How to use RGB LED with Arduino code calculate resistor value
Controlling RGB LED using Arduino
In this page you will get the code to control RGB LED using Arduino
Image above shows the RGB LED has 3 LED in one package
Image above shows connecting resistor on Common-Cathode and Common-Anode
Controlling RGB LED using Arduino
/*
* This Arduino sktech is to control color on REG LED
* Written by Ahmad Shamshiri for Robojax.com
* on Octover 06th 2018 at 14:00 in Ajax, Ontario, Canada
Watch instruciton video for this code: https://youtu.be/rggg-_wb56I
* This code is "AS IS" without warranty or liability. Free to be used as long as you keep this note intact.*
* This code has been download from Robojax.com
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <https://www.gnu.org/licenses/>.
*/
int RED = 11;// the PWM pin the RED LED is attached to
int GREEN = 10;// the PWM pin the GREEN LED is attached to
int BLUE = 6;// the PWM pin the BLUE LED is attached to
int colorTime = 2000; // time to wait between color change
int color[8][3] =
{
{255,255,255},// white
{255,0,0},// red
{0,255,0},// green
{0,0,255},// blue
{255,255,0},// yellow
{0,255,255},// a qua
{255,0,255},// pink
{139,69,19},//brown
};
String colorName[8]=
{
"White",
"Red",
"Green",
"Blue",
"Yellow",
"Aqua",
"Pink",
"Brown"
};
void setup() {
// Robojax.com RGB LED code 20181006
Serial.begin(9600);
// declare pin 11,12, 13 for RED , GREEN and BLUE to be an output:
pinMode(RED, OUTPUT);
digitalWrite(RED,LOW);// turn RED led off
pinMode(GREEN, OUTPUT);
digitalWrite(GREEN,LOW);// turn RED led off
pinMode(BLUE, OUTPUT);
digitalWrite(BLUE,LOW);// turn RED led off
}
// the loop routine runs over and over again forever:
void loop() {
// Robojax.com RGB LED code 20181006
for(int j=0; j<8; j++)
{
RGB_LED(color[j][0], color[j][1], color[j][2]);
Serial.println(colorName[j]);
delay(colorTime);// delay for each color
}
}
/*
sends correct value to R, G and B and LED pin
@param r is received red value
@param g is received green value
@param b is received blue value
*/
void RGB_LED(int r, int g, int b)
{
analogWrite(RED, r);// set value for RED LED
analogWrite(GREEN, g);// set value for GREEN LED
analogWrite(BLUE, b);// set value for BLUE LED
}