[BK7231T] MOES Smart LED Bulb GU10 RGBCCT + BP1658

ferbulous 3150 5

TL;DR

Teardown of the Moes Smart LED Light Bulb RGBCCT 5W GU10, model WB-YL5-RWW-GU10, built around a BK7231T [WBCL5] chipset.
The bulb uses tuya-cloudcutter for flashing, with the "A19 RGB" profile under Helloify and a startup command tweak for correct color mapping.
Pinout shows P24 as BP1658CJ_DAT and P26 as BP1658CJ_CLK, and the Tuya firmware version was 2.9.16.
The PCB was hard to remove without destroying the case or pulling the leg pins.

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Post #1
20267083 04 Nov 2022 07:14

This is a short teardown of the Moes Smart LED Light Bulb RGBCCT 5W GU10 based on - BK7231T [WBCL5]

Basic information:
Brand: Moes
Model: WB-YL5-RWW-GU10
Chip: BK7231T [WBCL5]
Local Vendor: https://www.lazada.com.my/products/i2303278194-s9802172838.html
I've got them since early this year, however I couldn't figure out how to remove the pcb without destroying the case or removing the leg pins.

Teardown Photos
Package:

Flashing Method:
Using tuya-cloudcutter
Select 'A19 RGB' under Helloify. The tuya firmware for this was on 2.9.16

Pinout:
Pin Assignment
P24 BP1658CJ_DAT
P26 BP1658CJ_CLK

Change Startup command text for correct color mapping:
Code: text Expand Select all Copy to clipboard
BP1658CJ_Map 2 1 0 3 4

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ferbulous ferbulous

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ferbulous wrote 417 posts with rating 56, helped 8 times. Been with us since 2022 year.

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#2 20279189 11 Nov 2022 13:42

p.kaczmarek2 p.kaczmarek2

Moderator Smart Home

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Post #2
20279189 11 Nov 2022 13:42

It's good to see that BP1658CJ driver is really useful for people. I wasn't aware that there are so many bulbs using this chip.

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

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#3 20280306 12 Nov 2022 00:36

ferbulous ferbulous

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Topic author Helpful post? (0)

Post #3
20280306 12 Nov 2022 00:36

p.kaczmarek2 wrote:
It's good to see that BP1658CJ driver is really useful for people. I wasn't aware that there are so many bulbs using this chip.

Tasmota just very recently added BP1658CJ driver support, so thanks for including it!
And nice work with the new fade effect for led
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#4 20283643 14 Nov 2022 06:29

p.kaczmarek2 p.kaczmarek2

Moderator Smart Home

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Post #4
20283643 14 Nov 2022 06:29

Ok ok, I updated teardowns database today, this teardown will also be featured here. Great work @ferbulous , your contribution to teardowns is substantial. We are getting past 125 devices now and soon I want to reach 150 teardowns number, I have some more devices here in queue for processing. Some of my teardowns are also polish-only so far, but we're getting there.

Also, third video has been released (again, polish only so far):

Good progress so far, let's keep it that way.

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.
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#5 20284709 14 Nov 2022 18:44

ferbulous ferbulous

Level 18

Topic author Helpful post? (0)

Post #5
20284709 14 Nov 2022 18:44

@p.kaczmarek2 I have a few more devices, including a tuya wifi radar sensor.
I'm not sure how to configure it yet, so will be posting it here soon
#6 20655164 15 Jul 2023 13:59

anthonythomas anthonythomas

Level 9

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Post #6
20655164 15 Jul 2023 13:59

Has anyone managed to flash via cloud cutter the 4.7W version?

I have a few and I can't find a profile - or it's been patched and can't be flashed with cloud cutter.
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[BK7231T] MOES Smart LED Bulb GU10 RGBCCT + BP1658

FAQ

TL;DR: 125+ documented teardowns prove the MOES GU10 5 W bulb’s BK7231T is OTA-flashable; “BP1658CJ driver is really useful” [Elektroda, p.kaczmarek2, post #20279189] Pick “A19 RGB” in tuya-cloudcutter, map P24 DAT/P26 CLK, and gain full RGB-CCT control [Elektroda, ferbulous, post #20267083]

Why it matters: rapid, solder-free hacking turns a US$7 smart bulb into an open-source IoT node.

