def __init__(self):
# First, check to see if there is a BME680 on the I2C bus
try:
self.bus.write_byte(0x76, 0)
except IOError:
print('BME680 not found on 0x76, trying 0x77')
else:
self.readfrom = 'bme680primary'
# If we didn't find it on 0x76, look on 0x77
if self.readfrom == 'unset':
try:
self.bus.write_byte(0x77, 0)
except IOError:
print('BME680 not found on 0x77')
else:
self.readfrom = 'bme680secondary'
# If no BME680, is there a Sense HAT?
if self.readfrom == 'unset':
try:
self.bus.write_byte(0x5F, 0)
except:
print('Sense HAT not found')
else:
self.readfrom = 'sense-hat'
print('Using Sense HAT for readings (no gas measurements)')
# Import the sense hat methods
import sense_hat_air_quality
from hts221 import HTS221
self.sense_hat_reading = lambda: sense_hat_air_quality.get_readings(HTS221())
else:
print('Using BME680 for readings')
# Import the BME680 methods
self.sensor = BME680(self.readfrom)
# Next, check if there is a 1-wire temperature sensor (e.g. DS18B20)
if self.readfrom == 'unset':
if os.environ.get('BALENASENSE_1WIRE_SENSOR_ID') != None:
sensor_id = os.environ['BALENASENSE_1WIRE_SENSOR_ID']
else:
sensor_id = None
try:
self.sensor = W1THERM(sensor_id)
except:
print('1-wire sensor not found')
else:
self.readfrom = '1-wire'
print('Using 1-wire for readings (temperature only)')
# If this is still unset, no sensors were found; quit!
if self.readfrom == 'unset':
print('No suitable sensors found! Exiting.')
sys.exit()
def __init__(self):
# First, check to see if there is a BME680 on the I2C bus
try:
self.bus.write_byte(0x76, 0)
except IOError:
print('BME680 not found on 0x76, trying 0x77')
else:
self.readfrom = 'bme680primary'
# If we didn't find it on 0x76, look on 0x77
if self.readfrom == 'unset':
try:
self.bus.write_byte(0x77, 0)
except IOError:
print('BME680 not found on 0x77')
else:
self.readfrom = 'bme680secondary'
# If no BME680, is there a Sense HAT?
if self.readfrom == 'unset':
try:
self.bus.write_byte(0x5F, 0)
except:
print('Sense HAT not found')
else:
self.readfrom = 'sense-hat'
print('Using Sense HAT for readings (no gas measurements)')
# Import the sense hat methods
try:
import sense_hat_air_quality
print('Module sense_hat_air_quality was correctly imported')
except:
print('Module sense_hat_air_quality could not be imported')
self.sensor = HTS221()
else:
print('Using BME680 for readings')
# Import the BME680 methods
self.sensor = BME680(self.readfrom)
# If this is still unset, no sensors were found; quit!
if self.readfrom == 'unset':
print('No suitable sensors found! Exiting.')
sys.exit()
#!/usr/bin/python3
from tsl2561 import TSL2561
from bme680 import BME680
from ds18b20_therm import DS18B20
import bme680
import MySQLdb
tsl = TSL2561()
bme = BME680(i2c_addr=bme680.I2C_ADDR_SECONDARY)
ds = DS18B20()
bme.set_humidity_oversample(bme680.OS_2X)
bme.set_pressure_oversample(bme680.OS_4X)
bme.set_temperature_oversample(bme680.OS_8X)
bme.set_filter(bme680.FILTER_SIZE_3)
bme.set_gas_status(bme680.ENABLE_GAS_MEAS)
bme.set_gas_heater_temperature(320)
bme.set_gas_heater_duration(150)
bme.select_gas_heater_profile(0)
bme.get_sensor_data()
sample = {
"air_temp": 0,
"ground_temp": 0,
"pressure": 0,
"humidity": 0,
"air_conductivity": 0,
"light": 0
def init_sensors(kind):
global bme680, si7021, sht31, pmsx003, anemo, vane, rain
global cwop, display
# ===== pin configuration, see also Projects/kicad/esp32-weather/README.md
if kind == "lolin-d32":
scl0, sda0 = 23, 22 # bme680, si7021, sht31
scl1, sda1 = 18, 4 # oled
scl2, sda2 = 13, 12 # expansion
pm_tx, pm_rx = 25, 26 # pmsa003
anemo_pin = 39 # anemometer pulse
vane_pin = 36 # wind vane analog
rain_pin = 34 # rain pulse
pow_3v3 = 32 # active-low power for anemo/vane/rain/pmsa003
else:
raise ("Unknown board kind: " + kind)
# ===== init devices
# show splash screen on display
from ssd1306 import SSD1306_I2C
try:
scl1_pin = machine.Pin(scl1)
sda1_pin = machine.Pin(sda1, pull=machine.Pin.PULL_UP) # pup: helps presence detection
display = SSD1306_I2C(128, 64, machine.I2C(scl=scl1_pin, sda=sda1_pin, freq=1000000))
display.fill(1)
display.fill_rect(10, 10, 108, 44, 0)
display.text("WCC Weather", 20, 20, 1)
display.show()
log.info("Found display")
except Exception as e:
display = None
log.warning("No display: %s", e)
