[Non-NASA] Test Beep - Not Important (AJ050NCJ2EG)

[TCB13]

I've noticed that my remote has the ability to "beep" the unit for testing:

This isn't an important feature but could be an interesting way to have a test button on ESPHome to quickly identify indoor units. Attaches you may find the log produced by unit 01 while making the beep.

BEEP.txt

[lanwin]

@matthias882 did you have an idea how to find witch message triggers the beep?

[matthias882]

No, my remote ha no beep-button.
In the log there are many more messages with commands i don't have in my communicatioin.

who is source "CC"?
[11:56:03][W][samsung_ac:340]: MSG: {src:cc;dst:c8;cmd:19;raw:000300007c007a3028}
[11:56:03][W][samsung_ac:032]: RAW: 32c8d0c60100040200000000d934

ist there something else on the bus than 2 indoor and 1 outdoor units?

[TCB13]

ist there something else on the bus than 2 indoor and 1 outdoor units?

No. I assume CC is the outdoor unit... but I might be wrong as the other messages say C8.

[matthias882]

the outdoor-unit should be the c8
in my system (2xIU and 1xOU) only the c8 talks to the inoor units

here the c8 as master starts the conversation to cc and gets an answer from cc

[11:56:05][W][samsung_ac:032]: RAW: 32c8cc0f00470047004800470434
[11:56:05][W][samsung_ac:340]: MSG: {src:c8;dst:cc;cmd:0f;raw:004700470048004704}
[11:56:05][W][samsung_ac:032]: RAW: 32ccc81500000000fe0cfe0c1134
[11:56:05][W][samsung_ac:340]: MSG: {src:cc;dst:c8;cmd:15;raw:00000000fe0cfe0c11}

there is a fourth device on the bus

[TCB13]

there is a fourth device on the bus

I only have the outdoor unit and two indoor units. And yes, I oversaw the installation of the units.

What about the ESP itself? How does it speak? What's it's ID?

[matthias882]

the esp currently talks as D0 and nobody asked him before ;) D0 should normaly be the SNet PCSoftware.

I think there is some other device in the outdoor unit, c8 is the mainboard and cc some additional thing connected to the mainboard by the bus.

But back to he topic. There is the possibility hat the beep commands don't go over the bus. The infrared-remote says to he indoor-unit that it has to beep. There is no need for the IU to tell it to someone else. Its a thing only between the remote and the IU I think.

[TCB13]

I think there is some other device in the outdoor unit, c8 is the mainboard and cc some additional thing connected to the mainboard by the bus.

That would be very interesting to find. I assume the wires up top (white protection) are the connection to the main board.

To be fair there are two wires coming from there, but I don't see where they go.

I would disassemble the unit further in hopes to find why there are two wires but as you will see on the following picture I can't remove the top cover and peak inside it easily.

There is the possibility hat the beep commands don't go over the bus. The infrared-remote says to he indoor-unit that it has to beep. There is no need for the IU to tell it to someone else. Its a thing only between the remote and the IU I think.

That's totally possible. This is one of those less important things, it could've been great to help identify indoor units but not a requirement at all.