Flash an RGB led with a Pic 18F4520

In this example we will connect an RGB led to our Pic 18F4520 Port D. We will then light the red, green and blue individually. We will connect this up as follows

DO - RED LED
D1 - GREEN LED
D2 - BLUE LED

 Lets see a simple schematic of this  

Schematic  Code


This was written using mikroC Pro for PIC, a free evaluation version is available from http://www.mikroe.com/mikroc/pic/
/*
* Project name:
RGB led
*/
void main() {
TRISD = 0; // set direction to be output
do {
LATD = 0xFF; // Turn OFF LEDs on PORTB, common anode RGB LED
Delay_ms(200); // 1 second delay
LATD = 0xFE; // Turn ON RED LED
Delay_ms(200); // 1 second delay
LATD = 0xFF; // Turn OFF LEDs on PORTB, common anode RGB LED
Delay_ms(200); // 1 second delay
LATD = 0xFD; // Turn ON GREEN LED on PORTB
Delay_ms(200); // 1 second delay
LATD = 0xFF; // Turn OFF LEDs on PORTB, common anode RGB LED
Delay_ms(200); // 1 second delay
LATD = 0xFB; // Turn ON BLUE LED
Delay_ms(200); // 1 second delay
LATD = 0xFF; // Turn OFF LEDs on PORTB, common anode RGB LED
Delay_ms(200); // 1 second delay
} while(1); // Endless loop
}

attiny pinout

Another excelelnt pinout, this time for an ATtiny , again from http://pighixxx.deviantart.com/gallery/

atmega328 pinout

This is an excellent atmega328 pinout from http://pighixxx.deviantart.com/gallery/

Attiny85 LED flasher

 This simple flashes and led connected to an Attiny


Schematic

Code

The code was written in Atmel Studio

#include <avr/io.h>
#define F_CPU 1000000UL
#include &lt;util/delay.h&gt;

// Define the I/O port to be used for the LED.
#define LED_PORT PB3
int main(void) {
// Set the LED port number as output.
DDRB |= (1 &lt;&lt; LED_PORT);
// Start infinite loop.
while (1)
{
// Set the LED bit to "1" - LED will be "on".
PORTB |= (1 &lt;&lt; LED_PORT);
// The delay function simply does N-number of "empty" loops.
_delay_ms(200);
// Set the LED bit to "0" - LED will be "off".
PORTB &amp;= ~(1 &lt;&lt; LED_PORT);
_delay_ms(400);
}
return (0);
}


And another way

#include <avr/io.h>
#define F_CPU 1000000UL
#include <util/delay.h>

// Define the I/O port to be used for the LED.
#define LED_PORT PB3
int main(void) {
// Set the LED port number as output.
DDRB |= (1 << LED_PORT);
// Start infinite loop.
while (1)
{
// Set the LED bit to "1" - LED will be "on".
PORTB |= (1 << LED_PORT);
// The delay function simply does N-number of "empty" loops.
_delay_ms(200);
// Set the LED bit to "0" - LED will be "off".
PORTB &= ~(1 << LED_PORT);
_delay_ms(400);
}
return (0);
}