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 - SparkFun Learn)
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:
https://github.com/shirriff/Arduino-IRremote
RGB Remote Control uses a combination of SparkFun's
IR Remote (https://www.sparkfun.com/products/11759) and an
IR receiver diode (https://www.sparkfun.com/products/10266) 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;
else
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:
Serial.println("Power");
if (ledEnable) ledEnable = 0;
else ledEnable = 1; // Flip ledEnable
break;
case BUTTON_A:
Serial.println("A");
activeChannel = RED;
break;
case BUTTON_B:
Serial.println("B");
activeChannel = GREEN;
break;
case BUTTON_C:
Serial.println("C");
activeChannel = BLUE;
break;
case BUTTON_UP:
Serial.println("Up");
rgbValues[activeChannel]++; // Increment brightness
break;
case BUTTON_DOWN:
Serial.println("Down");
rgbValues[activeChannel]--; // Decrement brightness
break;
case BUTTON_LEFT:
Serial.println("Left");
rgbValues[activeChannel] = 0; // Min brightness (off)
break;
case BUTTON_RIGHT:
Serial.println("Right");
rgbValues[activeChannel] = 255; // Max brightness
break;
case BUTTON_CIRCLE:
Serial.println("Circle");
rgbValues[activeChannel] = 127; // Medium brightness
break;
default:
Serial.print("Unrecognized code received: 0x");
Serial.println(results.value, HEX);
break;
}
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]);
}
}
else
{
for (int i=0; i<3; i++)
{
analogWrite(rgbPins[i], 0);
}
}
}
setColor(255, 0, 0); // red
delay(1000);
setColor(0, 255, 0); // green
delay(1000);
setColor(0, 0, 255); // blue
delay(1000);
setColor(255, 255, 0); // yellow
delay(1000);
setColor(80, 0, 80); // purple
delay(1000);
setColor(0, 255, 255); // aqua
delay(1000);
}
void setColor(int red, int green, int blue)
{
#ifdef COMMON_ANODE
red = 255 - red;
green = 255 - green;
blue = 255 - blue;
#endif
analogWrite(rgbPins(0), red);
analogWrite(rgbPins(1), green);
analogWrite(rgbPins(2), blue);
}
Thank you for your help!