Software Setup

Published August 13, 2020 © GPL3+

Contactless temperature using Bolt IoT

We need to change the way the temperature of the person is being checked during the pandemic. Let's make it a smart IoT device.

IntermediateFull instructions provided1 hour1,051

Things used in this project

Hardware components

Bolt IoT Bolt WiFi Module

Arduino UNO

apds-9960 proximity sensor

MLX90614 Contactless Temperature Sensor Module

ElectroPeak 0.96" OLED 64x128 Display Module

Adafruit NeoPixel Ring: WS2812 5050 RGB LED

LASER module

Buzzer

Software apps and online services

Arduino IDE

Bolt IoT Bolt Cloud

Online python compiler

Hand tools and fabrication machines

Soldering iron (generic)

Story

It's a little bit of old fashioned and backdated in theworld of growing technology to check individual body temp. using the regular infrared thermometer. Despite it is a backdated method, this regular method has mane cons. in its way.

So, I thought of changing the track by making a smart bolt IoT based contactless thermometer which can display the person's temperature in an OLED display with an RGB led indicating the condition of the person's temperature. Moreover, it can also inform the authorities if someone with abnormal body temperature is noted.

Contectless Bolt Thermometer

Hardware Setup

Now the sensor has to be joined properly with the Arduino to make the sensors communicate with it and to send data to the BOLT whenever it is necessary, for making it able to send the data to the authorities. The Fritzing breadboard diagram is as follows:

Contactless thermometer circuit

Software Setup:

Now to communicate with the sensors, OLED display, RGB led ring we need to install some libraries first. Let's go-ahead for the step of the individual sensor to communicate:-

Step 1:- Download the zip of the library:-

https://github.com/arduino-libraries/Arduino_APDS9960

https://github.com/adafruit/Adafruit-GFX-Library

https://github.com/adafruit/Adafruit-MLX90614-Library

https://github.com/adafruit/Adafruit_NeoPixel

https://github.com/adafruit/Adafruit_SSD1306

Step 2:- Export the libraries in the Arduino ideStep 3:- You are ready to go. :)

NOTE-

Sometimes the ide give some compilation error then you can try to upload these following libraries then it will surely do work as of me it worked.

https://github.com/olikraus/u8g2

https://github.com/olikraus/u8glib

The Arduino code helps the IR temp. sensor MLX90614 to measure the temperature of a person standing in a certain distance(measured by the proximity sensor APS9960) and light up the led and buzzer according to the need also sends the data to the Bolt module.

A Python Script (running on a server or your PC, for instance) queries the Bolt Module for the digital pin input for and data sent from Arduino using the Bolt Python Library, which in turn is based on the Bolt open APIs for Digital Read.

The Python script then checks if the digital pin is high then the data has been sent from Arduino indicating something abnormal temperature value of a person has been detected ( above threshold value which is set to the Arduino). In such case, an SMS alert is sent out to the authorities using the Twillio SMS service.

SMS alert on authoritie's phone

That's it! Have a go at this project and in case you like my friendly little smart contactless thermometer. :D

Code

#include <Wire.h>
#include <SparkFun_APDS9960.h>
#include <Adafruit_MLX90614.h>
#include <Adafruit_GFX.h>
#include <Adafruit_SSD1306.h>

#define OLED_RESET 4
Adafruit_SSD1306 display(OLED_RESET);


#include <Adafruit_NeoPixel.h>
#ifdef __AVR__
 #include <avr/power.h> 
#endif
#define PIN        6
#define NUMPIXELS 16 
Adafruit_NeoPixel pixels(NUMPIXELS, PIN, NEO_GRB + NEO_KHZ800);

#define DELAYVAL 10 



SparkFun_APDS9960 apds = SparkFun_APDS9960();
uint8_t proximity_data = 0;
Adafruit_MLX90614 mlx = Adafruit_MLX90614();

void setup() {
#if defined(__AVR_ATtiny85__) && (F_CPU == 16000000)
  clock_prescale_set(clock_div_1);
#endif
pinMode(3,OUTPUT);
pixels.begin();
  mlx.begin();
  apds.init();
  apds.enableProximitySensor(false);
  display.begin(SSD1306_SWITCHCAPVCC, 0x3C);  // initialize with the I2C addr 0x3C (for the 128x32)
  Serial.begin(9600);

}


void loop() {
  pixels.clear();
  String temperature = "";
  /*
    Serial.print("Ambient ");
    Serial.print(mlx.readAmbientTempC());
    Serial.print(" C");
    Serial.println();

    Serial.print("Target  ");
    Serial.print(mlx.readObjectTempC());
    Serial.print(" C");
    Serial.println();
  */
  apds.readProximity(proximity_data);
  if (proximity_data == 255 && mlx.readObjectTempF() < 100) {


    temperature = String(mlx.readObjectTempC(), 1);
    Serial.println(mlx.readObjectTempC());
    display.clearDisplay();
    display.invertDisplay(false);
    display.setTextSize(2);
    display.setTextColor(WHITE);
    display.setCursor(8, 0);
    display.clearDisplay();
    display.println("Body Temp:");
    display.setCursor(25, 18);
    display.print(mlx.readObjectTempC());

    display.setCursor(85, 8);
    display.print(".");


    display.setTextColor(WHITE);
    display.setCursor(85, 18);
    display.print(" C");
    display.display();

for(int i=0; i<NUMPIXELS; i++)
  { 
    pixels.setPixelColor(i, pixels.Color(0, 150, 0));
    pixels.show(); 
    delay(50);
  }
  delay (10);
  for(int i=0; i<NUMPIXELS; i++) 
  { 
    pixels.setPixelColor(i, pixels.Color(0, 0, 0));
    pixels.show();   
    delay(50); 
  }


   delay(1000);

