Published December 21, 2019

Smart Morning Alarm

This is an IoT project which is an alarm system which you cannot snooze or turn off. It senses that if you are present on the bed, it beeps.

IntermediateFull instructions provided1 hour5,569

Things used in this project

Hardware components

Bolt IoT Bolt WiFi Module

Arduino UNO

Buzzer

Ultrasonic Sensor - HC-SR04 (Generic)

Breadboard (generic)

Jumper wires (generic)

Software apps and online services

Snappy Ubuntu Core

Arduino IDE

Bolt IoT Bolt Cloud

Story

This is a project for Submission for the Online Training of Internet of Things and Machine Learning Course Offered by Bolt IOT.

My project is a Smart Morning Alarm system which uses an ultrasonic sensor to measure the distance. Just place the device in the side of the bed take one reading and put that limit in the program. Set the time when you want to wake up for e.g., you want to wake up at 4 a.m. so, min_time=4 and max_time=5. Once all the parameters have been set up the run the code.

I made this project because I am very lazy and because of this habit I get late everyday. Once the alarm beeps I snooze or turn off the alarm and sleep. So, to change this behaviour of mine I made this alarm system which I cannot snooze or turn off.

Arduino Code:

Arduino echo code

Python Code:

I have imported all the libraries needed and the limit is the distance b/w the wall and ultrasonic sensor. The limit can change and it depends where the sensor is placed. The max and min time is the time in b/w I need to wake up i.e., 4a.m. and 5 a.m. The max_time is taken because till 4:00a.m. - 4:59 a.m. the hour will be 4 only that is the current_hour in the program. Since it repeats the whole process after 10 seconds so, we need not to worry about getting late.

There is a buzzer which will beep once the condition is satisfied and it takes two input i.e., pin and value.

Once the condition for time is true then it reads the data transmitted by the Arduino to the Bolt via RX and TX pins and serialRead is the function which reads the data. After this we print the data and change it into integer value. There are two if statements, one is for the time and other is for distance. It takes the current hour and compares it with the time(i.e., max and min) and if it satisfies then it goes to next if statement. The second if statement compares the limit to the current distance and if the current distance is less than the limit, the buzzer beeps for 5 seconds and stops. Again after 10 seconds it repeats the whole process and keeps repeating itself.

The principle of working is that I as a person act as an object that disrupts the transmission. So, the distance reduces and It detects that you are still sleeping. Once you get out of bed then there would be no object in between the sensor and the wall therefore the second if condition doesn't satisfies.

OUTPUT:

Buzzer Action

Working of project

Code

#include <Ultrasonic.h>

/*
 * Ultrasonic Simple
 * Prints the distance read by an ultrasonic sensor in
 * centimeters. They are supported to four pins ultrasound
 * sensors (liek HC-SC04) and three pins (like PING)))
 * and Seeed Studio sesores).
 *
 * The circuit:
 * * Module HR-SC04 (four pins) or PING))) (and other with
 *   three pins), attached to digital pins as follows:
 * ---------------------    ---------------------
 * | HC-SC04 | Arduino |    | 3 pins  | Arduino |
 * ---------------------    ---------------------
 * |   Vcc   |   5V    |    |   Vcc   |   5V    |
 * |   Trig  |   12    | OR |   SIG   |   13    |
 * |   Echo  |   13    |    |   Gnd   |   GND   |
 * |   Gnd   |   GND   |    ---------------------
 * ---------------------
 * Note: You need not obligatorily use the pins defined above
 * 
 * By default, the distance returned by the distanceRead()
 * method is in centimeters, to get the distance in inches,
 * pass INC as a parameter.
 * Example: ultrasonic.distanceRead(INC)
 *
 * created 3 Apr 2014
 * by Erick Simões (github: @ErickSimoes | twitter: @AloErickSimoes)
 * modified 23 Jan 2017
 * by Erick Simões (github: @ErickSimoes | twitter: @AloErickSimoes)
 * modified 03 Mar 2017
 * by Erick Simões (github: @ErickSimoes | twitter: @AloErickSimoes)
 *
 * This example code is released into the MIT License.
 */



/*
 * Pass as a parameter the trigger and echo pin, respectively,
 * or only the signal pin (for sensors 3 pins), like:
 * Ultrasonic ultrasonic(13);
 */
Ultrasonic ultrasonic(12, 13);

void setup() {
  Serial.begin(9600);
  
  }

import conf, json, time
from boltiot import Bolt

limit=105     #This is distance b/w sensor and wall
max_time=20   
min_time=18

mybolt=Bolt(conf.bolt_api_key, conf.device_id)
response=mybolt.serialRead('10')
print(response)

def buzzer_action(pin, value):
  response=mybolt.digitalWrite(pin, value)
  
ticks=time.time() #gets the current time
ltime=time.localtime(ticks) #gets the local time
current_hour=ltime.tm_hour  #gets the current hour

while True:
  response=mybolt.serialRead('10')
  data=json.loads(response)
  distance= data['value'].rstrip()
  print("Distance:", distance)  #distance recieved from Arduino
  
  if(current_hour<max_time and current_hour>=min_time):
    print("Current Hour:", current_hour)
    if int(distance) < limit:   #If the person is sleeping then the distance will decrease
      print("Limit Exceeded || Buzzer Action")
      buzzer_action(1, "HIGH")    #buzzer beeps
      time.sleep(5)
      buzzer_action(1, "LOW")     #buzzer stops
      continue
    else:
      time.sleep(10)      #waits for 10 seconds
      continue
  time.sleep(10)    #waits for 10 second and again repeats all steps

Smart Morning Alarm

Things used in this project

Hardware components

Software apps and online services

Story

Arduino Code:

Python Code:

Schematics

Hardware Connections

Connections

Code

Arduino Code

Ultrasonic Python Code

Credits

Rodd shan

Comments

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Smart Morning Alarm

Smart Morning Alarm

Things used in this project

Hardware components

Software apps and online services

Story

Arduino Code:

Python Code:

Schematics

Hardware Connections

Connections

Code

Arduino Code

Ultrasonic Python Code

Credits

Rodd shan

Comments

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