def test_lcd():
print('Testing LCD...')
lcd = LCD()
lcd.text('Works', 1)
ans = input('Is Works printed on the LCD? y/n: ')
lcd.clear()
return ans == 'y'
def customCallback(client, userdata, message):
payload = json.loads(message.payload)
if payload["deviceID"] == "CA2":
lcd = LCD()
lcd.clear()
takePic()
lcd.text('Time to eat', 1)
lcd.text('medicine', 2)
buzzerOn()
lcd.clear()
def lcd_display(text_list):
lcd = LCD()
print "displaying"
print text_list
try:
if 'clear' in text_list[0]:
lcd.clear()
else:
lcd.text(text_list[0], 1)
lcd.text(text_list[1], 2)
sleep(1)
except Exception:
lcd.clear()
class LCDScroller: def __init__(self): self.lcd = LCD(rows = 2) self.lcd.clear() self.internalclear() self.update_time = time.time() def text(self, text, line): print(text) self.lcd.text(text,line) line -= 1 self.index[line] = 0 self.texts[line] = text def update(self): if time.time() - self.update_time < 0.5: return self.update_time = time.time() line = 0 for txt in self.texts: text_len = len(txt) if text_len > 16: self.index[line] += 1 new_text = txt[self.index[line] : self.index[line] + 16] if self.index[line] + 17 > text_len: if len(new_text) <= 0: self.index[line] = 0 new_text = txt[0 : 16 - len(new_text)] else: new_text += ' ' + txt[0 : 16 - len(new_text)] self.lcd.text(new_text,line + 1) line += 1 def clear(self): self.lcd.clear() self.texts self.internalclear() def internalclear(self): self.texts = ['',''] self.index = [0,0]
# If card is the authorised card
if uid == [136, 4, 93, 174, 127] or uid == [8, 138, 147, 144, 129]:
message = {}
message["deviceid"] = "deviceid_1828034"
now = datetime.datetime.now()
message["datetimeid"] = now.isoformat()
message["rfid"] = 1
message["servo"] = 1
message["bot"] = 0
message["camera"] = 0
message["webcontrol"] = 0
my_rpi.publish("lockdata", json.dumps(message), 1)
lcd.text('Welcome', 1)
lcd.text('Home!', 2)
unlockDoor()
lcd.clear()
message = {}
message["deviceid"] = "deviceid_1828034"
now = datetime.datetime.now()
message["datetimeid"] = now.isoformat()
message["rfid"] = 0
message["servo"] = 0
message["bot"] = 0
message["camera"] = 0
message["webcontrol"] = 0
my_rpi.publish("lockdata", json.dumps(message), 1)
else:
message = {}
message["deviceid"] = "deviceid_1828034"
now = datetime.datetime.now()
message["datetimeid"] = now.isoformat()
def pillSchedule():
try:
# Setting up the pin for the dht sensor, the buzzer and motion sensor
pin = 4
bz = Buzzer(5)
pir = MotionSensor(26, sample_rate=20, queue_len=1)
# To setup the certificate etc for mqtt
host = "acway7h5aefsa-ats.iot.us-east-1.amazonaws.com"
rootCAPath = "getEnvironmentCert/rootca.pem"
certificatePath = "getEnvironmentCert/certificate.pem.crt"
privateKeyPath = "getEnvironmentCert/private.pem.key"
# Set the filename and bucket name
BUCKET = 'sp-p1726819-s3-bucket'
location = {'LocationConstraint': 'us-east-1'}
file_path = "/home/pi/labs/assignment/photo"
file_name = "user.jpg"
my_rpi = AWSIoTMQTTClient("PubSub-p1726819" + rand_str_gen())
my_rpi.configureEndpoint(host, 8883)
my_rpi.configureCredentials(rootCAPath, privateKeyPath,
certificatePath)
my_rpi.configureOfflinePublishQueueing(
-1) # Infinite offline Publish queueing
my_rpi.configureDrainingFrequency(2) # Draining: 2 Hz
my_rpi.configureConnectDisconnectTimeout(10) # 10 sec
my_rpi.configureMQTTOperationTimeout(5) # 5 sec
# Connect and subscribe to AWS IoT
my_rpi.connect()
update = True
while update:
try:
global medicine_time
data = get_data_from_dynamodb(1, 'pillSchedule', -1)
medicine_time = data
global medicine_time_plus
medicine_time_plus = datetime.datetime.strptime(
medicine_time, "%H:%M:%S")
medicine_time_plus += datetime.timedelta(0, 60)
medicine_time_plus = medicine_time_plus.strftime("%H:%M:%S")
# Get the current time now and check if it is the time specified
now = datetime.datetime.now()
time_string = now.strftime("%H:%M:%S")
if (medicine_time_plus > time_string > medicine_time):
# Alert the user by turning on the buzzer
bz.on()
print("Time to eat medicine")
# Print on the LCD to tell the user to take med
lcd = LCD()
lcd.text('Time to eat', 1)
