def __init__(self):
self.i2c = busio.I2C(board.SCL, board.SDA)
self.tca = TCA9548A(self.i2c)
self.sensor1 = HTU21D(self.tca[2])
self.sensor2 = HTU21D(self.tca[4])
self.sensor3 = HTU21D(self.tca[6])
self.sensor4 = HTU21D(self.tca[7])
self.loadCalibration()
def get_humidity():
try:
# Create library object using our Bus I2C port
i2c = busio.I2C(SCL, SDA)
sensor = HTU21D(i2c)
# print("\nTemperature: %0.1f C" % sensor.temperature)
print("Humidity: %0.1f %%" % sensor.relative_humidity)
return sensor.relative_humidity
except Exception as e:
return 0
def __init__(self, blackboard, temp_offset):
self.stop_requested = False
self.stop_event = threading.Event()
self.blackboard = blackboard
self.temp_offset = temp_offset
# initialize the sensor
i2c = busio.I2C(board.SCL, board.SDA)
self.htu21d = HTU21D(i2c)
import time import board import busio from adafruit_htu21d import HTU21D i2c = busio.I2C(board.SCL, board.SDA) sensor = HTU21D(i2c) print(sensor.temperature) print(sensor.relative_humidity)
mport time
import RPi.GPIO as GPIO
from adafruit_htu21d import HTU21D
import busio
GPIO.setmode(GPIO.BCM)
GPIO.setwarnings(False)
sda = 2 # GPIO 핀 번호, sda라고 이름이 보이는 핀
scl = 3 # GPIO 핀 번호, scl이라고 이름이 보이는 핀
i2c = busio.I2C(scl, sda)
sensor = HTU21D(i2c) # HTU21D 장치를 제어하는 객체 리턴
def getTemperature() :
return float(sensor.temperature) # HTU21D 장치로부터 온도 값 읽기
def getHumidity() :
return float(sensor.relative_humidity) # HTU21D 장치로부터 습도 값 읽기
while True :
print("Current temperature is %4.1d" % getTemperature())
print("Current humidity is %4.1d %%" % getHumidity())
time.sleep(1)
def __init__(self):
self.i2c = busio.I2C(board.SCL, board.SDA)
self.sensor = HTU21D(self.i2c)
self.request.sendall(bytes(json_to_send, 'UTF-8'))
elif ("get_something" in self.data.decode("utf-8")):
self.request.sendall(bytes("whattt?", 'UTF-8'))
if __name__ == "__main__":
# Create logger and set options
logging.getLogger().setLevel(logging.INFO)
logging.info("Starting logging")
# Create the data server and assigning the request handler
logging.info("Starting socket server")
try:
i2c = busio.I2C(board.SCL, board.SDA)
htu21dsensor = HTU21D(i2c)
except:
logging.info("No htu21dsensor detected, or a fault happened.",
exc_info=True)
htu21dsensor = None
try:
bmp085sensor = BMP085.BMP085()
except:
logging.info("No bmp085 detected, or a fault happened.", exc_info=True)
bmp085sensor = None
try:
tmp102sensor = TMP102('C', 0x48, 1)
except:
def work_HTU21D(name, data):
def getPaths(value, value2, key, offset, raw):
Erg = ''
if value2:
try:
value3 = float(value2)
Erg += '{"path": "' + key + '","value":' + str(offset +
value3) + '},'
except:
Erg += '{"path": "' + key + '","value":"' + str(value2) + '"},'
else:
Erg += '{"path": "' + key + '","value": null},'
if raw and value:
try:
value4 = float(value)
Erg += '{"path": "' + key + '.raw","value":' + str(
value4) + '},'
except:
Erg += '{"path": "' + key + '.raw","value":"' + str(
value) + '"},'
return Erg
humidityKey = data['data'][0]['SKkey']
temperatureKey = data['data'][1]['SKkey']
if humidityKey or temperatureKey:
from adafruit_htu21d import HTU21D
address = data['address']
i2c = busio.I2C(board.SCL, board.SDA)
sensor = HTU21D(i2c, address=int(address, 16))
