Timing and Formatadaptions
This commit is contained in:
parent
afedf43bdf
commit
6ab2629fb1
298
bmp.py
298
bmp.py
@ -1,148 +1,150 @@
|
||||
import logging
|
||||
import time
|
||||
|
||||
try:
|
||||
from config import APP_NAME as ROOT_LOGGER_NAME
|
||||
except ImportError:
|
||||
ROOT_LOGGER_NAME = 'root'
|
||||
|
||||
logger = logging.getLogger(ROOT_LOGGER_NAME).getChild(__name__)
|
||||
|
||||
from . import background_task
|
||||
|
||||
try:
|
||||
import smbus
|
||||
except ImportError:
|
||||
logger.warning("Could not import smbus. DEBUG set to True.")
|
||||
DEBUG = True
|
||||
else:
|
||||
from . import DEBUG
|
||||
|
||||
|
||||
class bmp_180(background_task):
|
||||
RUN_SLEEP_TIME = 0.5
|
||||
SMBUS_DELAY = 0.5
|
||||
MIN_REFRESH_RATE = RUN_SLEEP_TIME + 3 * SMBUS_DELAY
|
||||
KEY_TEMPERATURE = 'temperature'
|
||||
KEY_PRESSURE = 'pressure'
|
||||
KEY_TIME = 'time'
|
||||
|
||||
def __init__(self, data_callback=None):
|
||||
self.__data_callback__ = data_callback
|
||||
# Initialise background_task
|
||||
background_task.__init__(self)
|
||||
|
||||
def __run__(self):
|
||||
data = self.__bmp_data_transmission__()
|
||||
if data is not None:
|
||||
logger.debug('BMP-Communication: Successfully: %s', repr(data))
|
||||
if self.__data_callback__ is not None:
|
||||
self.__data_callback__(**data)
|
||||
|
||||
def __bmp_data_transmission__(self):
|
||||
if not DEBUG:
|
||||
rv = {}
|
||||
# Get I2C bus
|
||||
bus = smbus.SMBus(1)
|
||||
|
||||
# BMP180 address, 0x77(119)
|
||||
# Read data back from 0xAA(170), 22 bytes
|
||||
data = bus.read_i2c_block_data(0x77, 0xAA, 22)
|
||||
|
||||
# Convert the data
|
||||
AC1 = data[0] * 256 + data[1]
|
||||
if AC1 > 32767 :
|
||||
AC1 -= 65535
|
||||
AC2 = data[2] * 256 + data[3]
|
||||
if AC2 > 32767 :
|
||||
AC2 -= 65535
|
||||
AC3 = data[4] * 256 + data[5]
|
||||
if AC3 > 32767 :
|
||||
AC3 -= 65535
|
||||
AC4 = data[6] * 256 + data[7]
|
||||
AC5 = data[8] * 256 + data[9]
|
||||
AC6 = data[10] * 256 + data[11]
|
||||
B1 = data[12] * 256 + data[13]
|
||||
if B1 > 32767 :
|
||||
B1 -= 65535
|
||||
B2 = data[14] * 256 + data[15]
|
||||
if B2 > 32767 :
|
||||
B2 -= 65535
|
||||
MB = data[16] * 256 + data[17]
|
||||
if MB > 32767 :
|
||||
MB -= 65535
|
||||
MC = data[18] * 256 + data[19]
|
||||
if MC > 32767 :
|
||||
MC -= 65535
|
||||
MD = data[20] * 256 + data[21]
|
||||
if MD > 32767 :
|
||||
MD -= 65535
|
||||
|
||||
time.sleep(self.SMBUS_DELAY)
|
||||
|
||||
# BMP180 address, 0x77(119)
|
||||
# Select measurement control register, 0xF4(244)
|