lcd.text('medicine :)', 2)
# Checking how long did the user take to take the medicine after buzzer on
old_now = datetime.datetime.now().strftime("%H:%M:%S")
start_dt = datetime.datetime.strptime(old_now, '%H:%M:%S')
pir.wait_for_motion(
10) # Motion sensor will only wait for 10 seconds
new_now = datetime.datetime.now()
new_time = new_now.strftime("%H:%M:%S")
end_dt = datetime.datetime.strptime(new_time, '%H:%M:%S')
duration = (end_dt - start_dt)
diff = int(duration.seconds)
# If the user took more than 10 seconds it means that the user did not take the medicine on time
if diff < 8:
# Take a photo and store to S3
takePhoto(file_path, file_name)
uploadToS3(file_path, file_name, BUCKET, location)
ageLow = 0
ageHigh = 0
# Print the deteced face attribute
print('Detected faces for')
for faceDetail in detect_faces(BUCKET, file_name):
ageLow = faceDetail['AgeRange']['Low']
ageHigh = faceDetail['AgeRange']['High']
print('Age between {} and {} years old'.format(
ageLow, ageHigh))
print('Here are the other attributes:')
print(
json.dumps(faceDetail,
indent=4,
sort_keys=True))
# To ensure that the medicine is taken by elderly and not others (Kids or pets)
if (ageLow < 20 < ageHigh):
# The medicine is taken in less than 10 seconds, turn off buzzer
lcd.text('Medicine taken', 1)
lcd.text('successfully :)', 2)
print("User ate medicine after {:.2f} seconds".
format(diff))
bz.off()
# Get the current date and time and insert the data into the database
True_string = 'True'
message = {}
message["deviceID"] = "CA2"
message["datetimeID"] = new_now.isoformat()
message["takenOnTime"] = True_string
my_rpi.publish("sensor/takeMed",
json.dumps(message), 1)
# Clear LCD
print("Uploaded data to database")
print("Waiting for next schedule")
lcd.clear()
sleep(60)
# The medicine is not taken by elderly
else:
bz.off()
print("Medicine not taken by patient")
# Send a msg to the user telling that the patient did not take medicine on time
send_user_Msg("Medicine not taken by patient")
# Get the current date and time and insert into the database
False_string = 'False'
message = {}
message["deviceID"] = "CA2"
message["datetimeID"] = new_now.isoformat()
message["takenOnTime"] = False_string
my_rpi.publish("sensor/takeMed",
json.dumps(message), 1)
# Clear LCD
print("Uploaded data to database")
print("Waiting for next schedule")
lcd.clear()
sleep(60)
else:
# The user did not take medicine within 10 seconds
bz.off()
print("Patient did not take medicine on time")
# Send a msg to the user telling that the patient did not take medicine on time
send_user_Msg("User did not eat medicine on time")
# Get the current date and time and insert into the database
False_string = 'False'
message = {}
message["deviceID"] = "CA2"
message["datetimeID"] = new_now.isoformat()
message["takenOnTime"] = False_string
my_rpi.publish("sensor/takeMed", json.dumps(message),
1)
# Clear LCD
print("Uploaded data to database")
print("Waiting for next schedule")
lcd.clear()
sleep(60)
except KeyboardInterrupt:
update = False
except:
print("Error while inserting data...")
print(sys.exc_info()[0])
print(sys.exc_info()[1])
except:
print(sys.exc_info()[0])
print(sys.exc_info()[1])
my_rpi = AWSIoTMQTTClient("basicPubSub")
my_rpi.configureEndpoint(host, 8883)
my_rpi.configureCredentials(rootCAPath, privateKeyPath, certificatePath)
my_rpi.configureOfflinePublishQueueing(-1) # Infinite offline Publish queueing
my_rpi.configureDrainingFrequency(2) # Draining: 2 Hz
my_rpi.configureConnectDisconnectTimeout(10) # 10 sec
my_rpi.configureMQTTOperationTimeout(5) # 5 sec
# Connect and subscribe to AWS IoT
my_rpi.connect()
my_rpi.subscribe("smartgarden/readings", 1, customCallback)
lcd.text(" SMART GARDEN ", 1)
lcd.text("* 환영합니다 *", 2)
sleep(2)
lcd.clear()
# Publish to the same topic in a loop forever
loopCount = 0
while True:
temp = float(ser.readline())
hum = float(ser.readline())
soil = int(ser.readline())
light = int(ser.readline())
lcd.text('Humidity: {:.2f}%'.format(hum), 1)
lcd.text('Temp: {:.2f} C'.format(temp), 2)
sleep(2)
lcd.clear()
lcd.text('Moisture: {:d}'.format(soil), 1)
