.read()
t, p, h = bme.read_data()
ccs.put_envdata(t, h)
if _ccs811_is_conditioned():
# Stored baseline should only be loaded after conditioning
if not _ccs811_baseline_is_loaded() and _baseline.exists():
baseline = _baseline.retrieve()
ccs.put_baseline(baseline)
_set_ccs811_baseline_loaded()
scr.update(t, h, None, None, _bat.volts())
print('ccs811 baseline %d loaded' % baseline)
else:
scr.update(t, h, ccs.eco2, ccs.tvoc, _bat.volts(),
_ccs811_baseline_is_loaded())
if _new_ccs811_baseline_requested():
baseline = ccs.get_baseline()
_baseline.store(baseline)
print('ccs811 baseline %d stored' % baseline)
else:
scr.update(t, h, None, None, _bat.volts())
print('eCO2: %dppm, TVOC: %dppb, %.1fC, %.1f%%RH, baseline: %r' %
(ccs.eco2, ccs.tvoc, t, h, _ccs811_baseline_is_loaded()))
scr.sleep()
_flash_led()
except Exception as e:
_flash_led(3)
print(e)
esp32.wake_on_ext0(pin=config.int, level=0)
machine.deepsleep()
def __init__(self, i2cvayla=0, scl=22, sda=21, taajuus=400000, osoite=90):
self.i2c = I2C(i2cvayla, scl=Pin(scl), sda=Pin(sda), freq=taajuus)
self.laiteosoite = osoite
self.sensori = ccs811.CCS811(self.i2c)
self.eCO2 = 0
self.tVOC = 0
self.eCO2_keskiarvo = 0
self.eCO2_arvoja = 0
self.tVOC_keskiarvo = 0
self.tVOC_arvoja = 0
self.luettu_aika = utime.time()
import usocket as socket
import utime as time
import ubinascii as binascii
import ccs811
import bme280
import esp8266_i2c_lcd
from machine import I2C, Pin
time.sleep(3)
i2c = I2C(scl=Pin(2), sda=Pin(4), freq=100000)
bme = bme280.BME280(i2c=i2c)
ccs = ccs811.CCS811(i2c)
lcd = esp8266_i2c_lcd.I2cLcd(i2c, 39, 2, 16)
sock = socket.socket(socket.AF_INET, socket.SOCK_DGRAM)
address = ("0.0.0.0", 2003)
delay_time = 5
def get_time():
lc = binascii.hexlify(i2c.readfrom_mem(104, 0x00, 7))
lt = (2000 + int(lc[12:14]), int(lc[10:12]), int(lc[8:10]), int(lc[4:6]),
int(lc[2:4]), int(lc[0:2]), int(lc[6:8]), 0)
return time.mktime(lt) + 946674000
while True:
time.sleep(delay_time)
lcd.clear()
lcd.move_to(2, 0)
lcd.putstr('Temperature')
lcd.move_to(4, 1)
def main():
me = singleton.SingleInstance(
) # will sys.exit(-1) if other instance is running
spinner = spinning_cursor()
# Intitialize sensors
try:
print("Intializing BME280 Sensor")
i2c = busio.I2C(board.SCL, board.SDA)
bme280 = adafruit_bme280.Adafruit_BME280_I2C(i2c)
bme280.sea_level_pressure = 1019.6 # 1013.25 is the standard value. Optimized by altitude, initial data from https://forecast.weather.gov/product.php?issuedby=BOU&product=OSO&site=bou
except Exception as ex:
print("Error intializing BME280 Sensor:", sys.exc_info()[0])
report_error(ex)
exit()
try:
print("Intializing CCS811 Sensor")
aqm = ccs.CCS811()
aqm.setup()
except Exception as ex:
print("Error intializing CCS811 Sensor:", sys.exc_info()[0])
report_error(ex)
exit()
# configure Google Cloud settings
credentials = GoogleCredentials.get_application_default()
publisher = pubsub.PublisherClient()
datetimeFormat = '%Y-%m-%d %H:%M:%S.%f'
start_time = datetime.datetime.utcnow()
while True:
current_time = datetime.datetime.utcnow()
sensorTime = current_time.strftime('%Y-%m-%d %H:%M:%S')
#capture BME readings
temp = '{0:0.2f}'.format(bme280.temperature)
humidity = '{0:0.2f}'.format(bme280.humidity)
dew_point = '{0:0.2f}'.format(
dewpoint(bme280.temperature, bme280.humidity))
pressure = '{0:0.2f}'.format(bme280.pressure)
altitude = '{0:0.2f}'.format(
bme280.altitude
) # not capturing (assuming stationary!) but displaying
# capture CCS811 readings
try:
if aqm.data_available():
aqm.read_logorithm_results()
eco2 = aqm.CO2
tvoc = aqm.tVOC
elif aqm.check_for_error():
aqm.print_error()
except Exception as ex:
print("Error condition detected reading CCS811 sensor: ",
sys.exc_info()[0])
report_error(ex)
print(
"\033c"
) # an admitedly hack way to clear the screen on a linux terminal
print("Date - Time:", sensorTime)
print("Temperature: %s C" % temp)
print(" Humidity: %s rh" % humidity)
print(" Dewpoint: %s C" % dew_point)
print(" Pressure: %s hPa" % pressure)
print(" Altitude: %s m" % altitude)
print(" eCO2: %d PPM " % eco2)
print(" tVOC: %d PPB " % tvoc)
run_time = current_time - start_time
if run_time.seconds < warmup_delay:
# elapsed_time = timedelta(run_time)
print("Warm up mode (20 minutes) Elapsed time:",
str(run_time).split('.')[0])
else:
print("Saving data")
sensorJSON = createJSON(sensorID, sensorTime, sensorZipCode,
sensorLat, sensorLong, temp,
humidity, dew_point, pressure, str(tvoc),
str(eco2)).encode('utf-8')
# print("Sensor Data JSON created")
# print("sensorJSON:", sensorJSON)
try:
publisher.publish(topicName, sensorJSON, placeholder='')
except Exception as ex:
print("Error condition detected sending sensor data: ",
sys.exc_info()[0])
report_error(ex)
if run_time.seconds < warmup_delay: #read more while warming up!
time.sleep(2)
else:
print("Pausing for", interval, "seconds")
sys.stdout.write('\033[s') # save cursor location
while ((datetime.datetime.utcnow() -
current_time).seconds) < (interval - 1):
sys.stdout.write(
next(spinner) + " " +
str((datetime.datetime.utcnow() - current_time).seconds))
sys.stdout.flush()
sys.stdout.write(
'\033[u') # move back to saved cursor location
time.sleep(.5)
import smbus2
import sys
import ccs811
address = int(sys.argv[1], 16)
assert address in [0x5a, 0x5b]
with smbus2.SMBus(1) as bus:
ccs811.CCS811(bus, address).reset()
