How to make a voice control Robot.
In this tutorial,I will build a bluetooth control robot which can be operated by voice command through your android phone.
Required Component:
Arduino Program for this project:
Required Component:
- Arduino uno R3
- Motor driver -L293D
- Gear Motor x 2
- Robot chassis
- 9v battery
- Battery connector
- HC-05 Bluetooth Module
- Android Phone
- Bluetooth Controller App
- male to female connector wire
- male to male connector wire
Circuit:
Photo:Electronics hub
Arduino Program for this project:
#include <SoftwareSerial.h>
SoftwareSerial BT(10, 11); //TX, RX respetively
String readvoice;
void setup() {
BT.begin(9600);
Serial.begin(9600);
pinMode(3, OUTPUT);
pinMode(4, OUTPUT);
pinMode(5, OUTPUT);
pinMode(6, OUTPUT);
}
//-----------------------------------------------------------------------//
void loop() {
while (BT.available()){ //Check if there is an available byte to read
delay(10); //Delay added to make thing stable
char c = BT.read(); //Conduct a serial read
readvoice += c; //build the string- "forward", "reverse", "left" and "right"
}
if (readvoice.length() > 0) {
Serial.println(readvoice);
if(readvoice == "forward")
{
digitalWrite(3, HIGH);
digitalWrite (4, HIGH);
digitalWrite(5,LOW);
digitalWrite(6,LOW);
delay(100);
}
else if(readvoice == "reverse")
{
digitalWrite(3, LOW);
digitalWrite(4, LOW);
digitalWrite(5, HIGH);
digitalWrite(6,HIGH);
delay(100);
}
else if (readvoice == "right")
{
digitalWrite (3,HIGH);
digitalWrite (4,LOW);
digitalWrite (5,LOW);
digitalWrite (6,LOW);
delay (100);
}
else if ( readvoice == "left")
{
digitalWrite (3, LOW);
digitalWrite (4, HIGH);
digitalWrite (5, LOW);
digitalWrite (6, LOW);
delay (100);
}
else if (readvoice == "stop")
{
digitalWrite (3, LOW);
digitalWrite (4, LOW);
digitalWrite (5, LOW);
digitalWrite (6, LOW);
delay (100);
}
readvoice="";}}
The android app for control the robot:
Video:
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