Re: lirc - Send doesn't work e.g. ir-ctl -stv.ir

[Mariusz F. <mf...@fa...>]

@Sean Thank you fro your help - moving to pwm-ir-tx for sending (receive 
was OK) - /boot/firmware/config.txt:
dtoverlay=pwm-ir-tx,gpio_pin=18
dtoverlay=gpio-ir,gpio_pin=22



It is working for Raspbery Pi 1 - for TV Samsung, Sound Bar Creative and 
Air Condition!


Thanks for help.

It is part of bigger project: 
https://github.com/MariuszFerdyn/AirConditionIoTCentral - anyway you can 
link it to LIRC links.


Mariusz



On 9/13/2025 5:58 PM, Sean Young wrote:
> On Sat, Sep 13, 2025 at 11:34:59AM +0200, Mariusz Ferdyn wrote:
>> I am using:
>>
>> IR Receiver + Wire - Iduino SE027
>>
>> IR 940nm Transmitter + Wire - Iduino SE028
>>
>>
>> I can record:
>>
>> ir-ctl -rtv.ir -d /dev/lirc1
>>
>> cat tv.ir
>> +4541 -4401 +603 -1622 +623 -1631 +617 -1621 +629 -494 +623 -505 +623 -506
>> +622 -505 +624 -504 +627 -1620 +621 -1623 +629 -1630 +606 -507 +632 -495
>> +621 -504 +623 -505 +625 -504 +622 -505 +624 -1639 +634 -480 +622 -503 +649
>> -481 +622 -506 +621 -506 +623 -505 +649 -1601 +624 -500 +649 -1600 +617
>> -1625 +621 -1627 +619 -1623 +632 -1619 +613 -1623 +646 -24922
>> +4519 -4404 +615 -1624 +618 -1626 +644 -1601 +647 -479 +648 -481 +654 -476
>> +621 -504 +624 -505 +647 -1600 +647 -1599 +622 -1624 +627 -510 +646 -480
>> +645 -491 +606 -508 +620 -502 +649 -477 +626 -1625 +627 -493 +652 -481 +642
>> -486 +630 -496 +645 -475 +622 -503 +622 -1626 +645 -482 +623 -1635 +634
>> -1600 +618 -1625 +620 -1625 +640 -1606 +631 -1617 +647 -27229
>> +4532 -4394 +641 -1607 +610 -1626 +622 -1626 +643 -481 +647 -480 +621 -514
>> +646 -474 +647 -490 +642 -1598 +642 -1600 +643 -1601 +644 -481 +647 -483
>> +657 -470 +644 -482 +648 -482 +644 -482 +647 -1601 +619 -507 +647 -481 +648
>> -479 +627 -502 +643 -483 +644 -485 +643 -1603 +646 -482 +645 -1601 +642
>> -1613 +616 -1620 +645 -1599 +642 -1604 +642 -1603 +655 -19502
>> +4556 -4370 +641 -1605 +642 -1605 +638 -1602 +643 -484 +644 -485 +645 -484
>> +642 -484 +644 -483 +643 -1614 +639 -1596 +639 -1607 +639 -484 +643 -485
>> +643 -484 +644 -485 +656 -472 +643 -487 +642 -1603 +647 -488 +635 -483 +644
>> -483 +642 -485 +643 -488 +652 -474 +643 -1604 +642 -484 +642 -1605 +641
>> -1607 +640 -1615 +636 -1594 +641 -1623 +626 -1601 +640 -21768
>>
>>
>>
>> but when I execute:
>>
>> ir-ctl -stv.ir
>> warning: tv.ir:4: trailing space ignored
>>
>>
>> I see that IR is working (Iduino SE028 has LED and using my mobile camera),
>> but TV is not switching ON.
> That's odd.
>
> 1) The first thing that springs to mind is that you're not
> setting the transmit carrier. This is necx so you could try:
>
> ir-ctl -c 38400 -stv.ir
>
> Note this should be almost equivalent:
>
> ir-ctl -S necx:0x70702
>
> This does not repeat it for four times, but this does:
>
> ir-ctl -S necx:0x70702 -S necx:0x70702 -S necx:0x70702 -S necx:0x70702
>
> 2) What raspberry pi OS and hardware are you using?
>
> 3) Since you're using gpio-ir-tx you need a raspberry pi which isn't ancient.
> Beter to use pwm-ir-tx on a recent kernel.
>
> 4) Can you do ir-ctl -r in one window and ir-ctl -s in another? Is the output
> what you expect?
>
>> cat /etc/lirc/lirc_options.conf
>> # These are the default options to lircd, if installed as
>> # /etc/lirc/lirc_options.conf. See the lircd(8) and lircmd(8)
>> # manpages for info on the different options.
>> #
>> # Some tools including mode2 and irw uses values such as
>> # driver, device, plugindir and loglevel as fallback values
>> # in not defined elsewhere.
>>
>> [lircd]
>> nodaemon        = False
>> driver          = devinput
>> device          = auto
>> output          = /var/run/lirc/lircd
>> pidfile         = /var/run/lirc/lircd.pid
>> plugindir       = /usr/lib/arm-linux-gnueabihf/lirc/plugins
>> permission      = 666
>> allow-simulate  = No
>> repeat-max      = 600
>> #effective-user =
>> #listen         = [address:]port
>> #connect        = host[:port]
>> #loglevel       = 6
>> #release        = true
>> #release_suffix = _EVUP
>> #logfile        = ...
>> #driver-options = ...
>>
>> [lircmd]
>> uinput          = False
>> nodaemon        = False
>>
>> # [modinit]
>> # code = /usr/sbin/modprobe lirc_serial
>> # code1 = /usr/bin/setfacl -m g:lirc:rw /dev/uinput
>> # code2 = ...
>>
>>
>> # [lircd-uinput]
>> # add-release-events = False
>> # release-timeout    = 200
>> # release-suffix     = _EVUP
>>
>> driver    = default
>> device    = /dev/lirc0
>>
>> driver    = default
>> device    = /dev/lirc0
> The lirc daemon is not used at all in your way of doing this. Which makes
> it off-topic for this list.
>
>
> Sean
>