def read_sensors():
global session, date_time, lat, lon, temp, humid
try:
report = session.next()
# Wait for a 'TPV' report and display the current time
# To see all report data, uncomment the line below
if report['class'] == 'TPV':
if hasattr(report, 'time'):
#print 'time\t\t', report.time
date_time = report.time
if hasattr(report, 'lat'):
#print 'latitude\t', report.lat
lat = report.lat
if hasattr(report, 'lon'):
#print 'longitude\t', report.lon
lon = report.lon
#print 'temperature\t', htu.read_temperature()
#print 'humidity\t', htu.read_humidity()
temp = htu.read_temperature()
humid = htu.read_humidity()
path_writer.writerow([date_time, lat, lon, temp, humid])
except KeyError:
pass
except StopIteration:
session = None
print "GPSD has terminated"
def read_sensors():
global session, date_time, lat, lon, temp, humid
try:
report = session.next()
# Wait for a 'TPV' report and display the current time
# To see all report data, uncomment the line below
if report['class'] == 'TPV':
if hasattr(report, 'time'):
#print 'time\t\t', report.time
date_time = report.time
if hasattr(report, 'lat'):
#print 'latitude\t', report.lat
lat = report.lat
if hasattr(report, 'lon'):
#print 'longitude\t', report.lon
lon = report.lon
#print 'temperature\t', htu.read_temperature()
#print 'humidity\t', htu.read_humidity()
temp = htu.read_temperature()
humid = htu.read_humidity()
path_writer.writerow([date_time, lat, lon, temp, humid])
except KeyError:
pass
except StopIteration:
session = None
print "GPSD has terminated"
def prog(filename="/home/pi/data/htu21df.log", sleeptime=3600): while True: # reset sensor and collect data for next log entry. HTU21DF.htu_reset temperature = HTU21DF.read_temperature() humidity = HTU21DF.read_humidity() cur_date = datetime.date.today() cur_time = time.time() data = [cur_date, cur_time, temperature, humidity] # save new data entry write_to_log(filename, data) # sleep until ready to collect next measurements. time.sleep(sleeptime)
def prog(filename="/home/pi/data/htu21df.log", sleeptime=3600):
while True:
# reset sensor and collect data for next log entry.
HTU21DF.htu_reset
temperature = HTU21DF.read_temperature()
humidity = HTU21DF.read_humidity()
cur_date = datetime.date.today()
cur_time = time.time()
data = [cur_date, cur_time, temperature, humidity]
# save new data entry
write_to_log(filename, data)
# sleep until ready to collect next measurements.
time.sleep(sleeptime)
def prog(filename="/home/pi/behaviorRoomEnv.log", sleeptime=600):
while True:
# reset sensor and collect data for next log entry.
temp = tempsensor.readTempC()
humidity = HTU21DF.read_humidity()
tempPres = MPL3115A2.pressure()
lux = readLux()
## calculate average lux for 100 readings
datetime = strftime("%Y-%m-%d\t%H:%M:%S")
data = [datetime, temp, humidity, tempPres[1], lux]
# save new data entry
write_to_log(filename, data)
# sleep until ready to collect next measurements.
time.sleep(sleeptime)
def sensorReadingProcess(logfileLock, filename, sleeptime):
while True:
# reset sensor and collect data for next log entry.
# TODO: Make this section of code resistant to hardware failures by inserting "nil" values for missing data when appropriate
temp = tempsensor.readTempC()
humidity = HTU21DF.read_humidity()
tempPres = MPL3115A2.pressure()
lux = readLux()
## calculate average lux for 100 readings
datetime = strftime("%Y-%m-%d\t%H:%M:%S")
data = [datetime, temp, humidity, tempPres[1], lux]
# save new data entry, blocking I/O operation
logfileLock.acquire()
write_to_log(filename, data)
logfileLock.release()
# sleep until ready to collect next measurements.
time.sleep(sleeptime)
def prog(filename):