  }
  if (proximity_data == 255) {
    if (mlx.readObjectTempF() > 102) {
      digitalWrite(3, HIGH);
      noTone(5);
      // play a note on pin 8 for 500 ms:
      tone(8, 523, 500);
      Serial.println(mlx.readObjectTempC());
      display.clearDisplay();
      display.invertDisplay(false);
      display.setTextSize(2);
      display.setTextColor(WHITE);
      display.setCursor(20, 0);
      display.clearDisplay();
      display.println("CRITICAL");

      display.invertDisplay(true);
      display.setTextSize(2);
      display.setTextColor(WHITE);
      display.setCursor(20, 0);
      display.clearDisplay();
      display.println("CRITICAL");


      display.invertDisplay(true);
      display.setTextColor(WHITE);
      display.setCursor(20, 0);
      display.clearDisplay();
      display.println("CRITICAL");


      display.invertDisplay(false);
      display.setTextSize(2);
      display.setTextColor(WHITE);
      display.setCursor(20, 0);
      display.clearDisplay();
      display.println("CRITICAL");

      display.invertDisplay(true);
      display.setTextSize(2);
      display.setTextColor(WHITE);
      display.setCursor(20, 0);
      display.clearDisplay();
      display.println("CRITICAL");


      display.invertDisplay(true);
      display.setTextColor(WHITE);
      display.setCursor(20, 0);
      display.clearDisplay();
      display.println("CRITICAL");


      display.invertDisplay(false);
      display.setTextSize(2);
      display.setTextColor(WHITE);
      display.setCursor(20, 0);
      display.clearDisplay();
      display.println("CRITICAL");




      display.setCursor(23, 18);
      display.print(mlx.readObjectTempC());
      display.setCursor(93, 8);
      display.print(".");
      display.setTextColor(WHITE);
      display.setCursor(93, 18);
      display.print(" C");
      display.display();
      
for(int i=0; i<NUMPIXELS; i++)
  { 
    pixels.setPixelColor(i, pixels.Color(150, 0, 0));
    pixels.show(); 
    delay(10);
  }
  delay (10);
  for(int i=0; i<NUMPIXELS; i++) 
  { 
    pixels.setPixelColor(i, pixels.Color(0, 0, 0));
    pixels.show();   
    delay(10); 
  }


      delay(1000);
   digitalWrite(3, LOW);
    }

  }

  if (proximity_data == 255) {
    if (mlx.readObjectTempF() > 100) {

      display.setCursor(93, 8);
      display.print(".");


      display.setTextColor(WHITE);
      display.setCursor(93, 18);
      display.print(" C");
      display.display();



    }
  }


  else if (proximity_data <= 255) {
    delay(1000);

    display.clearDisplay();
    display.invertDisplay(true);
    display.setTextSize(2.8);
    display.setTextColor(WHITE);
    display.setCursor(45, 1);
    display.clearDisplay();
    display.println("NOT");
    display.setCursor(17, 17);
    display.print("DETECTED");
    display.display();
    digitalWrite(5, LOW);
 

  }



}

#pip install boltiot


from boltiot import Bolt
import json,time
from boltiot import Sms
api_key = "WRITE_API_KEY_HERE"
device_id  = "WRITE_DEVICE_NAME_HERE"
mybolt = Bolt(api_key, device_id)
from boltiot import Sms # Import SMS class from boltiot library
# Credentials required to send SMS
SID = 'You can find SID in your Twilio Dashboard' 
AUTH_TOKEN = 'You can find  on your Twilio Dashboard' 
FROM_NUMBER = 'This is the no. generated by Twilio. You can find this on your Twilio Dashboard'
TO_NUMBER = 'This is your number. Make sure you are adding +91 in beginning'
sms = Sms(SID, AUTH_TOKEN, TO_NUMBER, FROM_NUMBER) # Create object to send SMS


a=mybolt.digitalRead('0')
data = json.loads(a)
b=int(data['success'])
sum=0
while(b == 1):
  response =mybolt.digitalRead('0')
  data1 = json.loads(response)
  c=int(data1['value'])
  if(c==0):
    sum=0
  if(c==1):
      print(c)
      sum=sum+1
      if sum==1:
           sms.send_sms("Write your message here.") # Call function to send SMS!'

Contactless temperature using Bolt IoT

Things used in this project

Hardware components

Software apps and online services

Hand tools and fabrication machines

Story

Software Setup:

Schematics

Contactless thermometer circuit

Code

Arduino_Code

Python_code

Credits

Ayan Ghosh

Comments

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Contactless temperature using Bolt IoT

Contactless temperature using Bolt IoT

Things used in this project

Hardware components

Software apps and online services

Hand tools and fabrication machines

Story

Software Setup:

Schematics

Contactless thermometer circuit

Code

Arduino_Code

Python_code

Credits

Ayan Ghosh

Comments

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