IRRemote library, sending DVD codes.

Using Arduino Programming Questions
1

I'm using this library to send some commands to my DVD player. I've been able to use the library to recognize codes, I had an RC car controlled by a TV remote. But sending codes I don't quite get. I just need to send the power code and play code.

This is what the IRrecDump sketch gives me for the power button:

E144827D
Decoded NEC: E144827D (32 bits)
Raw (68): 3236 9150 -4450 600 -1650 650 -1650 600 -1650 600 -500 650 -500 600 -500 600 -500 650 -1650 600 -500 600 -1650 650 -500 600 -500 600 -500 650 -1650 600 -500 600 -500 650 -1600 650 -500 600 -500 650 -500 600 -500 600 -500 650 -1650 600 -500 600 -500 650 -1650 600 -1650 600 -1650 650 -1600 650 -1650 600 -500 600 -1650 650

and the play button:

E1447A85
Decoded NEC: E1447A85 (32 bits)
Raw (68): -15260 9150 -4450 650 -1600 650 -1600 650 -1650 650 -450 650 -450 650 -500 650 -450 650 -1600 650 -500 650 -1600 650 -450 650 -500 650 -450 650 -1600 650 -500 650 -450 650 -500 600 -1650 650 -1600 650 -1600 700 -1600 600 -500 650 -1600 650 -500 600 -1650 650 -450 650 -500 600 -500 650 -450 650 -1650 600 -500 650 -1600 650

I'm not sure if I need to keep track of all those numbers or if I can just use the hex code. When I made the RC car I just used the decoded number in decimal form. I've been trying lots of stuff but so far nothing seems to work.

Thanks

2

This is adapted from the example code and sends the power and play button with 1 second delay in between.

#include <IRremote.h>

IRsend irsend;

void setup()
{
}

void loop() {
  int i;
  for (i = 0; i < 3; i++) {
    irsend.sendNEC(0xE144827D, 32); // Power button
  }
  delay(1000);
  for (i = 0; i < 3; i++) {
    irsend.sendNEC(0xE1447A85, 32); // Play button
  }
  delay(1000);
}
3

Thanks.
I was a bit confused by that example code. Is there already a defined pin for the output? Or do I still need to define one?

4

Yes, there is. On the UNO it's pin 3 (it has to be a PWM output pin of timer 2).

5

Aha! Thank you. Next time I will consider spending a few minutes reading instead of hours of trial and error... Maybe.