def init_mashing(batch):
# (Re)set defaults for batch
set_batch_defaults(batch)
set_variable('active_mashingprocess_batch_id', str(batch.id))
# Initialize Arduino with Nanpy
if not settings.ARDUINO_SIMULATION:
sensor = DallasTemperature(ARDUINO_TEMPERATURE_PIN)
addr = sensor.getAddress(ARDUINO_TEMPERATURE_PIN)
Arduino.pinMode(ARDUINO_HEAT_PIN, Arduino.OUTPUT)
Arduino.pinMode(ARDUINO_COOL_PIN, Arduino.OUTPUT)
Arduino.pinMode(ARDUINO_STATUS_PIN, Arduino.OUTPUT)
Arduino.digitalWrite(ARDUINO_HEAT_PIN, Arduino.LOW)
Arduino.digitalWrite(ARDUINO_COOL_PIN, Arduino.LOW)
Arduino.digitalWrite(ARDUINO_STATUS_PIN, Arduino.HIGH)
else:
# Set initial dummy temperature
batch.temperature = 20 # Testing purpose only
batch.save()
batch = Batch.objects.get(id=batch.id)
# Run Mashing proces
while get_variable('active_mashingprocess_batch_id', 'None') == str(batch.id):
# Measure data
measured_data = {}
if settings.ARDUINO_SIMULATION:
measured_data['temp'] = get_dummy_temperature(batch)
else:
sensor.requestTemperatures()
measured_data['temp'] = sensor.getTempC(addr)
# Define actions depending on measured data
batch = process_measured_data(batch.id, measured_data)
# Send updates to arduino
if not settings.ARDUINO_SIMULATION:
send_updates_to_arduino(batch)
# Send to logging department
handle_logging(batch)
# Delay
sleep(DELAY_BETWEEN_MEASUREMENTS)
Arduino.digitalWrite(ARDUINO_STATUS_PIN, Arduino.LOW)
Arduino.digitalWrite(ARDUINO_COOL_PIN, Arduino.LOW)
Arduino.digitalWrite(ARDUINO_HEAT_PIN, Arduino.LOW)
return 'Mashing proces ended'
class TemperatureSensor(Sensor):
def __init__(self,
pin,
name='TemperatureHumiditySensor',
key=None,
connection=default_connection,
redis_conn=None):
super().__init__(pin,
name=name,
key=key,
connection=connection,
redis_conn=redis_conn)
return
def init_sensor(self):
self.sensors = DallasTemperature(self.pin, connection=self.connection)
self.sensor_bus = self.sensors.getDeviceCount()
# read data using pin specified pin
Logger.log(LOG_LEVEL["debug"], "There are", self.sensor_bus,
"devices connected on pin ", self.sensors.pin)
self.addresses = []
for i in range(self.sensor_bus):
self.addresses.append(self.sensors.getAddress(i))
Logger.log(LOG_LEVEL["debug"], "Their addresses", self.addresses)
#I guess this is something with bit rates? TODO: Look this up
self.sensors.setResolution(10)
#sensor = id of sensor you want in addresses[]
def read(self):
#temp = self.sensors.getTempF(sensor)
#self.r.set('temp_'+str(sensor), temp)
#return temp
return self.readAll()
def readAll(self):
self.sensors.requestTemperatures()
temps = {}
for i in range(self.sensor_bus):
temp = self.sensors.getTempC(i)
temps['temp_' + str(i)] = temp
#self.r.set(self.key+'_'+str(i), temp)
#print("Device %d (%s) " % (i, self.addresses[i]))
#print("Let's convert it in Fahrenheit degrees: %0.2f" % DallasTemperature.toFahrenheit(temp))
self.r.set(self.key, temps)
return temps
class TemperatureSensor(Service):
def on_init(self):
self.communicator.listen()
print 'init'
print self.params['tp1']
self.sensors = DallasTemperature(self.params['tp1'])
def on_shutdown(self):
pass
def on_process(self):
self.sensors.requestTemperatures(0)
addr = self.sensors.getAddress(0)
temp = self.sensors.getTempC(addr)
print temp
self.communicator.send(str(temp))
time.sleep(5)
from nanpy import DallasTemperature, SerialManager
device = '/dev/cu.usbmodem1411'
connection = SerialManager(device=device)
connection.open()
sensors = DallasTemperature(connection=connection, pin=2)
n_sensors = sensors.getDeviceCount()
print("There are %d devices connected on pin %d" % (n_sensors, sensors.pin))
addresses = []
for i in range(n_sensors):
addresses.append(sensors.getAddress(i))
sensors.setResolution(12)
while True:
sensors.requestTemperatures()
for i in range(n_sensors):
temp = sensors.getTempC(i)
print("Device %d (%s) temperature, in Celsius degrees is %0.2f" % (i, addresses[i], temp))
print("Let's convert it in Fahrenheit degrees: %0.2f" % DallasTemperature.toFahrenheit(temp))
print("\n")
#!/usr/bin/env python
# Author: Andrea Stagi <*****@*****.**>
# Description: just a test for DallasTemperature
# Dependencies: None
from nanpy import DallasTemperature
sensors = DallasTemperature(5)
while True:
print("There are %d devices connected on pin %d" %
(sensors.getDeviceCount(), sensors.pin))
sensors.requestTemperatures(0)
addr = sensors.getAddress(0)
temp = sensors.getTempC(addr)
print("The temperature, in Celsius degrees is %0.2f" % temp)
print("Let's convert it in Fahrenheit degrees: %0.2f" %
DallasTemperature.toFahrenheit(temp))
#!/usr/bin/env python
# Author: Andrea Stagi <*****@*****.**>
# Description: just a test for DallasTemperature
# Dependencies: None
from nanpy import DallasTemperature
sensors = DallasTemperature(5)
print("There are %d devices connected on pin %d" % (sensors.getDeviceCount(), sensors.pin))
addr = sensors.getAddress(0)
sensors.setResolution(9)
while True:
sensors.requestTemperatures(0)
temp = sensors.getTempC(addr)
print("The temperature, in Celsius degrees is %0.2f" % temp)
print("Let's convert it in Fahrenheit degrees: %0.2f" % DallasTemperature.toFahrenheit(temp))
from nanpy import DallasTemperature, SerialManager
device = '/dev/cu.usbmodem1411'
connection = SerialManager(device=device)
connection.open()
sensors = DallasTemperature(connection=connection, pin=2)
n_sensors = sensors.getDeviceCount()
print("There are %d devices connected on pin %d" % (n_sensors, sensors.pin))
addresses = []
for i in range(n_sensors):
addresses.append(sensors.getAddress(i))
sensors.setResolution(12)
while True:
sensors.requestTemperatures()
for i in range(n_sensors):
temp = sensors.getTempC(i)
print("Device %d (%s) temperature, in Celsius degrees is %0.2f" %
(i, addresses[i], temp))
print("Let's convert it in Fahrenheit degrees: %0.2f" %
DallasTemperature.toFahrenheit(temp))
print("\n")