Controlling A/C (Air Conditioner) IR with Arduino Uno

Oren

The page for the library states

It supports NEC, Sony SIRC, Philips RC5, Philips RC6, and raw protocols

It will be referring to TV, DVDs and other consumer products.

Your airconditioner is unlikely to be in that category.

You will need to do some detective work to discover the protocol used.

there is some info on AirCon decoding in the blog

http://www.righto.com/2009/08/multi-protocol-infrared-remote-library.html

and a note at 9 March 2010 regarding buffer length.

The other option is to hack the remote.

Mark

I got a logic and I capture the IR Recevier Data from the Remote:

it seem like the remote Transmit 3 Times.

let say it transmit code A, then the flow is:

1) Transmit A

2) Transmit Invert A (NOT A)

1) Transmit A

I tried to replicate it with my IR LED Still, NO lack....

I even compare it using the IR Receiver... and it looks the same.

I still don't know why, it is not working.

To my eyes 1 and 3 aren't the same.

I'd be doing some digging using google, and looking at the various forums.

You may find someone has already done the necessary.

mark

I don't see any diff between 1 and 3

but thanks, I will continue digging with in other forums

Apologies I hadn't blown it up ....ooops.

Presumably the bottom of the trace is when data is received.

To me it seems there is a 'wakeup' of approx 8mS then a long space of three pulse widths, followed by a single pulse then a space.

If this is right then you have mark, space, mark, mark, space, mark, space etc. OR

1011010111010111010110110101101101110110101111011 which in hex is 16BAEB6B6ED7B

Yet the second data is wakeup, long space, mark, mark, space, mark, mark, mark, space, mark, space mark, mark, mark OR

1101110101110101110110111011011010110111010101101   which in hex is 1BAEBB76D6EAD

Both are 49 bits of data, which may equate to 1 start bit and then 6 x 8bit words or 6 bytes

This could be

1 01101011 10101110 10110110 10110110 11101101 01111011 (6B AE B6 B6 ED 7B)

1 10111010 11101011 10110111 01101101 01101110 10101101 (BA EB B7 6D 6E AD)

1 01101011 10101110 10110110 10110110 11101101 01111011 (6B AE B6 B6 ED 7B)

It could also be that there is x bits for command and then x bits for a data payload

I suggest a few other samples may help to see some form of pattern.

mark

Hi

In case you didn't resolve this, here is some output from our AnalysIR product.

Also, it is not a standard NEC signal as the headers are slightly different.

So you have 2 options

1. change the values in IRremote for the NEC headers to match yours
2. just send from IRremote using the send RAW method

I have included some code snippets below, which was automatically generated from AnalysIR.

(Should work with IRremote on Arduino)

/*
Automatically Generated by AnalysIR - Batch Export Utility
Registered to: xxxxxxxxx
Session History
Type : Key : Value : Bits
0 : RAW :  :  : 0
1 : RAW :  :  : 0
*/
// NB: Not all protocols are supported by IRremote or IRLib. You may need to edit the code below manually
// RAW signals are not supported & are included as dummy commands for reference, only
// Automatically Generated by AnalysIR for xxxxxxxxxxx, visit http://www.AnalysIR.com or email info@....... for further details

unsigned int Signal_0_0[] = {8400,3400,600,1550,600,500,600,1550,600,1550,600,500,600,450,600,1550,600,1600,550,500,600,450,600,1600,550,1600,600,450,600,1550,600,500,600,1550,600,1550,600,1600,600,450,600,1550,600,500,550,500,600,450,600,1600,600,450,600,1550,600,1600,550,500,600,450,600,500,600,1550,600,400,600,1000}; //AnalysIR Batch Export - RAW
irsend.sendRaw(Signal_0_0, sizeof(Signal_0_0)/sizeof(int), khz); //AnalysIR Batch Export - RAW
 // AnalysIR IR Protocol: RAW, Key:  

unsigned int Signal_1_1[] = {8350,3450,550,1600,600,500,550,1550,600,1600,600,500,550,500,550,1600,600,1550,600,500,550,500,600,1550,600,1550,600,500,600,1550,600,500,600,1550,550,1600,600,500,550,1600,550,500,600,500,550,500,600,500,550,1550,600,500,550,1600,600,1550,600,500,600,450,600,500,550,1600,550,500,550,1000}; //AnalysIR Batch Export - RAW
irsend.sendRaw(Signal_1_1, sizeof(Signal_1_1)/sizeof(int), khz); //AnalysIR Batch Export - RAW
 // AnalysIR IR Protocol: RAW, Key: 

You can find out about AnalysIR here

Let me know if it works for you & what model AC this is...tnx