So to get NetFlix started om my Sony blue ray player; I have to press the power button WAIT, then press the NetFlix button WAIT then the select button. It takes about 1 minute of waiting for things to load. So I made a small nerdkits powered IR remote that at the push of a button will start up NetFlix while I'm free (to help get dinner ready). I used a IR receiver to reverse engineer the digital signal produced by the remote this site helped a lot. I did a lot to make the circuit low power so I could use a coin cell battery. Then designed a PCB to use the 328p QFP chip and stuck the board to the side of my coffie table.

code:

// for NerdKits with ATmega328 //
// This program emulates a Sony remote. When the button is pressed it emulates pressing
// the power button, then pauses then presses the NetFlix Button, then pauses then
// presses the select button. There is a lot of power saving going on.
// The IR "ON" signal is a 40kH square wave, and OFF is just the LED Off
// The protocol is explained here http://www.sbprojects.com/knowledge/ir/sirc.php

// PD2 is input button
// PB2 is to the IR LED
// PB3 is a trouble shooting pin

#include "/home/garrett/Libraries_Mine/Lib.h"

#define TroubleShootPin B,3

#define IRHigh DDRB |= (1<<PB2)
#define IRLow  DDRB &= ~(1<<PB2)

#define ShortWait 570
#define LongWait 1100
#define SonyPower   0b00000000000010101000101101000111      // The power button command
#define SonyNetFlix 0b00000000000011010010101101000111      // The NetFlix button command
#define SonySelect  0b00000000000010111100101101000111      // The select button command

void PWM_INT(void)
{
    /// Set up PWM output on PB2 ///
    DDRB |= (1<<PB2);
    OCR1A = 45;
    TCCR1A = (1<<COM1B1) | (1<<WGM11) | (1<<WGM10);
    TCCR1B = (1<<WGM13) | (1<<WGM12) | (1<<CS11);
    OCR1B = 22;

    IRLow;

    return;
}

void SonyCommend(uint32_t Command)
{
    uint32_t k;
    uint8_t h;

    for(h=0;h<3;++h)
    {
        IRHigh;
        delay_us(2350);
        IRLow;
        delay_us(ShortWait);
        for(k=0b10000000000000000000;k;k>>=1)
        {
            IRHigh;

            if(Command & k)
                delay_us(LongWait);
            else
                delay_us(ShortWait);

            IRLow;
            delay_us(ShortWait);
        }
        delay_ms(12);
    }

    return;
}

int main()
{
    // Set pin state //
    OUTPUT(TroubleShootPin);
    CLEAR(TroubleShootPin);

    PWM_INT();

    // Make PD2 the wake up button interrupt //
    DDRD &= ~(1<<PD2);
    PORTD |= (1<<PD2);
    PCICR |= (1<<PCIE2);
    PCMSK2 |= (1<<PCINT18);
    sei();          // Enable interrupts

    // Save power //
    PRR = (1<<PRTWI)        // turn off TWI
        | (1<<PRTIM2)       // turn off Timer/Counter 2
        | (1<<PRTIM0)       // turn off Timer/Counter 0
        | (1<<PRSPI)        // turn off Serial Peripheral Interface
        | (1<<PRUSART0)     // turn off USART0
        | (1<<PRADC);       // turn off ADC

    // Set sleep mode //
    set_sleep_mode(SLEEP_MODE_PWR_SAVE);
    sleep_mode();

    while(true)
        sleep_mode();

    while(true);

    return 0;
}

/// Wake up Button pressed ///
ISR(PCINT2_vect)
{
    if(!(PIND & (1<<PD2)))
    {
        delay_ms(10);
        SET(TroubleShootPin);

        SonyCommend(SonyPower);
        delay_ms(40000);
        SonyCommend(SonyNetFlix);
        delay_ms(40000);
        SonyCommend(SonySelect);

        CLEAR(TroubleShootPin);
    }

    return;
}

Cant get the picture to be embeded PIC

Nice looking board!!

Ralph

scootergarrett-

Sweet little board-- don't you LOVE electronics? Well done.

BM

Nice work. I love projects like that. Well done.