Flashing and Configuring Micro IR Blaster (Ali 1005006823624599) with BK7231N

Similar to many others, here is a small IR receiver/transmitter courtesy of atc1441 (though the one he posted about looks different).
I bought this one in late 2024, seems to be still available for $7 on Ali, 1005006823624599
The whole device is just 38 mm diameter, 15 mm thick.

It has a BK7231N on the common CBU board. Four IR leds on top, and a receiver. Blue status LED and a button on the bottom.
Trivial to flash with a USB-serial device, the pins are labelled underneath the board. I usually solder some 30 gauge wires to them.





Config:

>>21573835
Now I'd like to ask for some help... the remote blaster above is working fine for my TV remote decoding various codes. But for my AC remote it simply doesn't work.
Summary of my frustrating questions in this AI discussion though I think the AI is dreaming up the build v1.18.130 and probably some other things.

I've tried turning on all the IR flags. Commands like set IRdebug 1 are not supported. Roughly the same messages come out on MQTT. All the forum posts on IR are quite old. I would be happy with some sort of RAW capture - I only want to send three commands for the AC (on-cool-lowfan-16C ; on-fan-lowfan ; off)

Is the (raw) buffer too small for this remote? Is there a nightly/alpha build that has the latest IR in it, or can you recommend a modification that I can build, that will receive this remote control?

Thank you!

With v1.18.110 the remote produces codes like this in the log:


My autoexec.bat:


My config:

any different with the irRemoteESP version?

https://github.com/openshwprojects/OpenBK7231....110/OpenBK7231N_QIO_1.18.110_irRemoteESP.bin
https://github.com/openshwprojects/OpenBK7231...1.18.110/OpenBK7231N_1.18.110_irRemoteESP.rbl

Thanks - that is quite different.
Now I get something on every remote press.

Unfortunately the data is different every time:
info:ir:ir unknown ffffffff,0xf3963672,172
info:ir:ir unknown ffffffff,0x8301fb23,172
info:ir:ir unknown ffffffff,0x928f624f,172
info:ir:ir unknown ffffffff,0xbeb94b2f,172
info:ir:ir unknown ffffffff,0xc21ea93,172
info:ir:ir unknown ffffffff,0xa620bed1,172
info:ir:ir unknown ffffffff,0xc0311423,172
info:ir:ir unknown ffffffff,0xf187fb6b,172
info:ir:ir unknown ffffffff,0x981bd6be,172
info:ir:ir unknown ffffffff,0x5019b230,172
info:ir:ir unknown ffffffff,0xea55b743,172
info:ir:ir unknown ffffffff,0xf561a712,172
info:ir:ir unknown ffffffff,0x9b520955,172
info:ir:ir unknown ffffffff,0x821ba9ff,172

Occasionally when the signal is strong it will decode it as KELON168? but then the debug doesn't print out the decoded result (bad CRC?).


Info:IR:Received AC code:KELON168
Debug:IR:IR fire event took 0ms
Info:IR:IR Unknown ffffffff,0x6CA9AFD2,172
Info:IR:Received AC code:KELON168
Debug:IR:IR fire event took 0ms
Info:IR:IR Unknown ffffffff,0x41E59780,172
Info:IR:Received AC code:KELON168
Debug:IR:IR fire event took 0ms
Info:IR:Received AC code:KELON168
Debug:IR:IR fire event took 0ms
Info:IR:IR Unknown ffffffff,0x7771B42A,172

Turning on flag 14, I get this on MQTT
70,0x83060302000080000000000000810002000008000A
Corresponding to this in the log:
Info:IR:Received AC code:KELON168
Info:IR:IR MQTT publish �A took 2ms
Debug:IR:IR fire event took 0ms

Could you suggest the next steps please?

bkespoke wrote:

Could you suggest the next steps please?

hmm, not really sure what next. I have not had any experience with the irRemoteESP version.

I wonder if powersave can have an effect on it like with standard ir version. Do you have powersave 1 set?

Thanks again. Powersave does seem to have an impact but it was off.

I have powersave 0 (I tried powersave 1, then the powersave messages appear everywhere in the logs, which I haven't seen before. Powersave 1 also causes a known-good remote to read garbage, while powersave 0 it decodes something most of the time.

Interesting, the odd times it fails to decode the working remote, the hex values are just garbage.

Hex values from my AC remote are always garbage, no pattern.

But asking about the very occasional successful decodes, they all say:
Info:IR:Received AC code:KELON168
for any button on the remote. Whereas with the working TV remote I get various codes.
Does this mean it's just an accidental decode?

hmm. not sure.
poking @p.kaczmarek2 and @DeDaMrAz who I think co-authored the irESP variant

from this post onwards - a bit of IR context and current known issues:
https://www.elektroda.com/rtvforum/topic4093142-300.html#21605592