# reset sensor and collect data.
# reset sensor and collect data. temp=tempsensor.readTempC()
HTU21DF.htu_reset
humidity = HTU21DF.read_humidity()
temp1 = HTU21DF.read_temperature()
barometer = BMP085.BMP085(mode=BMP085.BMP085_ULTRAHIGHRES)
pressure = barometer.read_pressure()
temp2 = barometer.read_temperature()
temp = (temp1 + temp2) / 2
lux = readLux()
datetime = strftime("%Y-%m-%d\t%H:%M:%S")
data = [datetime, temp, humidity, pressure, lux]
# savenewdataentry
write_to_log(filename, data)
hour = strftime("%H")
if float(hour) < 7:
write_lux("/home/pi/lux.csv", lux)
def prog(filename):
err = 0
try:
print("Reading humidity")
HTU21DF.htu_reset
humidity = HTU21DF.read_humidity()
temp1 = HTU21DF.read_temperature()
time.sleep(5)
except:
print("Failed")
humidity = "NA"
temp1 = 0
err = 1
try:
print("Reading the barometer")
barometer = BMP085.BMP085(mode=BMP085.BMP085_ULTRAHIGHRES)
pressure = barometer.read_pressure()
temp2 = barometer.read_temperature()
time.sleep(5)
except:
print("Failed")
pressure = "NA"
temp2 = 0
err = 1
if (temp1 == 0 or temp2 == 0):
temp = temp1 + temp2
else:
temp = (temp1 + temp2) / 2
try:
print("Reading Lux level")
lux = readLux()
time.sleep(5)
except:
print("Failed")
lux = ""
err = 1
datetime = strftime("%Y-%m-%d\t%H:%M:%S")
data = [datetime, temp, humidity, pressure, lux]
# savenewdataentry
write_to_log(filename, data)
hour = strftime("%H")
if int(hour) < 7:
write_lux("/home/pi/lux.csv", lux)
return err
def prog(filename):
err=0
try:
print ("Reading humidity")
HTU21DF.htu_reset
humidity=HTU21DF.read_humidity()
temp1=HTU21DF.read_temperature()
time.sleep(5)
except:
print ("Failed")
humidity="NA"
temp1=0
err=1
try:
print ("Reading the barometer")
barometer = BMP085.BMP085(mode=BMP085.BMP085_ULTRAHIGHRES)
pressure=barometer.read_pressure()
temp2=barometer.read_temperature()
time.sleep(5)
except:
print ("Failed")
pressure="NA"
temp2=0
err=1
if (temp1==0 or temp2==0):
temp=temp1+temp2
else:
temp=(temp1+temp2)/2
try:
print ("Reading Lux level")
lux=readLux()
time.sleep(5)
except:
print ("Failed")
lux=""
err=1
datetime=strftime("%Y-%m-%d\t%H:%M:%S")
data=[datetime,temp,humidity,pressure,lux]
# savenewdataentry
write_to_log(filename,data)
hour=strftime("%H")
if int(hour) < 7:
write_lux("/home/pi/lux.csv",lux)
return err
def ReadSensors():
global measuredTemp
global measuredHumidity
global reportCount
global reportEvery
measuredTemp = HTU21DF.read_temperature()
measuredHumidity = HTU21DF.read_humidity()
displayValues(
str(round(measuredTemp, 1)) + " deg C",
str(round(measuredHumidity, 1)) + " %")
if (reportCount == reportEvery):
# Send data to the web service
reqString = 'http://api.marc-jennings.co.uk/InsecureUploadOfData.php?temperature=' + str(
measuredTemp) + '&humidity=' + str(measuredHumidity)
req = urllib2.Request(reqString)
resp = urllib2.urlopen(req)
reportCount = reportCount + 1
if (reportCount > reportEvery):
reportCount = 1
# A simple program to test the driver
import time
import HTU21DF
while True:
print("sending reset...")
HTU21DF.htu_reset
temperature = HTU21DF.read_temperature()
print("The temperature is %f C." % temperature)
time.sleep(1)
humidity = HTU21DF.read_humidity()
print("The humidity is %F percent." % humidity)
time.sleep(1)
def getHumidity(temperature):
tempList = []
for x in range(50):
HTU21DF.htu_reset
tempList.append(HTU21DF.read_humidity(temperature))
return median(tempList)
def read_values(self):
logging.info('Performing measurement ...')
self._temperature = HTU21DF.read_temperature()
self._humidity = HTU21DF.read_humidity()
logging.info('Got measurement: temperature: {}, humidity: {}'.format(
self._temperature, self._temperature))
