Hackster is hosting Hackster Holidays, Finale: Livestream & Giveaway Drawing. Watch previous episodes or stream live on Tuesday!Stream Hackster Holidays, Finale on Tuesday!
Tharindu Suraj
Published © GPL3+

Save Your Life with the Building Collapse Monitor

Analyse concrete, metal, wood structures for bends and angles and alerts if they have deviated from the original position.

BeginnerFull instructions provided1 hour7,600

Things used in this project

Hardware components

Arduino 101
Arduino 101
×1
SparkFun Flex Sensor
×2
Buzzer
Buzzer
×1
Resistor 10k ohm
Resistor 10k ohm
×2

Software apps and online services

Blynk
Blynk
Arduino IDE
Arduino IDE

Story

Read more

Schematics

Fritzing Diagram

Code

Arduino101Code

Arduino
/*This code file is related to the "Structure Analyzer" which
 * is a device to maintain the standards and levels of many
 * types of structures.
 * Developed by Tharindu Suraj. 14/03/2017
 */

#define BLYNK_PRINT Serial
#define flex1 A0
#define flex2 A1          //Define flex sensor and buzzer pins
#define buzzer 3

#include "CurieIMU.h"
#include <BlynkSimpleCurieBLE.h>
#include <CurieBLE.h>
#include <Wire.h>
#include <EEPROM.h>
#include <SPI.h>

char auth[] = "**************";          //Blynk Authorization Code

WidgetTerminal terminal(V2);
BLEPeripheral  blePeripheral;

int m_flx1,m_flx2,m_x,m_y,m_z; //values saved in memory
int flx1, flx2,x,y,z; //Current readings

void values(){
  for(int i=0;i<100;i++){
    flx1 = analogRead(flex1);        //Get raw readings from sensors
    flx2 = analogRead(flex2);
    x = CurieIMU.readAccelerometer(X_AXIS)/100;
    y = CurieIMU.readAccelerometer(Y_AXIS)/100;
    z = CurieIMU.readAccelerometer(Z_AXIS)/100;
    delay(2);
    }
    flx1=flx1/100;
    flx2=flx2/100;
    x = x/100;   //Get the average values of the readings
    y = y/100;
    z = z/100;
}

void setup(){
  //pinMode(3,OUTPUT);
  pinMode(flex1,INPUT);
  pinMode(flex2,INPUT);          //Setting the sensor pin modes
  
  Serial.begin(9600);

  blePeripheral.setLocalName("Arduino101Blynk");
  blePeripheral.setDeviceName("Arduino101Blynk");
  blePeripheral.setAppearance(384);
  Blynk.begin(auth, blePeripheral);
  blePeripheral.begin();

  m_flx1 = EEPROM.read(0);
  m_flx2 = EEPROM.read(1);
  m_x = EEPROM.read(2);        //Read pre saved sensor values from EEPROM
  m_y = EEPROM.read(3);
  m_z = EEPROM.read(4);
  
}


void loop(){
  Blynk.run();
  blePeripheral.poll();

  values();

  if(abs(flex1-m_flx1)>10 or abs(flex2-m_flx2)>10){
    terminal.println("Over Bend");
   tone(buzzer, 1000); 
  }

  if(abs(x-m_x)>15 or abs(y-m_y)>15 or abs(z-m_z)>15){
    terminal.println("Over Inclined");
 tone(buzzer, 1000);  
  }

   tone(buzzer, 0);  
  }
  
/*VO indicates the calibration mode. In this mode the values of sensors
 * are saved in the EEPROM
 */
BLYNK_WRITE(V0){
  int pinValue = param.asInt();

  if (pinValue == 1){
   values();
   EEPROM.write(0,flx1);
   EEPROM.write(1,flx2);    
   EEPROM.write(2,x);  
   EEPROM.write(3,y);  
   EEPROM.write(4,z);
   terminal.print("Calibration Succesful");
  }                             
}

/*We can request current deviation values 
 * by pressing the button V1
 */

BLYNK_WRITE(V1){  
   int pinValue = param.asInt();

   if (pinValue == 1){                                                  
        values();
        terminal.print("X angle deviation- ");
        terminal.print(abs(x-m_x));
        terminal.println();
        terminal.print("Y angle deviation- ");
        terminal.print(abs(y-m_y));
        terminal.println();
        terminal.print("Z angle deviation- ");
        terminal.print(abs(z-m_z));
        terminal.println();
        terminal.print("Flex 1 deviation- ");
        terminal.print(abs(flx1-m_flx1));
        terminal.println();
        terminal.print("Flex 2 deviation- ");
        terminal.print(abs(flx2-m_flx2));
        terminal.println();
           }
      }
  
BLYNK_WRITE(V2){                                                   
         
      }

Credits

Tharindu Suraj
1 project • 8 followers

Comments

Related channels and tags
  • Arduino
  • Blynk
  • SparkFun