||||
# 0x2E(46) Enable temperature measurement
|
||||
bus.write_byte_data(0x77, 0xF4, 0x2E)
|
||||
|
||||
time.sleep(self.SMBUS_DELAY)
|
||||
|
||||
# BMP180 address, 0x77(119)
|
||||
# Read data back from 0xF6(246), 2 bytes
|
||||
# temp MSB, temp LSB
|
||||
data = bus.read_i2c_block_data(0x77, 0xF6, 2)
|
||||
|
||||
# Convert the data
|
||||
temp = data[0] * 256 + data[1]
|
||||
|
||||
# BMP180 address, 0x77(119)
|
||||
# Select measurement control register, 0xF4(244)
|
||||
# 0x74(116) Enable pressure measurement, OSS = 1
|
||||
bus.write_byte_data(0x77, 0xF4, 0x74)
|
||||
|
||||
time.sleep(self.SMBUS_DELAY)
|
||||
|
||||
# BMP180 address, 0x77(119)
|
||||
# Read data back from 0xF6(246), 3 bytes
|
||||
# pres MSB1, pres MSB, pres LSB
|
||||
data = bus.read_i2c_block_data(0x77, 0xF6, 3)
|
||||
|
||||
rv[self.KEY_TIME] = int(time.time())
|
||||
|
||||
# Convert the data
|
||||
pres = ((data[0] * 65536) + (data[1] * 256) + data[2]) / 128
|
||||
# Callibration for Temperature
|
||||
X1 = (temp - AC6) * AC5 / 32768.0
|
||||
X2 = (MC * 2048.0) / (X1 + MD)
|
||||
B5 = X1 + X2
|
||||
rv[self.KEY_TEMPERATURE] = ((B5 + 8.0) / 16.0) / 10.0
|
||||
|
||||
# Calibration for Pressure
|
||||
B6 = B5 - 4000
|
||||
X1 = (B2 * (B6 * B6 / 4096.0)) / 2048.0
|
||||
X2 = AC2 * B6 / 2048.0
|
||||
X3 = X1 + X2
|
||||
B3 = (((AC1 * 4 + X3) * 2) + 2) / 4.0
|
||||
X1 = AC3 * B6 / 8192.0
|
||||
X2 = (B1 * (B6 * B6 / 2048.0)) / 65536.0
|
||||
X3 = ((X1 + X2) + 2) / 4.0
|
||||
B4 = AC4 * (X3 + 32768) / 32768.0
|
||||
B7 = ((pres - B3) * (25000.0))
|
||||
pressure = 0.0
|
||||
if B7 < 2147483648:
|
||||
pressure = (B7 * 2) / B4
|
||||
else :
|
||||
pressure = (B7 / B4) * 2
|
||||
X1 = (pressure / 256.0) * (pressure / 256.0)
|
||||
X1 = (X1 * 3038.0) / 65536.0
|
||||
X2 = ((-7357) * pressure) / 65536.0
|
||||
rv[self.KEY_PRESSURE] = (pressure + (X1 + X2 + 3791) / 16.0) / 100
|
||||
|
||||
return rv
|
||||
else:
|
||||
time.sleep(3 * self.SMBUS_DELAY)
|
||||
return {
|
||||
self.KEY_PRESSURE: 1717.,
|
||||
self.KEY_TEMPERATURE: 17.17,
|
||||
self.KEY_TIME: int(time.time())
|
||||
}
|
||||
import logging
|
||||
import time
|
||||
|
||||
try:
|
||||
from config import APP_NAME as ROOT_LOGGER_NAME
|
||||
except ImportError:
|
||||
ROOT_LOGGER_NAME = 'root'
|
||||
|
||||
logger = logging.getLogger(ROOT_LOGGER_NAME).getChild(__name__)
|
||||
|
||||
from . import background_task
|
||||
|
||||
try:
|
||||
import smbus
|
||||
except ImportError:
|
||||
logger.warning("Could not import smbus. DEBUG set to True.")
