Determining which raw IR code to use for AC

Question

I'm new on this so go easy on me.

I'm trying to make an IR blaster to control my TV and ACs. I realized that when I capture the IR code, power button/temp up and down/mode send raw codes that are almost similar to each other.

I've searched the net(maybe missed some answers) and came through this. The raw IR code provided on the blog did turned on my AC but I wasn't able to turn it off. So I think that the code isn't the power button. That's because I remember leaving the AC off at 23°C and when I send that code, my AC started at 20°C.

So, how do I know which code to use for off, temp up etc? The codes I captured seems not to work when I send the codes to the AC. Nothing happened. No beep or anything. I'm using a GREE AC by the way.

Here's an example of the raw code that turned on my AC:

uint16_t irACon1[139] = {9050, 4500, 800, 1600, 750, 550, 700, 550, 700, 1600, 750, 550, 700, 550, 700, 550, 700, 550, 700, 550, 700, 550, 700, 1600, 750, 550, 700, 550, 700, 550, 700, 550, 700, 550, 700, 550, 700, 550, 700, 550, 700, 550, 700, 550, 700, 1600, 750, 1600, 750, 550, 700, 550, 700, 550, 700, 550, 700, 550, 700, 1600, 750, 550, 700, 1600, 750, 550, 700, 550, 700, 1600, 750, 550, 700, 19950, 750, 500, 700, 550, 700, 550, 700, 550, 700, 550, 700, 550, 700, 550, 700, 550, 700, 550, 700, 550, 700, 550, 700, 550, 700, 550, 700, 1600, 750, 550, 700, 550, 750, 550, 700, 550, 700, 550, 700, 550, 700, 550, 700, 550, 700, 550, 700, 550, 700, 550, 700, 550, 700, 550, 700, 550, 700, 1550, 800, 550, 750, 500, 700, 1600, 750};

And few other codes that I had captured:

Raw: (139) 9068, -4404, 708, -1580, 712, -488, 712, -484, 712, -1580, 712, -1580, 708, -1580, 712, -488, 708, -488, 708, -1584, 708, -1584, 708, -1580, 708, -492, 708, -488, 704, -496, 704, -492, 708, -492, 708, -492, 704, -492, 708, -492, 708, -488, 712, -488, 712, -1580, 708, -1580, 712, -488, 712, -484, 712, -488, 712, -488, 712, -484, 712, -1580, 712, -484, 712, -1580, 712, -484, 716, -484, 712, -1580, 712, -484, 712, -19848, 684, -512, 704, -496, 708, -492, 708, -488, 708, -492, 708, -488, 712, -488, 712, -488, 708, -488, 712, -488, 712, -484, 712, -488, 712, -488, 708, -1580, 712, -488, 712, -484, 712, -488, 708, -488, 712, -488, 712, -488, 708, -488, 712, -488, 708, -488, 712, -488, 712, -488, 708, -488, 712, -488, 708, -492, 708, -488, 708, -492, 708, -1584, 704, -1584, 708, 
Raw: (139) 8988, -4540, 556, -1736, 564, -688, 520, -676, 524, -652, 548, -1688, 600, -1688, 604, -648, 548, -652, 548, -1688, 604, -1684, 604, -1688, 604, -648, 548, -652, 548, -648, 548, -652, 548, -652, 548, -648, 548, -652, 548, -652, 548, -648, 548, -676, 524, -1688, 600, -1688, 604, -676, 520, -676, 524, -676, 524, -672, 524, -676, 524, -1712, 576, -680, 520, -1688, 604, -756, 440, -788, 412, -1688, 600, -816, 384, -20092, 468, -840, 348, -848, 352, -848, 352, -820, 384, -812, 388, -788, 412, -784, 412, -784, 416, -760, 440, -760, 436, -760, 440, -756, 444, -756, 440, -1824, 468, -780, 416, -760, 440, -756, 444, -728, 468, -732, 468, -728, 472, -700, 496, -704, 496, -700, 496, -676, 524, -676, 520, -652, 548, -648, 552, -624, 572, -624, 576, -620, 580, -1740, 548, -620, 580, 

PS: Sorry for my bad English. And I somehow feel that the title isn't specific so let me know if there's a better title I should put.

UDPATE: Now the off and temp up is working but the temp is somewhat like an on button. It instantly put my AC on 23°C and won't increase when pressed multiple time. I understand that AC's remote fires the whole setup string when a button is pressed so which means different temps has different codes?

Answer 1

It appears from the data you've posted, the remote is holding the presets for what the A/C unit needs to be doing when after every button is pressed. This will keep the remote with LCD disply? in Sync with the A/C master.

Ie. The remote is sending an entire setup string EVERY time ANY button is pressed.

Can you post a capture of an ON and OFF Raw's only? Do not press any other buttons after pressing ON, or before pressing OFF.

• Calvin9: I see. But surely there's a way to know which raw code control what, isn't it? And here's the on and off raw code: pastebin.com/sKVWecLh
• Spannerz: You are on the right track, but I think you need an expert for a better answer.