How to Control LED Using Your Voice Command Arduino | Voice Control Arduino | Fair Electro
How to control different color LEDs with voice?
In this video, i show you how to control four different color LEDs with voice Command. I am using Arduino UNO R3, Bluetooth module HC-05 and four different color LEDs. Which color I speak, that LED automatically turn ON.
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I am using:-
Arduino UNO https://amzn.to/31bmhUL
Bread Board https://amzn.to/3q3lRKN
LEDs https://amzn.to/3pUwgZ2
HC-05 Bluetooth Module https://amzn.to/31rBfGB
Jumper wires https://amzn.to/3pYXuOi
For Arduino Learning:-
Arduino Starter kit https://amzn.to/3GWignR
Arduino Mega Stater Kit https://amzn.to/2ZKIaK6
Code:
String voice;
#define ledRed 4
#define ledGreen 5
#define ledBlue 6
#define ledWhite 7
void setup()
{
Serial.begin(9600);
pinMode(ledRed, OUTPUT);
pinMode(ledGreen, OUTPUT);
pinMode(ledBlue, OUTPUT);
pinMode(ledWhite, OUTPUT);
}
void loop() {
while (Serial.available()) //Check if there is an available byte to read
{
delay(10); //Delay added to make thing stable
char c = Serial.read(); //Conduct a serial read
voice += c; //Shorthand for voice = voice + c
}
if (voice.length() 0) // use right angular bracket after 0
{
Serial.println(voice);
if(voice == "red")
{
digitalWrite(ledRed,HIGH);
delay(9000);
digitalWrite(ledRed,LOW);
}
else if(voice == "green")
{
digitalWrite(ledGreen,HIGH);
delay(9000);
digitalWrite(ledGreen,LOW);
}
else if(voice == "blue")
{
digitalWrite(ledBlue,HIGH);
delay(9000);
digitalWrite(ledBlue,LOW);
}
else if(voice == "white")
{
digitalWrite(ledWhite,HIGH);
delay(9000);
digitalWrite(ledWhite,LOW);
}
voice=""; //Reset the variable after initiating
}}