class TempCollector(StatCollector):
def __init__(self):
self.window = Window()
self.name = 'temp'
self.file = settings.temp_file
os.system('modprobe w1-gpio')
os.system('modprobe w1-therm')
self.base_dir = '/sys/bus/w1/devices/'
self.device_folder = glob.glob(self.base_dir + '28*')[0]
self.device_file = self.device_folder + '/w1_slave'
def read_temp_raw(self):
with open(self.device_file, 'r') as f:
return f.readlines()
def collect(self, bus):
lines = self.read_temp_raw()
while lines[0].strip()[-3:] != 'YES':
time.sleep(0.2)
lines = self.read_temp_raw()
equals_pos = lines[1].find('t=')
if equals_pos != -1:
temp_string = lines[1][equals_pos+2:]
temp_c = float(temp_string) / 1000.0
temp_f = temp_c * 9.0 / 5.0 + 32.0
self.window.add(temp_f)
class LevelCollector(StatCollector):
def __init__(self):
self.window = Window()
self.name = 'level'
self.file = settings.level_file
def collect(self, bus):
bus.write_byte_data(DEVICE_ADDRESS, 0, 81)
sleep(.1)
distance = bus.read_word_data(DEVICE_ADDRESS, 2) / 255
min_distance = bus.read_word_data(DEVICE_ADDRESS, 4) / 255
self.window.add(distance)
def __init__(self):
self.window = Window()
self.name = 'temp'
self.file = settings.temp_file
os.system('modprobe w1-gpio')
os.system('modprobe w1-therm')
self.base_dir = '/sys/bus/w1/devices/'
self.device_folder = glob.glob(self.base_dir + '28*')[0]
self.device_file = self.device_folder + '/w1_slave'
class PHCollector(StatCollector):
def __init__(self):
self.window = Window()
self.name = 'ph'
self.file = settings.ph_file
def collect(self, bus):
#reload config...slower, but allows changes on teh fly
self.load()
bytes = bus.read_i2c_block_data(DEVICE_ADDRESS, 1)
hi = bytes[0]
lo = bytes[1]
adc_res = (hi * 256.0) + lo
ph = self.calculate_ph(adc_res)
self.window.add(ph)
def load(self):
with open(settings.ph_calibration, 'r') as f:
calibration = json.loads(f.read())
for key, value in calibration.iteritems():
setattr(self, key, value)
self.calculate_slope()
def calculate_slope(self):
self.ph_step = ((((self.v_ref * (self.ph7_cal - self.ph4_cal)) / 4096.0) * 1000.0) / self.op_amp_gain) / 3
def calculate_ph(self, res):
millivolts = (res / 4096.0) * self.v_ref * 1000.0
temp = ((((self.v_ref * self.ph7_cal) / 4096.0) * 1000.0) - millivolts) / self.op_amp_gain
ph = 7.0 - (temp / self.ph_step)
return ph
def __init__(self, parent=None):
QtGui.QWidget.__init__(self, parent)
# GUI
self.ui = Ui_MainUI()
self.ui.setupUi(self)
# GUI position
self.setGeometry(Window.centered_position(self.geometry()))
# DAO
#self.configDAO = ConfigDAO()
# Controllers
#self.propertiesBC = PropertiesBC()
# Signals
QtCore.QObject.connect(self.ui.pushButton, QtCore.SIGNAL("clicked()"), self.search)
def __init__(self, parent=None):
QtGui.QWidget.__init__(self, parent)
# GUI
self.ui = Ui_MainUI()
self.ui.setupUi(self)
# GUI position
self.setGeometry(Window.centered_position(self.geometry()))
# DAO
#self.configDAO = ConfigDAO()
# Controllers
#self.propertiesBC = PropertiesBC()
# Signals
QtCore.QObject.connect(self.ui.pushButton, QtCore.SIGNAL("clicked()"),
self.search)
def __init__(self):
self.window = Window()
self.name = 'level'
self.file = settings.level_file
def __init__(self):
self.window = Window()
self.name = 'ph'
self.file = settings.ph_file