[BK7231T] Lenovo Smart LED Lightstrip SE-243SC RGBWW

etnguyen03 2229 4

Reply Cool? Ranking DIY | New topic

Notify about new articles

Helpful post? (+1)

Post #1
20335613 15 Dec 2022 05:06

Hello, here I present a teardown of the Lenovo Smart LED Lightstrip, this is the 2 meter version, model number SE-243SC. It is currently $8 on Lenovo's website.

This uses a BK7231T, specifically a WB3S.

Opening the controller: the housing is constructed kind of badly which allows you to pry the housing apart along the seam running down the middle. Insert a metal pry tool where either cable enters the housing and you can easily pry it apart.

The board is held in by these two clips, you can pull both sides of the plastic apart to remove the board.

The insides:

Installing OpenBeken:

Solder wires to the WB3S, connect to a UART and then follow the flashing instructions. Hold a wire connecting CEN to GND to get the chip into flashing mode.

Pin config:

* P6: PWM, channel 4
* P8: PWM, channel 5
* P9: PWM, channel 1
* P14: Button
* P24: PWM, channel 2
* P26: PWM, channel 3

Cool? Ranking DIY
About Author
etnguyen03 etnguyen03

Level 2
Offline

Joined: 20 Nov 2022

Posts: 4

Posts rating: 4

Points: 167
etnguyen03 wrote 4 posts with rating 4. Been with us since 2022 year.
ADVERTISEMENT
#2 20335928 15 Dec 2022 11:53

p.kaczmarek2 p.kaczmarek2

Moderator Smart Home

Helpful post? (0)

Post #2
20335928 15 Dec 2022 11:53

That's a very nice strip controller, from what I can see, it's using '2300' MOSFETs for channel control?

By the way, have you considered using some more advanced script for a button?
For example:
- click - turn on/off
- hold - adjust dimmer
- double click - switch color

And also... if you are up to some DIY, remember that with OpenBeken you can easily add IR to any LED strip:

I am creating multiplatform open source firmware (Tasmota replacement), right now supporting BK7231T, BK7231N, XR809, BL602, W800, W600, LN882H and soon supporting RTL and W701:
https://github.com/openshwprojects/OpenBK7231T
If you like my work, support me at: https://paypal.me/openshwprojects

Helpful post? Buy me a coffee.
ADVERTISEMENT
#3 20337160 16 Dec 2022 02:21

etnguyen03 etnguyen03

Level 2

Topic author Helpful post? (0)

Post #3
20337160 16 Dec 2022 02:21

p.kaczmarek2 wrote:
it's using '2300' MOSFETs for channel control?

It looks like it.

p.kaczmarek2 wrote:
By the way, have you considered using some more advanced script for a button?

p.kaczmarek2 wrote:
And also... if you are up to some DIY, remember that with OpenBeken you can easily add IR to any LED strip:

I'm aware but currently I'm using these with Home Assistant, so I don't really have a use for the buttons because I prefer my motion sensors
ADVERTISEMENT
#4 20408935 28 Jan 2023 03:38

shazambroaza shazambroaza

Level 1

Helpful post? (0)

Post #4
20408935 28 Jan 2023 03:38

Hi, thank you for the post. I can confirm the 5m model SE-2431C works with exact same pin config.
#5 20408988 28 Jan 2023 07:52

p.kaczmarek2 p.kaczmarek2

Moderator Smart Home

Helpful post? (0)

Post #5
20408988 28 Jan 2023 07:52

If you have the same model, you can also tell us where it's been bought. Thanks!
LED strip programming tutorial:

I am creating multiplatform open source firmware (Tasmota replacement), right now supporting BK7231T, BK7231N, XR809, BL602, W800, W600, LN882H and soon supporting RTL and W701:
https://github.com/openshwprojects/OpenBK7231T
If you like my work, support me at: https://paypal.me/openshwprojects

Helpful post? Buy me a coffee.
Create an account, log in and become active in a forum and ads will not appear. You will receive points by participating in discussions.
Join this discussion.

Install the application

Didn't find an answer? Ask Artificial Intelligence

*I agree to send the question to OpenAI, Anthropic PBC, Perplexity AI, Inc., Kagi Inc., Google LLC - owners of language models in order to prepare the best response. The companies may monitor and log information entered into the form.

*I agree to publicly display my question and answer. The question and answer will be publicly available to everyone. The process may take a few minutes. Upon completion, you will be redirected to the page with the answer.

Wait...(2min)