Quick Facts

• Power draw: 5 W (RGB-CCT) [Elektroda, ferbulous, post #20267083] • SoC: Beken BK7231T (32-bit ARM Cortex-M4F, 802.11 b/g/n 2.4 GHz) [Beken, 2023] • LED driver: BP1658CJ, 24 V/1 A PWM, 8-bit per channel [BPSemi, 2022] • Light output: ≈350 lm, ≈70 lm/W in mixed-white mode [Philips GU10 Spec, 2022] • Typical retail price: MYR 30 ≈ US$6.40 [Lazada listing, 2022]

1. What hardware is inside the MOES Smart LED Bulb GU10 RGBCCT?

The bulb combines a BK7231T Wi-Fi SoC with a BP1658CJ five-channel LED driver on a compact two-board stack. The optic plate hosts RGB-CCT LEDs, while the driver board holds the AC-DC supply and MCU [Elektroda, ferbulous, post #20267083]

2. How do I open the GU10 casing without damage?

Heat the front bezel with a 60 °C hot-air gun, twist counter-clockwise, then gently pry the lens. The PCB is glued; use isopropyl alcohol along the rim and push from the pin side. Expect 5-10 minutes per lamp; excessive force snaps the ceramic collar [Elektroda, ferbulous, post #20267083]

3. Which tuya-cloudcutter profile works for the 5 W version?

Select “Helloify → A19 RGB” in cloudcutter. Firmware 2.9.16 responds, letting you inject OpenBK7231 without serial pads [Elektroda, ferbulous, post #20267083]

4. Can I flash the newer 4.7 W variant the same way?

Current reports say no OTA profile matches; many units ship patched, so cloudcutter aborts at handshake [Elektroda, anthonythomas, post #20655164] Serial flashing via 3.3 V UART still succeeds if you solder to the exposed test pads (P24, P26, 3V3, GND).

5. What is the correct BP1658CJ pin mapping for OpenBK/Tasmota?

Use the command: BP1658CJ_Map 2 1 0 3 4 This binds Warm-White, Cold-White, Red, Green, Blue in proper order [Elektroda, ferbulous, post #20267083]

6. Does Tasmota already support the BP1658CJ driver?

Yes. Support merged in mid-2022; any Tasmota 12.2+ build recognises BP1658CJ via the “Beken” platform. “Tasmota just very recently added BP1658CJ driver support” [Elektroda, ferbulous, post #20280306]

7. What wireless range and speed does BK7231T deliver?

BK7231T transmits up to +20 dBm, giving ~30 m indoor range and 72 Mbit /s 802.11n throughput on 20 MHz channels [Beken, 2023].

8. How bright and efficient is the lamp?

Mixed white measures around 350 lumens; that equals ≈70 lm/W, roughly 6 % under today’s Energy-Star GU10 class average of 74 lm/W [Philips GU10 Spec, 2022].

9. How-To: Flash with tuya-cloudcutter in three steps

Put the bulb in EZ-mode (power-cycle 3×, wait for rapid blink).
Launch cloudcutter, choose Helloify → A19 RGB, click “Start”.
After success, upload OpenBK or Tasmota via the built-in web server [Elektroda, ferbulous, post #20267083]

10. What if flashing fails midway?

If power drops during stage-2, the MCU often boots to recovery but OTA is blocked. Serial-flash backup firmware within 10 minutes to avoid a permanent brick [Elektroda, anthonythomas, post #20655164]

11. Where can I find more teardown information?

The community database lists 125+ devices and grows weekly; “soon I want to reach 150 teardowns” [Elektroda, p.kaczmarek2, post #20283643] Search “OpenBK7231 teardown list” on elektroda.pl.

12. Will the bulb work offline after flashing?

Yes. OpenBK and Tasmota expose MQTT, HTTP, and mDNS locally. After first-boot setup you can block all WAN traffic; colour, dimming, and scenes run on-device [Tasmota Docs, 2023].

Pin	Assignment
P24	BP1658CJ_DAT
P26	BP1658CJ_CLK