Using an input to toggle void loop()

Hello all,

I am relatively new to the electronics world and wanted to test the waters by making a RGB led light up and change color according to codes received by an IR receiver module. I followed this tutorial from Sparkfun

(IR Control Kit Hookup Guide -

After getting the circuit and the code to work, I wanted to see if I could switch between manually changing the colors of the led, to having it automatically cycle with a one second delay in between each color. For this I used adafruit’s tutorial on RGB LEDs

( Arduino Sketch | Arduino Lesson 3. RGB LEDs | Adafruit Learning System)

My method for incorporating this idea was putting the manual code in a while loop, so that while the switch is not toggled (“auto” mode is off) one can change the colors as desired, in hopes that when the switch is on and toggled (“auto” mode is on) the colors cycle on there own. Unfortunately, after looking through the code and trying to verify it, it gives the error message “rgbPins cannot be used as a function”, and highlights one of the analogWrite commands within the function “setcolor” that should shuffle the colors automatically.

I guess to end a long story, if there is any advice on how to effectively do what I am looking for, it would be much appreciated!

/* RGB Remote Control
   by: Jim Lindblom
   SparkFun Electronics
   date: October 1, 2013

   This sketch uses Ken Shirriff's *awesome* IRremote library:

   RGB Remote Control uses a combination of SparkFun's 
   IR Remote ( and an
   IR receiver diode ( to
   control an RGB LED.

   The IR Remote's power button turns the LED on or off. The A, B, 
   and C buttons select a channel (red, green, or blue). The up
   and down arrows increment or decrement the LED brightness on that channel.
   The left and right arrows turn a channel to min or max, and
   circle set it to the middle.

   Hardware setup:
     * The output of an IR Receiver Diode (38 kHz demodulating
       version) should be connected to the Arduino's pin 11.
       * The IR Receiver diode should also be powered off the
         Arduino's 5V and GND rails.
     * A common cathode RGB LED is connected to Arduino's pins 
       5, 9, and 6 (red, green, and blue pins).

#include <IRremote.h> // Include the IRremote library

/* Setup constants for SparkFun's IR Remote: */
#define NUM_BUTTONS 9 // The remote has 9 buttons
/* Define the IR remote button codes. We're only using the
   least signinficant two bytes of these codes. Each one 
   should actually have 0x10EF in front of it. Find these codes
   by running the IRrecvDump example sketch included with
   the IRremote library.*/
const uint16_t BUTTON_POWER = 0xD827; // i.e. 0x10EFD827
const uint16_t BUTTON_A = 0xF807;
const uint16_t BUTTON_B = 0x7887;
const uint16_t BUTTON_C = 0x58A7;
const uint16_t BUTTON_UP = 0xA05F;
const uint16_t BUTTON_DOWN = 0x00FF;
const uint16_t BUTTON_LEFT = 0x10EF;
const uint16_t BUTTON_RIGHT = 0x807F;
const uint16_t BUTTON_CIRCLE = 0x20DF;

/* Connect the output of the IR receiver diode to pin 11. */
int RECV_PIN = 11;
/* Initialize the irrecv part of the IRremote  library */
IRrecv irrecv(RECV_PIN);
decode_results results; // This will store our IR received codes
uint16_t lastCode = 0; // This keeps track of the last code RX'd

/* Setup RGB LED pins: */
enum ledOrder // Make an enum to add some clarity in the code
  RED,   // 0
  GREEN, // 1
  BLUE   // 2
const int rgbPins[3] = {5, 9, 6}; // Red, green, blue pins respectively
byte rgbValues[3] = {255, 0, 0}; // This keeps track of channel brightness
byte activeChannel = RED; // Start with RED as the active channel
boolean ledEnable = 1; // Start with the LED on.
const int toggle = 2;

void setup()
  Serial.begin(9600); // Use serial to debug. 
  irrecv.enableIRIn(); // Start the receiver

  /* Set up the RGB LED pins: */
  for (int i=0; i<3; i++)
    pinMode(rgbPins[i], OUTPUT);
    analogWrite(rgbPins[i], rgbValues[i]);

// loop() constantly checks for any received IR codes. At the
// end it updates the RGB LED.
void loop() 
  int toggleState = digitalRead(toggle);
  while (toggleState == LOW)
  if (irrecv.decode(&results)) 
    /* read the RX'd IR into a 16-bit variable: */
    uint16_t resultCode = (results.value & 0xFFFF);

    /* The remote will continue to spit out 0xFFFFFFFF if a 
     button is held down. If we get 0xFFFFFFF, let's just
     assume the previously pressed button is being held down */
    if (resultCode == 0xFFFF)
      resultCode = lastCode;
      lastCode = resultCode;

    // This switch statement checks the received IR code against
    // all of the known codes. Each button press produces a 
    // serial output, and has an effect on the LED output.
    switch (resultCode)
      case BUTTON_POWER:
        if (ledEnable) ledEnable = 0;
        else ledEnable = 1; // Flip ledEnable
      case BUTTON_A:
        activeChannel = RED;
      case BUTTON_B:
        activeChannel = GREEN;
      case BUTTON_C:
        activeChannel = BLUE;
      case BUTTON_UP:
        rgbValues[activeChannel]++; // Increment brightness
      case BUTTON_DOWN:
        rgbValues[activeChannel]--; // Decrement brightness
      case BUTTON_LEFT:
        rgbValues[activeChannel] = 0; // Min brightness (off)
      case BUTTON_RIGHT:
        rgbValues[activeChannel] =  255; // Max brightness
      case BUTTON_CIRCLE:
        rgbValues[activeChannel] = 127; // Medium brightness
        Serial.print("Unrecognized code received: 0x");
        Serial.println(results.value, HEX);
    irrecv.resume(); // Receive the next value

  // Every time through the loop, update the RGB LEDs:
  if (ledEnable)
    for (int i=0; i<3; i++)
      analogWrite(rgbPins[i], rgbValues[i]);
    for (int i=0; i<3; i++)
      analogWrite(rgbPins[i], 0);
   setColor(255, 0, 0);  // red
  setColor(0, 255, 0);  // green
  setColor(0, 0, 255);  // blue
  setColor(255, 255, 0);  // yellow
  setColor(80, 0, 80);  // purple
  setColor(0, 255, 255);  // aqua
void setColor(int red, int green, int blue)
    red = 255 - red;
    green = 255 - green;
    blue = 255 - blue;
  analogWrite(rgbPins(0), red);
  analogWrite(rgbPins(1), green);
  analogWrite(rgbPins(2), blue);  

Thank you for your help!

analogWrite(rgbPins(0), red);
  analogWrite(rgbPins(1), green);
  analogWrite(rgbPins(2), blue);

Is wrong. You seem to have forgotten how to write an array index just in this one spot. You have it right everywhere else.

Notice the difference here where you did it right?

analogWrite(rgbPins[i], rgbValues[i]);

[] is not the same as ()

Wow, what an oversight. That did the trick. Thanks for your patience for such a small problem, it is much appreciated!

Best Regards!