Tanay Shah
Published

COVID-19 Crisis- Fever Alert System

Say NO to people having FEVER in your House

IntermediateFull instructions provided2 hours250
COVID-19 Crisis- Fever Alert System

Things used in this project

Hardware components

Bolt WiFi Module
Bolt IoT Bolt WiFi Module
×1
LED (generic)
LED (generic)
×2
Temperature Sensor
Temperature Sensor
×1
Jumper wires (generic)
Jumper wires (generic)
×6
USB-A to Mini-USB Cable
USB-A to Mini-USB Cable
×1
Breadboard (generic)
Breadboard (generic)
×1

Software apps and online services

Bolt Cloud
Bolt IoT Bolt Cloud
Jupyter Notebook
Jupyter Notebook
SMS Messaging API
Twilio SMS Messaging API

Hand tools and fabrication machines

Tape, Electrical
Tape, Electrical

Story

Read more

Schematics

Circuit Diagram

Connection

Code

Code for Fever Alert System

Python
                       #Project: Fever Detection and Alert System
#Import the Required Libraries

from boltiot import Sms,Bolt #Libraries required to connect with Bolt Wifi Module
import requests 
import json
import time

API_KEY = "fd465422-3314-4caa-b0d8-b6e98904ee70"   # Bolt API Key
DEVICE_ID = "BOLT290463" # Bolt Device ID
SID = 'ACfc13e22ac23ff6ec4c26939640a49171' # Twilio Account SID
AUTH_TOKEN = 'f4c13e833bb6b6d9a85b59883092f7c0' #Twilio Auth Token
FROM_NUMBER = '+12057721243' # Twilio Trial Number
TO_NUMBER = '+919870099444' #Your own mobile number
threshold = 380                    


mybolt = Bolt(API_KEY,DEVICE_ID)
sms = Sms(SID, AUTH_TOKEN, TO_NUMBER, FROM_NUMBER)

#Function for reading sensor value from Bolt Wifi Module
def get_sensor_value_from_pin(pin): 
    """Returns the sensor value. Returns -999 if request fails"""
    try:
        response = mybolt.analogRead(pin)
        data = json.loads(response)
        if data["success"] != 1:
            print("Request not successfull")
            print("This is the response->", data)
            return -999
        sensor_value = int(data["value"])
        return sensor_value
    except Exception as e:
        print("Something went wrong when returning the sensor value")
        print(e)
        return -999
    

while True:
    print("*******************************")
    print("Loop Starting")
    mybolt.digitalWrite("2","HIGH") # Both buzzer and led will be 'ON' which  
    mybolt.digitalWrite("1","HIGH") # indicate that the loop has started and you
    time.sleep(0.5)                 # need to place the temperature sensor 
    mybolt.digitalWrite("2","LOW")  # between your arms
    mybolt.digitalWrite("1","LOW")
    print("Reading time 15 secs") # Read the temperature of your body for 15 sec
    time.sleep(15)
    sensor_value = get_sensor_value_from_pin("A0")
    print(sensor_value)
    
    if(sensor_value > threshold): # true, means the Person has fever
        print("Making request to Twilio to send a SMS")
        response = sms.send_sms("Alert! The Person has fever. Body temperure is" + "{:.2f}".format(sensor_value*100/1024) + "°C. Don't let him enter the House")#sending message
        print("Response received from Twilio is: " + str(sensor_value))
        mybolt.digitalWrite("2","HIGH") 
        time.sleep(4)                    # Buzzer will be 'ON' for 4 seconds
        mybolt.digitalWrite("2","LOW")
        
    # true, means the person is safe
    else: 
        print("Making request to Twilio to send a SMS")
        response = sms.send_sms("Don't worry, the Person is Safe. Body temperature is "+ "{:.2f}".format(sensor_value*100/1024) + "°C. You may let him enter the House")#sending message
        print("Response received from Twilio is: " + str(sensor_value))
        mybolt.digitalWrite("1","HIGH")
        time.sleep(4)                   # LED will GLOW for 4 seconds
        mybolt.digitalWrite("1","LOW")
        
        for _ in range(5): #buzzer will 'ON' and 'OFF' 5 times which indicate 
            mybolt.digitalWrite("2","HIGH") #that the loop is over
            time.sleep(0.5)
            mybolt.digitalWrite("2","LOW")
    print("next cycle will start in 5 secs") # next cycle to test next person
    print("*******************************")
    time.sleep(5)

Credits

Tanay Shah

Tanay Shah

1 project • 0 followers

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