snehiludrhj
Published © GPL3+

Smart Glasses for Blind Prototype

This are the smart glasses which can tell you about how much far/near the object is in front of you. Helpful for blind people.

IntermediateFull instructions provided9,840
Smart Glasses for Blind Prototype

Things used in this project

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Schematics

Circuit Diagram #1

connecting arduino o ultrasonic sensor

Diagram #2

Mounting sensor on glasses

#3

#4

Code

Arduino IDE code

Arduino
const int trig = 2; //Trigger pin of ultrasonic Sesnor
const int echo = 3; //Echo pin of ultrasonic Sesnor
long time_taken;
int dist,distance;

void setup() 
{
  Serial.begin(9600);  //tells the arduino to get ready to exchange messages with the serial monitor  at a data rate of 9600 bits/sec.
  pinMode(trig, OUTPUT); //configures the specified pin to behave as output/input.
  pinMode(echo, INPUT);
}

/*###Function to calculate distance###*/
void calculate_distance(int trigger, int echo)
{
  digitalWrite(trigger, LOW);
  delayMicroseconds(2);
  digitalWrite(trigger, HIGH);
  delayMicroseconds(10);
  digitalWrite(trigger, LOW);

  time_taken = pulseIn(echo, HIGH);
  dist= time_taken*0.034/2;

}

void loop()
{
  calculate_distance(trig, echo);
  distance=dist; //getting distance of ultrasonic sensor
  Serial.println(distance);
  delay(1000);
}

Python3 code

Python
import serial #serial import for serial communications
import time
import pyttsx3
import speech_recognition as sr

engine = pyttsx3.init('sapi5')
voices = engine.getProperty('voices')
#print(voices[1].id)
engine.setProperty('voice',voices[1].id)

ArduinoSerial = serial.Serial('com3',9600) #Create Serial port object called arduinoSerialData


def speak(audio):
    engine.say(audio)
    engine.runAndWait()

def takecommand():
    #It takes microphone input from the user and returns string as output

    r = sr.Recognizer()
    with sr.Microphone() as source:
        print("Listening....")
        r.pause_threshold = 1
        audio = r.listen(source)

    try:
        print("Recogninsing....")
        query = r.recognize_google(audio, language = 'en-in')
        print(f"User said: {query}\n")

    except Exception as e:
        print(e)
        print("Say that again please...")
        return "None"
    return query

if __name__ == "__main__":
    while True:
     
        query = takecommand().lower()
        #logic for executing tasks based on query

        distance = int(ArduinoSerial.readline()) #read the serial data and print it as line
        dist=str(distance)
        print(dist)
        if "where is the object" in query:
            if (distance<20):
                    speak("StopStop, Close object in front.")
            
                
            elif (20<distance<60):
                    speak("object is quite a distance away.")
                    
            elif (40<distance<100):
                    speak("object is 1 meter away.")

            else:
                    speak("Object is far away.")
        
        else:
            print("nothing")
        

Credits

snehiludrhj

snehiludrhj

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