How to know the frequency/technology used in a remote?

https://www.nirsoft.net/utils/bluetooth_viewer.html

I’ll give that a try when I get home. Thanks!

As soon as the download started the anti virus software stopped the download of that software.

EDIT, no I downloaded the wrong file. This one seems fine. I hope…

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Tried it yesterday for a little while but I don’t think it’s bluetooth.
Or there was something with hardware/software.

The software claimed it saw my old phone that has been switched off for months.
And only when I asked windows to scan for bluetooth devices did it find some more.
But not the remote.

And I’m not sure the computer has Low energy capabilities. Maybe the remote is LE?
I could see some mentions of LE looking in the control panel of windows but not sure if that is windows has LE or the hardware has LE.

I’ll see if I can find the antenna and try and use that.

Picked apart the remote today and this is what I found (No IR diod for sure…).

As I see it K1, K7, K8 and K9 seems to have a common ground.
So with that in mind I figured the way to trigger the remote was to ground the pins on the board.

Some of the pins “do” something but not sure what.
One of them just makes the LED light up and one makes the TV mount beep.
But I can’t find any that makes it move.

Nevermind I got it working.
It just needed to be grounded for a longer period.

From the bottom (or left on my picture) it’s the third pin for down and forth pin for up.

Have not yet managed to make it stop (OK button) but I don’t think I will need it.

Is there an FCC # on the back? If you look that # up, it will provide the frequency. I have a crappy ceiling fan that is using an RF remote and I couldn’t get my Bond Hub to link. I had to manually add it and that FCC # was crucial.

If the same product is sold in the US, the FCC will have info on it. Searching for RF01-P10101 I found this:
Lumi Legend Remote Control RMT-02 FCC ID 2AG62RMT-02
Says it is 2.437GHz.

Internal photos look exactly like your remote.
RMT-02 Remote Control Teardown Internal Photos Lumi Legend (fccid.io)

I couldn’t make out the markings on the chip in your photo, too blurry. In the FCC photos, I can see it is a Beken BK2461. I found this identical (except for the PCB color) MCU: 2.4Ghz BK2461 UART Wireless Transparent Transmission Module (120M, 121 Channel) (iot-rf.com)

Also found the datasheet for the chip: BK2461 datasheet(32/97 Pages) ETC2 | MCU+RF (alldatasheet.com)

Confirms it’s 2.4GHz.

It does not have any FCC label.
I have a feeling remotes (and other “stuff”) has to declare it’s frequency in manual and/or product over here in EU too. But it seems these has not.

if it’s 2.4 GHz and the my computer didn’t find the bluetooth signal that could mean it’s either not bluetooth at all, or that it’s LE and my computer does not support that.

Either way now I just need to solder on two optocouplers to control it.
And figure out a way to know the TV’s current state.
I got distance and accelerometer to choose from as far as I know. Or am I missing something?

I never said it was Bluetooth. 2.4GHz is unlicensed spectrum. Bluetooth and WiFi are 2 things that operate in that spectrum, along with tons of other things.

The links I found tell you everything you need to know about it. “low-power, high-bandwidth wireless UART module operating in 2.4GHz ISM band.”

Not said it is bluetooth. 2.4 GHz is unregulated, Wifi, Zigbee, bluetooth, microwaves, … use it.

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That is exactly what I wrote.

@Hellis81 Have you been able to progress with this project? I have the same remote and would love to learn from prior experience.

Not yet.
Have been busy with Christmas and all that.

But I know I can control the remote from an ESP, I have figured that out.
The issue I have now is that the rotary encoder and display does not fit the box I have, my plan is to try and trim off some excess material from the parts to make them fit.

But been busy with other things and haven’t had time with hobby projects.

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Gotcha, I know that well.

Please do update the thread when you do make progress. In the meantime I’ve also found this thread, which might help me when I finally do find some time for hobby projects. Control RF TV Lift using IR Remote using Arduino (build a remote for the remote) - Project Guidance - Arduino Forum

That is exactly how I was planning on doing it, but with an ESP instead.

Only difference is that I was planning on having a touch display to control it also and a rotary encoder to control the volume of the Chromecast.

Just got it to run with a similar solution! Used an ESP8266 with GPIO pins driving a couple of relays to toggle preset memory buttons on the remote. ESPHome made it quite easy to set up, program and interface with HA. I have a LG tv on the mount, which when turned on triggers the automation to lower the stand using the setup. Works pretty well!

@vinaykashya can you share any more info about how you attached to the remote buttons (maybe a pic?). I’m about to do the same thing and would love a starting point.

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@vinaykashya Please, could you post a photo and the source code you used? We appreciate it.

@Hellis81 Did you get how to connect remote controller with ESP? sorry for inconvenience…