if humidityKey:
humidityRaw = data['data'][0]['raw']
humidityRate = data['data'][0]['rate']
humidityOffset = data['data'][0]['offset']
if temperatureKey:
temperatureRaw = data['data'][1]['raw']
temperatureRate = data['data'][1]['rate']
temperatureOffset = data['data'][1]['offset']
sock = socket.socket(socket.AF_INET, socket.SOCK_DGRAM)
port = data['port']
tick1 = time.time()
tick2 = tick1
while True:
time.sleep(0.1)
try:
Erg = ''
if humidityKey:
tick0 = time.time()
if tick0 - tick1 > humidityRate:
try:
humidityValue = round(sensor.relative_humidity, 1)
except:
humidityValue = sensor.relative_humidity
humidityValue2 = humidityValue
Erg += getPaths(humidityValue, humidityValue2,
humidityKey, humidityOffset,
humidityRaw)
tick1 = time.time()
if temperatureKey:
tick0 = time.time()
if tick0 - tick2 > temperatureRate:
try:
temperatureValue = round(sensor.temperature, 1)
except:
temperatureValue = sensor.temperature
try:
temperatureValue2 = float(
temperatureValue) + 273.15
except:
temperatureValue2 = ''
Erg += getPaths(temperatureValue, temperatureValue2,
temperatureKey, temperatureOffset,
temperatureRaw)
tick2 = time.time()
if Erg:
SignalK = '{"updates":[{"$source":"OpenPlotter.I2C.' + name + '","values":['
SignalK += Erg[0:-1] + ']}]}\n'
sock.sendto(SignalK.encode('utf-8'), ('127.0.0.1', port))
except Exception as e:
print("HTU21D reading failed: " + str(e))
from adafruit_htu21d import HTU21D
# Create library object using our Bus I2C port
i2c = busio.I2C(board.SCL, board.SDA)
sensor_i2c_address = None
scanning_frequency = 5
reading_frequency = 1
while True:
print("\nScanning for I2C device address to appear\n")
sensor_i2c_address = next(iter(i2c.scan()), None)
if sensor_i2c_address:
print(f"\nFound sensor address at {sensor_i2c_address}\n")
break
else:
print("\nFailed to detect any connected I2C sensors. "
f"Sleeping for {scanning_frequency} seconds before rescan...\n")
time.sleep(scanning_frequency)
sensor = HTU21D(i2c, sensor_i2c_address)
while True:
try:
print("\nTemperature: %0.1f C" % sensor.temperature)
print("Relative Humidity: %0.1f %%" % sensor.relative_humidity)
except ValueError as e:
print(f"Error while reading sensor: {e}\n")
time.sleep(reading_frequency)
#smbus2 : https://pypi.org/project/smbus2/
#RTC : https://datasheets.maximintegrated.com/en/ds/DS3231.pdf
#Sensor : https://cdn-shop.adafruit.com/datasheets/1899_HTU21D.pdf
from smbus2 import SMBus #pip install smbus2
import blynklib #sudo pip install blynklib
import board
from adafruit_htu21d import HTU21D #pip install adafruit-circuitpython-htu21d
BlynkAuth = 'yfW9zija6MMG9q5DKPBM8JRalVZPX845'
blynk = blynklib.Blynk(BlynkAuth)
i2c = SMBus(1) #número de bus i2c
device = {"HTU21D": 0x40,
"DS3231" : 0x68
}
sensor = HTU21D(board.I2C())
setTemp = 0
temp = 0
pins = {"Temp" : 0,
"Humidity" : 2,
"Hours" :10,
"Minutes" : 11,
"Seconds" : 12,
"Heating" : 3,
"Cooling" : 4
}
def readSensor():
return[sensor.temperature,sensor.relative_humidity]
def HTU21DF_get_data():
i2c = busio.I2C(board.SCL, board.SDA)
sensor = HTU21D(i2c)
temp = c_to_f(sensor.temperature)
humidity = sensor.relative_humidity
return {'time': time.time(), 'temp': temp, 'humidity': humidity}
