4.- Remote Control, 6 channels. 2.4 GHz.
I like this module, I recommend it! 
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The transmitter module has 6 buttons, when you press any of them a LED lights up on the receiver module. This module does not need to be programmed. Power, Pair and Go.
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We are going to carry out this project. Our application will send a letter (a,b,c,d,...) via Bluetooth to the Arduino with the HC-06 module. Arduino will HIGH/LOW one of its pins. The emitter module will send a signal to turn on/ off its corresponding LED.
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Range, about 80 m.
p9A0i_bluetooth_controlremoto.aia (3.4 KB)
- Arduino code.
char caracter;
void setup() {
Serial.begin(9600);
pinMode(4, OUTPUT);
pinMode(5, OUTPUT);
pinMode(6, OUTPUT);
pinMode(7, OUTPUT);
pinMode(8, OUTPUT);
pinMode(9, OUTPUT);
}
void loop() {
if(Serial.available()) {
caracter = Serial.read();
Serial.println(caracter);
if(caracter == 'a'){ digitalWrite(4, LOW);}
if(caracter == 'b'){ digitalWrite(4, HIGH);}
if(caracter == 'c'){ digitalWrite(5, LOW);}
if(caracter == 'd'){ digitalWrite(5, HIGH);}
if(caracter == 'e'){ digitalWrite(6, LOW);}
if(caracter == 'f'){ digitalWrite(6, HIGH);}
if(caracter == 'g'){ digitalWrite(7, LOW);}
if(caracter == 'h'){ digitalWrite(7, HIGH);}
if(caracter == 'i'){ digitalWrite(8, LOW);}
if(caracter == 'j'){ digitalWrite(8, HIGH);}
if(caracter == 'k'){ digitalWrite(9, LOW);}
if(caracter == 'l'){ digitalWrite(9, HIGH);}
}
}