|
||||
DEBUG = True
|
||||
else:
|
||||
from . import DEBUG
|
||||
|
||||
|
||||
class bmp_180(background_task):
|
||||
RUN_SLEEP_TIME = 2.0
|
||||
SMBUS_DELAY = 0.5
|
||||
MIN_REFRESH_RATE = RUN_SLEEP_TIME + 3 * SMBUS_DELAY
|
||||
KEY_TEMPERATURE = 'temperature'
|
||||
KEY_PRESSURE = 'pressure'
|
||||
KEY_TIME = 'time'
|
||||
|
||||
def __init__(self, data_callback=None):
|
||||
self.__data_callback__ = data_callback
|
||||
# Initialise background_task
|
||||
background_task.__init__(self)
|
||||
|
||||
def __run__(self):
|
||||
data = self.__bmp_data_transmission__()
|
||||
if data is not None:
|
||||
logger.info('BMP-Communication successful: %s', repr(data))
|
||||
if self.__data_callback__ is not None:
|
||||
self.__data_callback__(**data)
|
||||
else:
|
||||
logger.debug('BMP-Communication failed: No data received')
|
||||
|
||||
def __bmp_data_transmission__(self):
|
||||
if not DEBUG:
|
||||
rv = {}
|
||||
# Get I2C bus
|
||||
bus = smbus.SMBus(1)
|
||||
|
||||
# BMP180 address, 0x77(119)
|
||||
# Read data back from 0xAA(170), 22 bytes
|
||||
data = bus.read_i2c_block_data(0x77, 0xAA, 22)
|
||||
|
||||
# Convert the data
|
||||
AC1 = data[0] * 256 + data[1]
|
||||
if AC1 > 32767 :
|
||||
AC1 -= 65535
|
||||
AC2 = data[2] * 256 + data[3]
|
||||
if AC2 > 32767 :
|
||||
AC2 -= 65535
|
||||
AC3 = data[4] * 256 + data[5]
|
||||
if AC3 > 32767 :
|
||||
AC3 -= 65535
|
||||
AC4 = data[6] * 256 + data[7]
|
||||
AC5 = data[8] * 256 + data[9]
|
||||
AC6 = data[10] * 256 + data[11]
|
||||
B1 = data[12] * 256 + data[13]
|
||||
if B1 > 32767 :
|
||||
B1 -= 65535
|
||||
B2 = data[14] * 256 + data[15]
|
||||
if B2 > 32767 :
|
||||
B2 -= 65535
|
||||
MB = data[16] * 256 + data[17]
|
||||
if MB > 32767 :
|
||||
MB -= 65535
|
||||
MC = data[18] * 256 + data[19]
|
||||
if MC > 32767 :
|
||||
MC -= 65535
|
||||
MD = data[20] * 256 + data[21]
|
||||
if MD > 32767 :
|
||||
MD -= 65535
|
||||
|
||||
time.sleep(self.SMBUS_DELAY)
|
||||
|
||||
# BMP180 address, 0x77(119)
|
||||
# Select measurement control register, 0xF4(244)
|
||||
# 0x2E(46) Enable temperature measurement
|
||||
bus.write_byte_data(0x77, 0xF4, 0x2E)
|
||||
|
||||
time.sleep(self.SMBUS_DELAY)
|
||||
|
||||
# BMP180 address, 0x77(119)
|
||||
# Read data back from 0xF6(246), 2 bytes
|
||||
# temp MSB, temp LSB
|
||||
data = bus.read_i2c_block_data(0x77, 0xF6, 2)
|
||||
|
||||
# Convert the data
|
||||
temp = data[0] * 256 + data[1]
|
||||
|
||||
# BMP180 address, 0x77(119)
|
||||
# Select measurement control register, 0xF4(244)
|
||||
# 0x74(116) Enable pressure measurement, OSS = 1
|
||||
bus.write_byte_data(0x77, 0xF4, 0x74)
|
||||
|
||||
time.sleep(self.SMBUS_DELAY)
|
||||
|
||||
# BMP180 address, 0x77(119)
|
||||
# Read data back from 0xF6(246), 3 bytes
|
||||
# pres MSB1, pres MSB, pres LSB
|
||||
data = bus.read_i2c_block_data(0x77, 0xF6, 3)
|
||||
|
||||
rv[self.KEY_TIME] = int(time.time())
|
||||
|
||||
# Convert the data
|
||||
pres = ((data[0] * 65536) + (data[1] * 256) + data[2]) / 128
|
||||
# Callibration for Temperature
|
||||
X1 = (temp - AC6) * AC5 / 32768.0
|
||||
X2 = (MC * 2048.0) / (X1 + MD)