# start power for anemo, vane, etc.
pow_3v3_pin = machine.Pin(pow_3v3, machine.Pin.OUT)
pow_3v3_pin(0)
# I2C bus for primary sensors
scl0_pin = machine.Pin(scl0)
sda0_pin = machine.Pin(sda0)
i2c0_dev = machine.I2C(scl=scl0_pin, sda=sda0_pin, freq=100000)
# BME680 temperature/humidity/pressure/voc
from bme680 import BME680
try:
bme680 = BME680(i2c0_dev)
bme680.set_gas_heater_temperature(320)
bme680.set_gas_heater_duration(100)
log.info("Found BME680")
except Exception as e:
bme680 = None
log.warning("No BME680 found: %s", e)
# SI7021 temperature/humidity
from si7021 import Si7021
try:
si7021 = Si7021(i2c0_dev)
si7021.convert()
log.info("Found Si7021")
except Exception as e:
si7021 = None
log.warning("No Si7021 found: %s", e)
# SHT31 temperature/humidity
from sht31 import SHT31
try:
sht31 = SHT31(i2c0_dev)
sht31.convert()
log.info("Found SHT31")
except Exception as e:
sht31 = None
log.warning("No SHT31 found: %s", e)
# PMSx003 PM sensor
from pms_x003 import PMSx003
try:
pmsx003 = PMSx003(tx=pm_tx, rx=pm_rx)
log.info("Found PMSx003")
except Exception as e:
pmsx003 = None
log.warning("No PMSx003 found: %s", e)
# Anemometer and wind vane
from wind import Anemo, Vane
from counter import Counter
try:
# configure pin with pull-up
machine.Pin(anemo_pin, mode=machine.Pin.IN)
anemo_ctr = Counter(0, anemo_pin)
anemo_ctr.filter(10) # 10us filter
anemo = Anemo(anemo_ctr, 2.5) # 2.5 mph per Hz
anemo.start()
except Exception as e:
anemo = None
log.exc(e, "Anemometer failed to init")
try:
vane = Vane(vane_pin, 140, 1600, 15)
vane.start()
except Exception as e:
vane = None
log.exc(e, "Wind vane failed to init")
# init rain gauge
pass
# init CWOP
try:
from cwop import send_wx
cwop = send_wx
except ImportError:
log.warning("Cannot import CWOP, skipping")
import machine
import time
from bme680 import BME680
from io_pubsub import IOClient
adc = machine.ADC(machine.Pin(35))
adc.atten(machine.ADC.ATTN_11DB) # provides full range of 0-4095
led = machine.Pin(22, machine.Pin.OUT) # LED on the board
led.value(0)
bme680 = BME680()
io = IOClient()
while True:
battery = (adc.read() * 2 * 3.3) / 4096
print("Battery: %d mV", battery)
io.update(bme680.temperature, bme680.humidity, bme680.pressure, bme680.gas,
battery)
io.publish()
time.sleep(60)
def __init__(self):
# First, check for enviro plus hat (since it also has BME on 0x76)
try:
self.bus.write_byte(0x23, 0) # test if we can connect to ADS1015
except IOError:
print('Enviro Plus hat not found')
# Fix issue of LTR559 not found
print('SUPSPECT USING CHEAP CHINESE BME680 :)')
else:
try:
self.sensor = ENVIROPLUS()
print('Found Enviro+ Hat')
self.readfrom = 'enviroplus'
except RuntimeError:
# Fix issue of LTR559 not found
print('SUPSPECT USING CHEAP CHINESE BME680 :)')
# Next, check to see if there is a BME680 on the I2C bus
if self.readfrom == 'unset':
try:
self.bus.write_byte(0x76, 0)
except IOError:
print('BME680 not found on 0x76, trying 0x77')
else:
print('BME680 found on 0x76')
self.readfrom = 'bme680primary'
self.sensor = BME680(self.readfrom)
# If we didn't find it on 0x76, look on 0x77
if self.readfrom == 'unset':
try:
self.bus.write_byte(0x77, 0)
except IOError:
print('BME680 not found on 0x77')
else:
print('BME680 found on 0x77')
self.readfrom = 'bme680secondary'
self.sensor = BME680(self.readfrom)
# If no BME680, is there a Sense HAT?
if self.readfrom == 'unset':
try:
self.bus.write_byte(0x5F, 0)
except:
print('Sense HAT not found')
else:
self.readfrom = 'sense-hat'
print('Using Sense HAT for readings (no gas measurements)')
# Import the sense hat methods
import sense_hat_air_quality
from hts221 import HTS221
self.sense_hat_reading = lambda: sense_hat_air_quality.get_readings(
HTS221())
# Next, check if there is a 1-wire temperature sensor (e.g. DS18B20)
if self.readfrom == 'unset':
if os.environ.get('BALENASENSE_1WIRE_SENSOR_ID') != None:
sensor_id = os.environ['BALENASENSE_1WIRE_SENSOR_ID']
else:
sensor_id = None
try:
self.sensor = W1THERM(sensor_id)
except:
print('1-wire sensor not found')
else:
self.readfrom = '1-wire'
print('Using 1-wire for readings (temperature only)')
# If this is still unset, no sensors were found; quit!
if self.readfrom == 'unset':
print('No suitable sensors found! Exiting.')
sys.exit()