I am trying to do use two bluetooth modules to control an LEDs.  I am using HC05 as master and another as slave.  I can get the two bluetooth module to pair up and communicate with one another using a serial communication in the Arduino IDE.  Now what I want to do is to use a push pins to turn on and off an LEDs.  Here is my set up for the loop and void set up.  I attached also the code that I am using for the bluetooth.   ============================================================= void loop()  {   if(digitalRead(left_arrow_pin) == HIGH)   {     // seems like left arrow button was pressed      // so we clear all the pixels first     clear_all_pixels();     // and then we show the left arrow     left_arrow();   }   else if(digitalRead(right_arrow_pin) == HIGH)   {     // seems like right arrow button was pressed      // so we clear all the pixels first     clear_all_pixels();     // and then we show the right arrow     right_arrow();   }   else if(digitalRead(stop_sign_pin) == HIGH)   {     // seems like stop sign button was pressed      // so we clear all the pixels first     clear_all_pixels();     // and then we show the stop sign     stop_sign();   }  } ==================================================================== void setup()  {   //setting the button pins we defined above as inputs   pinMode(left_arrow_pin, INPUT);   pinMode(right_arrow_pin, INPUT);   pinMode(stop_sign_pin, INPUT);   //initializing the led strip   strip.begin();   strip.show(); } .

1. I am trying to do use two bluetooth modules to control an LEDs.
I am using HC05 as master and another as slave. I can get the
two bluetooth module to pair up and communicate with one
another using a serial communication in the Arduino IDE. Now
what I want to do is to use a push pins to turn on and off an
LEDs. Here is my set up for the loop and void set up. I
attached also the code that I am using for the bluetooth.
===============================================
==============
void loop()
{
if(digitalRead(left_arrow_pin) == HIGH)
{
// seems like left arrow button was pressed
// so we clear all the pixels first
clear_all_pixels();
// and then we show the left arrow
left_arrow();
}
else if(digitalRead(right_arrow_pin) == HIGH)
{
// seems like right arrow button was pressed
// so we clear all the pixels first
clear_all_pixels();
// and then we show the right arrow
right_arrow();
}
else if(digitalRead(stop_sign_pin) == HIGH)
{
// seems like stop sign button was pressed
// so we clear all the pixels first
clear_all_pixels();

2. // and then we show the stop sign
stop_sign();
}
}
===============================================
=====================
void setup()
{
//setting the button pins we defined above as inputs
pinMode(left_arrow_pin, INPUT);
pinMode(right_arrow_pin, INPUT);
pinMode(stop_sign_pin, INPUT);
//initializing the led strip
strip.begin();
strip.show();
}