|
||||
B5 = X1 + X2
|
||||
rv[self.KEY_TEMPERATURE] = ((B5 + 8.0) / 16.0) / 10.0
|
||||
|
||||
# Calibration for Pressure
|
||||
B6 = B5 - 4000
|
||||
X1 = (B2 * (B6 * B6 / 4096.0)) / 2048.0
|
||||
X2 = AC2 * B6 / 2048.0
|
||||
X3 = X1 + X2
|
||||
B3 = (((AC1 * 4 + X3) * 2) + 2) / 4.0
|
||||
X1 = AC3 * B6 / 8192.0
|
||||
X2 = (B1 * (B6 * B6 / 2048.0)) / 65536.0
|
||||
X3 = ((X1 + X2) + 2) / 4.0
|
||||
B4 = AC4 * (X3 + 32768) / 32768.0
|
||||
B7 = ((pres - B3) * (25000.0))
|
||||
pressure = 0.0
|
||||
if B7 < 2147483648:
|
||||
pressure = (B7 * 2) / B4
|
||||
else :
|
||||
pressure = (B7 / B4) * 2
|
||||
X1 = (pressure / 256.0) * (pressure / 256.0)
|
||||
X1 = (X1 * 3038.0) / 65536.0
|
||||
X2 = ((-7357) * pressure) / 65536.0
|
||||
rv[self.KEY_PRESSURE] = (pressure + (X1 + X2 + 3791) / 16.0) / 100
|
||||
|
||||
return rv
|
||||
else:
|
||||
time.sleep(3 * self.SMBUS_DELAY)
|
||||
return {
|
||||
self.KEY_PRESSURE: 1717.,
|
||||
self.KEY_TEMPERATURE: 17.17,
|
||||
self.KEY_TIME: int(time.time())
|
||||
}
|
||||
|
||||
12
dht.py
12
dht.py
@ -19,7 +19,7 @@ else:
|
||||
from . import DEBUG
|
||||
|
||||
class dht_22(background_task):
|
||||
RUN_SLEEP_TIME = 2.0
|
||||
RUN_SLEEP_TIME = 4.0
|
||||
MIN_REFRESH_RATE = RUN_SLEEP_TIME
|
||||
KEY_TEMPERATURE = 'temperature'
|
||||
KEY_HUMIDITY = 'humidity'
|
||||
@ -43,15 +43,15 @@ class dht_22(background_task):
|
||||
# check data
|
||||
if self.__temp_monitor__.process(data[self.KEY_TEMPERATURE], data[self.KEY_TIME]) and self.__hum_monitor__.process(data[self.KEY_HUMIDITY], data[self.KEY_TIME]):
|
||||
#
|
||||
logger.debug('DHT-Communication: Successfully: %s', repr(data))
|
||||
logger.info('DHT-Communication successful: %s', repr(data))
|
||||
self.__monitor__.process(data)
|
||||
if self.__data_callback__ is not None:
|
||||
self.__data_callback__(**data)
|
||||
if self.__monitor__.status():
|
||||
logger.warning("DHT measurement stopped caused by too many identical values!")
|
||||
logger.warning("DHT-Communication failed: Measurement stopped caused by suspicious constant values!")
|
||||
self.close()
|
||||
else:
|
||||
logger.warning("DHT-Gradient to high: Ignoring data %s!", repr(data))
|
||||
logger.debug("DHT-Communication failed: Gradient to high. Ignoring data %s!", repr(data))
|
||||
|
||||
|
||||
|
||||
@ -69,7 +69,7 @@ class dht_22(background_task):
|
||||
time.sleep(self.RUN_SLEEP_TIME)
|
||||
except RuntimeError as error:
|
||||
# Errors happen fairly often, DHT's are hard to read, just keep going
|
||||
logger.debug('DHT-Communication: ' + error.args[0])
|
||||
logger.debug('DHT-Communication failed: ' + error.args[0])
|
||||
time.sleep(2.0)
|
||||
except Exception as error:
|
||||
self.__dht_device__.exit()
|
||||
@ -127,8 +127,6 @@ class dht_22_monitor(object):
|
||||
else:
|
||||
self.__init_statevars__()
|
||||
if self.__max_const_measurements__ > self.__max_const_treshold__:
|
||||
if not self.__fail__:
|
||||
logger.warning("DHT measurement values are suspicious constant!")
|
||||
self.__fail__ = True
|
||||
|
||||
def status(self):
|
||||
|
||||
Loading…
x
Reference in New Issue
Block a user