def get_sensors():
"""Description goes here"""
# Setup FogPi
fog = Fogpi()
lcd_queue.put("Showing humidity\nWater sensor ", True)
lcd_queue.join()
# Loop to get data from the HIH-6130 sensor
keep_looping = True
i = 0
while keep_looping:
i += 1
#
if i % 20 == 0:
water = fog.get_H2O()
sta, hum, tempout = hih613.hih6130()
# Put the sensor data into a dictionary
dict = {"field1": hum, "field2": tempout, "field3": water}
output = "H:{}% T:{}{}C\nH2O: {} ".format(dict["field1"], dict["field2"], chr(223), dict["field3"])
lcd_queue.put(output, True)
lcd_queue.join()
i = 0
# Every 100 milliseconds, read the switches
press = read_buttons()
# Take action on switch press
# SELECT button = exit
if press == SELECT:
keep_looping = False
lcd_queue.put("Press SELECT to \n view menu ", True)
lcd_queue.join()
delay_milliseconds(99)
sys.stdout.write("\r"+data.__str__())
sys.stdout.flush()
def print_data(my_dict):
for key, value in sorted(my_dict.items()):
if key != 'key':
print key, value
print "\n"
print ("Starting script...%s") % (datetime.now())
while True:
try:
# from the HIH-6130 sensor
sta, hum, tempout = hih613.hih6130()
# Make dictionary of the items to send to ThingSpeak.com
dict = { 'field1': hum, 'field2': tempout, 'key': tskey }
ThingSpeak.doit(dict)
output = "Hum: %s, Temp: %s" % (dict['field1'], dict['field2'])
Printer(output)
if hum >= cutoff:
GPIO.output(i, GPIO.HIGH)
else:
GPIO.output(i, GPIO.LOW)
time.sleep(14)
def housekeeper():
try: # try to take a picture with the camera
camera.capture("/var/www/image.jpg")
except:
err = 1 + 1 # doesn't do anything, just needed some code inside except block
global solenoidstate
global lastopened
global lastclosed
global collectorstate
logger = logging.getLogger(__name__)
sta, hum, tempout = hih613.hih6130()
fog = Fogpi()
data_to_mySQL(hum=hum, tempout=tempout, water=rainsensor.rain, status=False)
if (
rainsensor.isRaining and hum >= 85 and solenoidstate == 0
): # if rain detected in polling period and humidity above 75%, try and turn on collector
logger.info(
"Humidity and rain threshold for big fan has been reached! Big fan firing (Hum= "
+ str(hum)
+ " rain frequency= "
+ str(rainsensor.rain)
+ ")"
)
lastopened = datetime.now().replace(microsecond=0)
collectorstate = True
fog.solenoid1()
fog.solenoid2()
solenoidstate = 1
time.sleep(1)
door1, door2 = fog.get_doors()
if (door1 == 0) or (door2 == 0): # if either door still closed, try and open them again
logger.info("One of the doors is still closed: Door1: " + str(door1) + " Door2: " + str(door2))
fog.solenoid1()
fog.solenoid2()
time.sleep(1)
door1, door2 = fog.get_doors()
if door1 and door2: # if both doors open, start fan
logger.info("Both doors are open and big fan is on")
fog.big_fan_on()
elif hum < 85: # if humidity is less than 75
if collectorstate == True: # if collector on turn off
print ("humidity has dropped below threshold, turning off")
collectorstate = False
lastclosed = datetime.now().replace(microsecond=0) # set time that collector was last deactivated
fog.big_fan_off()
solenoidstate = 0
print (
"Temp: "
+ str(tempout)
+ " Humidity: "
+ str(hum)
+ " Rain Count now: "
+ str(rainsensor.rain)
+ " this hour: "
+ str(rainsensor.hourrain)
)
# calls function which writes index.html to var/www when given the displayed variables
generate_page(
str(datetime.now().replace(microsecond=0)),
str(hum),
str(tempout),
str(rainsensor.hourrain),
str(lastopened),
str(lastclosed),
collectorstate,
str(rainsensor.rain),
)
threading.Timer(5, housekeeper).start() # recalls housekeeping in 5 seconds
def get_fog():
"""Description goes here"""
logger = logging.getLogger(__name__)
# Setup FogPi
fog = Fogpi()
housekeeper()
# humidity cutoff for turing big fan on
cutoff_bigfan = 75
# solenoid state will increment to 1 if there is water
solenoid_state = 0
lcd_queue.put("Starting fog \ncollector... ", True)
lcd_queue.join()
# Loop to get data from the HIH-6130 sensor
keep_looping = True
# keep looping counter, first pass of loop will take a reading
i = 19
# Fog detection logic
found_fog = "N"
previous = "N"
# LCD message logic
exit_message = False
little_fan_on = False
exit_message_counter = 0
exit_message_limit = 3 # 20 * .100 = 2 seconds, 3 loops = 6 seconds till timeout
water_detected = False
# mySQL control logic, first pass of loop will take record to the database
j = 599
while keep_looping:
i += 1
j += 1
# 2 second delay (or 200 msec)
if i % 20 == 0:
# Get value from the water sensor
water = fog.get_H2O()
# If there's water there must be fog!
sta, hum, tempout = hih613.hih6130()
# send the data to the mySQL database called collectfog
# the table is called sensors
if j % 600 == 0:
# puts data into the mySQL database... use phpmyadmin to get the data
# Set status to True if you want to see the sensor data printed out to the screen
# data_to_mySQL(hum=hum, tempout=tempout, water=water, status=False)
j = 0
"""
First checks if exit message is on, if it is
ensures that timeout hasn't happened yet.
If it has, unflag exit_message
"""
if exit_message:
exit_message_counter += 1
if exit_message_counter > exit_message_limit:
exit_message = False
exit_message_counter = 0
"""
If exit message is not printed, update output. Otherwise, ignore.
"""
if not exit_message:
# Put the sensor data into a dictionary
dict = {"field1": hum, "field2": tempout, "field3": water}
output = "H:%s%% T: %s%sC\nH2O: %s Fog: %s(%s)" % (
dict["field1"],
dict["field2"],
chr(223),
dict["field3"],
found_fog,
previous,
)
lcd_queue.put(output, True)
lcd_queue.join()
# Every 100 milliseconds, read the switches
press = read_buttons()
# Take action on switch press
# SELECT button = exit
if press == SELECT:
exit_message = True
lcd_queue.put("Press RIGHT to \n stop collector ", True)
lcd_queue.join()
if (press == RIGHT) and (exit_message):
lcd_queue.put("Press SELECT to \n view menu ", True)
lcd_queue.join()
# reset the GPIO's
GPIO.cleanup()
# end the loop and exit out to main menu
keep_looping = False
exit_message = False
little_fan_on = False
delay_milliseconds(99)