IRSend RAW Encoding - seurat-atreides/Sonoff-Tasmota GitHub Wiki

There are two command syntax forms for sending a remote control code in RAW format with IRsend:

IRSend <frequency>,<rawdata1>,<rawdata2>,..,<rawdataN>

e.g., IRsend 0,926,844,958,832,1798,868,902,848,900,870,900,852,908,918,958,794,934,874,928,1738,934,856,1764
IRSend raw,<frequency>[,<header_mark>,<header_space>,<bit_mark>],<zero_space>[, [<one_multiple>] | <one_space>],<bit_stream>

Where

Parameter	Description
`<frequency>`	carrier frequency (default 0 = 38kHz)
`<header_mark>`	header mark duration (µs) (optional for some protocols)
`<header_space>`	header space duration (µs) (optional for some protocols)
`<bit_mark>`	bit mark duration (µs) (optional for some protocols)
`<zero_space>`	zero space duration (µs)
`<one_multiple>`	used to specify the one space duration if the one space duration is an integral multiple of the zero space duration. This parameter may be omitted if the multiple is 2. Use of this parameter is mutually exclusive with the `<one_space>` parameter
`<one_space>`	one space duration (µs). Use this parameter if the one space duration is not an integral multiple of `<zero_space>` Use of this parameter is mutually exclusive with the `<one_multiple>` parameter
`<bit_stream>`	bit stream data (stream of ones and zeroes)

This command syntax version makes use of the output of the raw IR decoder from ToniA/Raw-IR-decoder-for-Arduino

Examples for bitstream command syntax

rawirdecode output:

Number of symbols: 75
Symbols:
Hh010101101000111011001110000000001100110000000001100000000000000010001100
Bytes:
00:  0101|0110 | 6A | 01101010
01:  1000|1110 | 71 | 01110001
02:  1100|1110 | 73 | 01110011
03:  0000|0000 | 00 | 00000000
04:  1100|1100 | 33 | 00110011
05:  0000|0001 | 80 | 10000000
06:  1000|0000 | 01 | 00000001
07:  0000|0000 | 00 | 00000000
08:  1000|1100 | 31 | 00110001
6A,71,73,00,33,80,01,00,31
Timings (in us):
PAUSE SPACE:  0
HEADER MARK:  8620
HEADER SPACE: 4260
BIT MARK:     544
ZERO SPACE:   411
ONE SPACE:    1496
Decoding known protocols...
Unknown protocol
Bytecount: 9

Corresponding command:

IRSend raw,0,8620,4260,544,411,1496,010101101000111011001110000000001100110000000001100000000000000010001100

Gree air conditioner Power On

{8956, 4560, 546, 1710, 588, 616, 584, 618, 584, 1712, 586, 1712, 588, 614, 586, 614, 586, 618, 586, 1706, 590, 616 , 586, 1708, 590, 616, 588, 610, 590, 612, 590, 612, 590, 618, 584, 618, 584, 616, 586, 614, 588, 612, 590, 612, 590, 1712, 586 , 616, 588, 612, 590, 614, 588, 614, 586, 618, 586, 616, 586, 1710, 588, 614, 586, 1708, 590, 610, 592, 612, 590, 1708, 588, 614 , 588, 20084, 548, 612, 590, 614, 588, 614, 588, 616, 586, 654, 546, 616, 586, 616, 586, 614, 588, 612, 588, 610, 592, 612, 590 , 612, 590, 614, 586, 1712, 586, 616, 586, 612, 588, 614, 588, 614, 586, 616, 586, 612, 590, 614, 588, 610, 590, 616, 586, 614 , 588, 612, 590, 612, 590, 614, 588, 614, 588, 614, 588, 1708, 590, 612, 590, 1708, 590}

Arrange the data into pairs:

MARK	SPACE	BIT
8956	4560	(header)
546	1710	1
588	616	0
584	618	0
584	1712	1
586	1712	1
588	614	0
586	614	0
...
590	612	0
590	614	0
588	614	0
588	614	0
588	1708	1
590	612	0
590	1708	1
590		(ignore)

The header is always the first pair, the zeroes have the shortest space duration and the ones have the longest space duration.

header mark is 8956
header space is 4560
bit mark, get the average, say 590
zero space, say 615
one space, say 1710