Help me in my project!

Projects General Guidance
1

Hi, I am new to programming and all stuff. I thought of a project with arduino and RGB led strips.
Here's what I thought:
-Android controls Arduino through BT module
-3 modes in RGB lighting -- 1) Mood Light Mode - Color changes slowly
2) User Mode - User decides the color of the strip
3) Music Reaction Mode - Reaction to music
-Android App controls the functions

Moreover, I am trying to make a new fuction void moodlight(), and it says
"a function-definition is not allowed here before '{' token"
I am unable to understand this.

Here's my code for moodlight:

void mood()
{
#define DELAY_TIME 500
#define MAX_BRIGHT 255
#define PIN_RED 9
#define PIN_GREEN 10
#define PIN_BLUE 11
int red = 0;
int green = 170;
int blue = 170;
int incR = 1;
int incG = 1;
int incB = 0;
void transition()
{
if (red >= MAX_BRIGHT)
incR = 0;
else if (red <= 0)
incR = 1;
if (green >= MAX_BRIGHT)
incG = 0;
else if (green <= 0)
incG = 1;
if (blue >= MAX_BRIGHT)
incB = 0;
else if (blue <= 0)
incB = 1;

if (incR)
red++;
else
red--;
if(incG)
green++;
else
green--;
if(incB)
blue++;
else
blue--;
}
void setColor()
{
analogWrite(PIN_RED, red);
analogWrite(PIN_GREEN, green);
analogWrite(PIN_BLUE, blue);
}
void setup()
{

}
void loop()
{
transition();
setColor();
delay(DELAY_TIME);
}
}

2

Please post the whole code

3

All your functions seem to be declared inside the mood() function; you can not declare a function inside another function; you can only call it.

#define DELAY_TIME 500
#define MAX_BRIGHT 255
#define PIN_RED 9
#define PIN_GREEN 10
#define PIN_BLUE 11
  int red = 0;
  int green = 170;
  int blue = 170;
  int incR = 1;
  int incG = 1;
  int incB = 0;


void setup()
{
  ...
  ...
}

void loop()
{
  transition();
  setColor();
  delay(DELAY_TIME);
}

void transition()
{
  ...
  ...
}

void setColor()
{
  ...
  ...
}

void mood()
{
  ...
  ...
}

Please use code tags instead of quote tags when posting code or error messages.

[code] your code here [/code] will result in

 your code here
4

I have started this project today itself, only coded the mood light part. Will do the rest afterwards. Thanks for help. But I want a single command, through which I can execute the whole moodlight part, rather to type the whole code again and again. Its like I want to declare the moodlight thing as a function or command, and when conditions are fulfilled it will start the moodlight.

5

mood() is a function. You can call it from anywhere. Let's say you have a button that goes low when you press it and that will start the moodlight mode.

void loop()
{
  if(digitalRead(yourButton) == LOW
  {
    mood();
  }
  else
  {
    ...
    ...
  }
}

void mood()
{
  digitalWrite(13, HIGH);
  delay(500);
  digitalWrite(13, LOW);
}

The above mood() simply switches the onboard LED on for 500ms (on an Uno) and is called when the button is pressed. Your mood() will be more complicated.