Chpritam Patro
Published

Creating a speedometer using arduino & bolt wifi module

We Indians are expert in adjustments, so here is a project which can be used as a speedometer and threat detector.

IntermediateProtip4 hours1,747
Creating a speedometer using arduino & bolt wifi module

Things used in this project

Hardware components

Arduino UNO
Arduino UNO
×1
Bolt WiFi Module
Bolt IoT Bolt WiFi Module
×1
Breadboard (generic)
Breadboard (generic)
×2
Ultrasonic Sensor - HC-SR04 (Generic)
Ultrasonic Sensor - HC-SR04 (Generic)
×2
Jumper wires (generic)
Jumper wires (generic)
×1
USB-A to Mini-USB Cable
USB-A to Mini-USB Cable
×1
USB-A to B Cable
USB-A to B Cable
×1

Software apps and online services

Arduino IDE
Arduino IDE
Bolt IoT Android App
Bolt IoT Android App

Story

Read more

Schematics

SCHEMATIC DIAGRAM

Code

server code

Python
write it on the putty
from twilio.rest import TwilioRestClient
from credentials import account_sid, auth_token, my_cell, my_mobile 
import requests,json,time

client = TwilioRestClient(account_sid, auth_token)

def send_msg(sensor_data):

 my_msg = "speed is more then 3fps"

 message = client.messages.create(to=my_mobile, from_=my_cell, body=my_msg)

while True: 
     r = requests.get('http://cloud.boltiot.com/remote/api key/analogRead?pin=A0&deviceName=BOLTxxxxx')
     data = json.loads(r.text)
     print (data['value'])
     try:
        sensor_value = int(data['value'])
        print (sensor_value)
        if sensor_value == 0:
           send_msg(str(sensor_value))
     except Exception as e:
         print ("Error")
         print (e) 
     time.sleep(5)

speed.js

JavaScript
to setup the bolt confurigation.
setChartType('lineGraph');
setAxisName('time','Speed in fps');
plotChart('time_stamp','temp');

speed code

Arduino
arduino code
//Ping sensors
#define trigPin1 2 //defines ping sensor1 trigger to pinslot 2
#define echoPin1 3 //defines ping sensor1 echo to pinslot 3
#define trigPin2 12 //defines ping sensor2 trigger to pinslot 4
#define echoPin2 11 //defines ping sensor2 echo to pinslot 5

unsigned long time1,time2;
//duration of the traveldistance from ping sensor to object and back to ping sensor
unsigned long duration1=0; //ping sensor1 duration
unsigned long duration2=0; //ping sensor2 duration
//defining attributes for distance
int distance1; //distance, to calculate distance to object from ping sensor1
int distance2; //distance, to calculate distance to object from ping sensor2
float fps, elap,mph;

#include <SoftwareSerial.h>
SoftwareSerial mySerial(8,9);
void setup() 
{
  // put your setup code here, to run once:
Serial.begin(9600);
 mySerial.begin(9600);
 pinMode(4,OUTPUT);
pinMode(trigPin1, OUTPUT); //ping sensor trigger OUTPUT
pinMode(echoPin1, INPUT); //ping sensor echo INPUT
pinMode(trigPin2, OUTPUT); //ping sensor2 trigger OUTPUT
pinMode(echoPin2, INPUT); //ping sensor2 echo INPUT
 Serial.setTimeout(100);
}
//method to measure distance of ping sensor1
void measureDistance1() {
pinMode(trigPin1, OUTPUT); //ping sensor1 trigger OUTPUT
pinMode(echoPin1, INPUT); //ping sensor1 echo INPUT
digitalWrite(trigPin1, HIGH); //ping sensor1 sends ultrasonic wave
delayMicroseconds(10); //waits for 1 second (1000 microseconds)
digitalWrite(trigPin1, LOW); //ping sensor1 trigger is LOW
duration1 = pulseIn(echoPin1, HIGH); //ping sensor1 retrieves the sound
}
void measureDistance2() {
pinMode(trigPin2, OUTPUT);
pinMode(echoPin2, INPUT);
digitalWrite(trigPin2, HIGH);
delayMicroseconds(10);
digitalWrite(trigPin2, LOW);
duration2 = pulseIn(echoPin2, HIGH);
}
//method to calculate distance based on information recieved with measure distance -method for ping sensor1
int calculateDistance1() {
measureDistance1(); //calls for measureDistance() method
duration1=duration1/2; //divides duration of the sound from ping sensor1 to object and back to the sensor and divides it by 2 (sound travels 2 times)
distance1 = int(duration1/29); //duration is then divided by 29 (sound travels 29 microseconds per centimeter)
//Serial.print("Ping distance (CM) - "); //prints "Ping distance (CM) - ") to serial monitor
//Serial.println(distance1); //prints the distance number to serial monitor
delay(50); //waits for 0,5 seconds (500 microseconds)
}
 
//method to calculate distance based on information recieved with measure distance -method for ping sensor2
int calculateDistance2() {
measureDistance2();
duration2=duration2/2;
distance2 = int(duration2/29);
//Serial.print("Ping2 distance (CM) - ");
//Serial.println(distance2);
delay(50);
}
String data;
uint8_t dataRead = 0;

void loop() {
  // put your main code here, to run repeatedly:
 
if (mySerial.available() > 0) {
    delay(50);
    String readData = "";
    Serial.print("cmd from bolt:");
    while (mySerial.available() > 0 ) {
      readData = readData + (char)mySerial.read();
    }
    Serial.println(readData);
    if (readData.indexOf("RD") != -1) {
      String data = sensor_data_to_push();
      mySerial.print(data);
      Serial.print("data sent to bolt:");
      Serial.print(data);
    }
  } 
 digitalWrite(4,HIGH);
   Serial.println ("Waiting for projectile");
calculateDistance1(); //calls for calculateDistance1() -method
 calculateDistance2(); //calls for calculateDistance2() -method

while (distance1 >15)
 {
  
calculateDistance1();

  }
  while (distance1 <= 15)
  {
    time1 = micros();
 
    calculateDistance1();
   
    }
    while (distance2 > 15)
    {
      calculateDistance2();
      }
      while (distance2 <=15)
      {
        time2 = micros();
        calculateDistance2();       
        }   
        
elap = time2 - time1;
fps = 666666/elap;
 
 mph= 1.097*fps;

 //Serial.print(elap);
Serial.println("Foot per Sec :");
Serial.print(fps);
 if (mph >= 3 )
  {
    digitalWrite(4,LOW);
    delay (5159);
   
  }
}
String sensor_data_to_push() {
  String data;
  float temp = fps;
  data =String(temp);
  Serial.print("data is:");
  Serial.println(data);
  return data;
  loop();
}

credentials

Python
to get message
account_sid="twilio sid" 
auth_token="twilio auth"
my_mobile="+your phone number" 
my_cell="your twilio number"

Credits

Chpritam Patro

Chpritam Patro

3 projects • 9 followers

Comments

Related channels and tags
  • Bolt IoT
  • Internet of Things
  • Internet of Things
  • Robotics
  • Robotics