如何使用 2ms 计时而不是默认 5ms 的不记录? [英] How to use irrecord with 2ms timing instead of the default 5ms?

问题描述

我正在尝试在我的 Raspberry Pi 上教我的热泵远程代码 - 三菱电机 MSZ-GE60VA(远程是 SG10A 1833)

I'm trying to teach lirc on my Raspberry Pi the remote-codes for my heat pump - a Mitsubishi Electric MSZ-GE60VA (remote is SG10A 1833)

我按如下方式运行记录:

I run irrecord as follows:

sudo /etc/init.d/lirc stop
irrecord -d /dev/lirc0 heatpump

我习惯于按按钮等操作，并适时地这样做.

I get the usual cruft about pushing buttons, etc, and duly do so.

在几个点(并不总是相同的数字)之后，记录错误信息如下:

After several dots (not always the same number), irrecord bails with the following error message:

irrecord: could not find gap.
irrecord: gap not found, can't continue

现在，我在其他地方发现采样率可能是错误的，并使用 xmode2 查看波形 - 我已经这样做了.我敢肯定，如果我能像 xmode2 那样更快地获得不记录的采样，我会更幸运.

Now, I've found elsewhere that the sample rate might be wrong, and to look at the waveform using xmode2 - which I've done. I'm pretty sure I'd have more luck if I could get irrecord to sample faster, as xmode2 can.

有什么想法吗?(注意:我也使用了强制选项，没有区别)

Any ideas? (NB: I've run with the force option too, and no difference)

这是我使用 xmode2 的结果 - 您可以看到 5 毫秒的样本无法真正使信号出现正面或反面，但 2 毫秒的样本可以.

Here are my results using xmode2 - you can see the 5ms sample can't really make heads or tails of the signal, but the 2ms sample can.

5ms 示例 http://jnawk.net.nz/5ms.png 5ms 示例(默认)

5ms sample http://jnawk.net.nz/5ms.png 5ms sample (default)

2ms 示例 http://jnawk.net.nz/2ms.png 2ms 示例

推荐答案

首先尝试使用

irrecord -f -d /dev/lirc0 ~/lirc.conf

-f 将强制使用原始模式.如果你很幸运，会生成配置文件或列出差距.

-f will force the raw mode. If you're lucky that will generate the config file or at list the gap.

否则，启动下面的命令并 ctrl^c 停止转义/停止录制.

Otherwise, launch the command below and ctrl^c to stop escape / stop recording.

mode2 -m -d /dev/lirc0 > ~/lirc.conf

-m 选项应生成格式化的原始数据.删除第一个值，即按下远程按钮之前的延迟.

the -m option should generate formated raws. remove the first value which is the delay before you pressed the remote button.

如果您不使用 -m 选项，您可以使用 VI 来实现.

if you don't use the -m option you can do it with VI.

vim ~/lirc.conf
:%s/^.{5}
:%s!^!    !
:%s/
/

完成 ~/lirc.conf 文件以获得如下内容:

complete the ~/lirc.conf file to obtain something like :

begin remote

   name  MY_REMOTE
   flags RAW_CODES
   eps            30
   aeps          100

   frequency    38000
# note ensure the modulation frequency above correctly matches your remote, default is set to 38kHz
# you can also try other common frequencies (36000,40000,56000) if you are unsure

       begin raw_codes

           name MY_TEST
...<<PUT THE RAW CODE HERE >>...  

    end raw_codes
end remote

没有 TAB，文件中只有空格.

No TAB, only spaces in the file.

备份原始的 lircd.conf 文件

Make a backup of the original lircd.conf file

sudo mv /etc/lirc/lircd.conf /etc/lirc/lircd_original.conf

复制您的新配置文件

sudo cp ~/lircd.conf /etc/lirc/lircd.conf

再次启动lirc

sudo /etc/init.d/lirc start 

试试看

irsend SEND_ONCE MY_REMOTE MY_TEST 

使用手机摄像头检查 LED 是否亮起.

check with your phone camera the led is lighting.

这对某些人有效...

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