LSC Smart Digital LED Strip (2x5m RGBCW): BK7231N, SM16703P Chipsets, IR Receiver & More

Hi,

I'm starting to work on the "LSC Smart Digital Led Strip" which is a dual led RGBCW strip.



On the board we have:
- a BK7231N
- a button (P7)
- a microphone (ADC on P23)
- an IR receiver (digital on P26)



It controls 2 rubans plugged in parallel with:
- CC leds (PWM on P24)
- CW leds (PWM on P9)
- RGB leds
- Multiple SM16703P chipsets, each controlling 6 RGB plugged in parallel
- SM16703P chipsets are plugged in serial and controlled by P16



The rubans have 5 pins:
- Green: GND
- White: VCC (24V) controlled by P6
- Blue: digital RGB (see below)
- Black: CC leds
- Red: CW leds

The button, microphone, IR receiver, CC and CW leds are easy to use, as usual, with OpenBeken.

The RGB leds are problematic for now as SM16703P chipsets are not yet supported by OpenBeken.
See https://github.com/openshwprojects/OpenBK7231T_App/issues/176

The SM16703P datasheet can be found here: https://www.gree-leds.com/web/userfiles/download/SM16703ICdatasheet.pdf

Adrien

Hello, that's a very interesting device. I have never seen a double RGB strip before.

I haven't looked at the datasheets yet, but are the timings of SM16703P the same as WS2812?

I might have some WS2812 around, so I could get a driver up to speed relatively quickly.

I have no idea about the timings as I've never worked directly with WS2812 :-/

SM16703:

WS2128

They seem slightly different... but anyway, I can try to set up something for you, are up to some testing?

I'm super motivated to do some tests

We've done some prelimary attempts at the driver, but there is still one issue holding the progress up. Once done, we will get drivers for that chip and for all similar chips (WS2812b etc) quickly.

Awesome!
Let me know and I'll test it ASAP

Hi guys,
I'm new on this forum. I want to say Hi to you.
I did look at this forum because of the nice Open Beken system to drive several led devices.

My question is, is there any progress on the SM16703 driver on my same 2x 5M led strip from the action?
If you like I can test some things because I have a test setup laying on my desk at my hobby center with this led strip. So I can fast reprogram the BK7231N with the python downloader.
In the past I did some scripting before so with a bit of help I can learn fast.

Best regards, Alcomys

Hi, I have also bought the strip to flash it with OpenBeken. Is there still progress for the driver? Would be great if I can also do some testing when needed. Greats

I will ask on Github or I will look into it myself again soon.
Related discussion:
https://github.com/openshwprojects/OpenBK7231T_App/issues/497
If you know C, you can join and help us.

It is silent for a while now.
Is there any news regarding the drivers for this LED strip?
I wish I would have more knowledge about it but I cannot help that much.
So we are dependent on the people who have the knowledge.

I hope someone picks up the driver issue on this LED strip. That would be nice.

Thanks and best regards, to all the developers.

Any news on that driver project?
It is very silent for a while now.

@p.kaczmarek2
I found a topic about this driver issue.
Maybe you can look at it on GitHub I commented

Best regards.

Thank you, it's nice to see you're still with us! I will try to look into it this month but sadly issue seems problematic to resolve and so far I've seen about 3 users with this LED driver... so priority always goes to devices which has more users (for example we have tens of TuyaMCU questions and requests, etc)

Make it 4 users
I bought a "GoKlug White and Color Ambiance Play Lightbar" and was able to flash it with OpenBK. The button and IR on the controller work but unfortunately the two led bars are connected via three cables: 5V, Ground and Data. So assume I need also a serial driver.
Unfortunately I didn't manage to open a led bar and don't want to destroy it so I couldn't see which driver is inside.

We have SM16703 progress.

Is anyone with SM16703 still here?

We need testers, I don't have this device at hand.

Unfortunately, I still haven't opened the light bars to see which driver chip is inside.
I will have another look to see if I can open it without breaking.

Are you referring to LED driver chip or WiFi module?

You can always make 2MB backup of WiFi module, flash OBK, try the new driver, and if it doesn't work you can restore 2MB backup that you've made.

Device will still function after that.

I mean the LED driver. The chip is already flashed with OpenBK7231T. I can test a new build when it helps.
Unfortunately I made something wrong with the backup so I can't go back anyway.
Here are some blurry photos:



Added after 1 [hour] 2 [minutes]:

I've searched for the newest OpenBK7231T release on GitHub but somehow I only see builds for OpenBK7231N.
Did I miss something?

I wasn't aware about it at first, but it seems that the LED driver contributor has submitted only N version. So, if you have T platform, you need to wait a bit. I will try to port it to T.

>>20667470
Hi, I have the BK7231N and flashed it with 1.17.231.
What can I test?

1. Start driver
startDriver SM16703P

2. Init Driver
SM16703P_Init [[pixelcount]]

3. Set Pixel
SM16703P_SetPixel 1 255 0 0
SM16703P_SetPixel 2 0 255 0
SM16703P_SetPixel 3 0 0 255

4. Start Output (each call will trigger one
SM16703P_Start

Let us know if it works for you

Thanks, I have seen https://github.com/openshwprojects/OpenBK7231T_App/issues/497 but that seems a bit complicated for me. I know how to add some lines to the autoexec.bat, but that is basically it. Just getting into openbeken with two units.

Do I need to upload something first? Is there a mini instruction (link)?

Edit:
At the moment, when it dims, it turns on the color "red" for all three RGB lights.
No CW or WW.

can you post a photo what is the result of these commands?

DM me your IP, I'll give you mine, and you can access it. With an email address, you can watch the results via a simple cam. So you can get crazy on the device.

We could do this but tomorrow or later, today I am working remotely with @DeDaMrAz on TuyaMCU version of SM16703 device. For now, photo should be enough.

I have the same strip as the topic starter but now on: Build on Oct 28 2023 15:32:36 version 1.17.294 Chipset: BK7231N
2 drivers active (SM16703P,SSDP), total 37

still unable to get right colors via the web and remote does nothing.
Only some "blue" is turning on.

Do I need special mapping? can't find model in the list.

Goal is to get basic colors with app and remote, nice would be able to activate a "night rider" effect.

thanks.

Hi i have still this device and happy to see some progress for this. I can try this in some days or test new things you have working on.
Thx and greats

I tried this too, but after flashing my stripe, I got nothing. For me, toggle doesn't work.

I have managed to get the toggle for power toggle 57 PIN6;
warm white toggle 54 Pin 9;
cold white toggle 39 Pin 24;

The things you wrote, I pasted it but nothing happened.