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

etnguyen03 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

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etnguyen03 wrote 4 posts with rating 4 . Been with us since 2022 year.

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p.kaczmarek2 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? https://obrazki.elektroda.pl/1532597100_1671101321_thumb.jpg By the way, have you considered... [Read more]

etnguyen03 16 Dec 2022 02:21

It looks like it. 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 :) [Read more]

shazambroaza 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. [Read more]

p.kaczmarek2 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: [Read more]