Project tutorial
Voice Controlled Car

Voice Controlled Car © LGPL

This car is designed to be controlled by voice commands.

  • 34,757 views
  • 3 comments
  • 28 respects

Components and supplies

About this project

Components:

  • Arduino Uno
  • Breadboard
  • Motors x2
  • Wheels x2
  • Chassis (of appropriate size)
  • Voltage Regulator LM7805
  • L293D
  • 12V battery (power source)
  • Jumper wires
  • Bluetooth Module HC-05

You can find the app here: https://play.google.com/store/apps/details?id=appinventor.ai_cempehlivan92.Arduino_Sesli_Kontrol

Idea:

We connect the Bluetooth module with the mobile app. Once done, the commands which we give through the mobile get sent to the Arduino via the module. We accept character by character from the serial buffer sent by the app and combine them to form a string.

We then compare it to the command. If it matches, the command is carried out. For example, when the string we receive is "Right", the bot turns right.

Connections:

Find all connections here :https://yainnoware.blogspot.com/p/voice-controlled-car.html

Code:

int motor_input1=11;
int motor_input2=10;
int motor_input3=5;
int motor_input4=6;
String voice;
void setup() 
{
  Serial.begin(9600);
  pinMode(motor_input1, OUTPUT);   //RIGHT MOTOR
  pinMode(motor_input2, OUTPUT);   //RIGHT MOTOR
  pinMode(motor_input3, OUTPUT);   //LEFT MOTOR
  pinMode(motor_input4, OUTPUT);   //LEFT MOTOR
}
void loop() 
{  
  while(Serial.available()>0)
  {
    delay(10);
    char c=Serial.read();
    if(c=='#')
    {
      break;
    }
    voice+=c;
    }
   if(voice=="forward"){
    digitalWrite(motor_input1, LOW);
    digitalWrite(motor_input2, HIGH);
    digitalWrite(motor_input3, LOW);
    digitalWrite(motor_input4, HIGH);
     delay(5000);
    }
  else
    if(voice=="back"){
    digitalWrite(motor_input1, HIGH);
    digitalWrite(motor_input2, LOW);
    digitalWrite(motor_input3, HIGH);
    digitalWrite(motor_input4, LOW);  
    delay(5000);}
  else
   if(voice=="left"){
    digitalWrite(motor_input1, LOW);
    digitalWrite(motor_input2, HIGH);
    digitalWrite(motor_input3, HIGH);
    digitalWrite(motor_input4, LOW);
    delay(800); 
    }
  else
   if(voice=="right"){
    digitalWrite(motor_input1, HIGH);
    digitalWrite(motor_input2, LOW);
    digitalWrite(motor_input3, LOW);
    digitalWrite(motor_input4, HIGH);
    delay(800);   }
   if(voice.length()>0)
    {
      Serial.println(voice);
       voice="";
    digitalWrite(motor_input1, LOW);
    digitalWrite(motor_input2, LOW);
    digitalWrite(motor_input3, LOW);
    digitalWrite(motor_input4, LOW);
    }
    }

Comments

Similar projects you might like

Voice Controlled K'nex Car

Project tutorial by Austin Wilson

  • 11,097 views
  • 4 comments
  • 54 respects

Bluetooth Controlled Car

Project tutorial by JANAK13

  • 20,213 views
  • 25 comments
  • 51 respects

My First Arduino 101 Car Controlled by BLE

Project tutorial by Alexis Santiago Allende

  • 2,742 views
  • 2 comments
  • 12 respects

Bluetooth Controlled Car

Project in progress by Saman Fernando

  • 143,195 views
  • 98 comments
  • 131 respects

Wifi Controlled Car with Central Hub

Project showcase by Cooper and Vaughn

  • 3,177 views
  • 0 comments
  • 12 respects
Add projectSign up / Login