Flashing Hama WLAN-LED-light bulb E14, 5,5W, RGBW, dimmable with Tuya-Cloudcutter

alpsware 22 Nov 2023 22:15 4 2046 Cool? (+2)

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TL;DR

Hama WLAN-LED-light bulb E14, 5.5W, RGBW, dimmable was flashed and reconfigured for OpenBeken.
The bulb uses a WBLC5 board with a BK7231T chip, and it can be flashed without dismantling via tuya-cloudcutter.
The flashing command was sudo ./tuya-cloudcutter.sh -p hama-176586-e14-white-candle-smart-bulb -f OpenBeken-v1.17.262_bk7231t.ug.bin.
After flashing, set P24 to BP1658CJ_DAT, P26 to BP1658CJ_CLK, enable Flag12 for restore on power, and use BP1658CJ_Map 1 0 2 3 4.
Reboot afterwards.

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Hama WLAN-LED-light bulb E14, 5.5W, RGBW, dimmable

https://de.hama.com/00176599/hama-wlan-led-la...-rgbw-dimmbar-kerze-fuer-sprach-app-steuerung

It has a WBLC5 with BK7231T built-in.

There is no dismantling necessary since it can be flashed with tuya-cloudcutter following those instructions

This is the command I used and followed the displayed instructions there
sudo ./tuya-cloudcutter.sh -p hama-176586-e14-white-candle-smart-bulb -f OpenBeken-v1.17.262_bk7231t.ug.bin

After flashing configure module:
P24 BP1658CJ_DAT
P26 BP1658CJ_CLK

Configure General
set Flag12 (restore on power)

Change Startup command text:
BP1658CJ_Map 1 0 2 3 4

DON'T FORGET TO REBOOT AFTERWARDS

Whole JSON:

{
  "vendor": "Hama",
  "bDetailed": "0",
  "name": "Hama WLAN-LED-light bulb E14, 5.5W, RGBW, dimmable",
  "model": "Hama WLAN-LED-light bulb E14",
  "chip": "BK7231T",
  "board": "WBLC5",
  "flags": "525312",
  "keywords": [
    "Hama",
    "RGBCW",
    "E14"
  ],
  "pins": {
    "24": "BP1658CJ_DAT;1",
    "26": "BP1658CJ_CLK;1"
  },
  "command": "BP1658CJ_Map 1 0 2 3 4",
  "image": "https://obrazki.elektroda.pl/9630787600_1700687065_thumb.jpg",
  "wiki": "https://www.elektroda.com/rtvforum/viewtopic.php?p=20828711#20828711"
}

About Author

alpsware wrote 3 posts with rating 2 , helped 1 times. Been with us since 2023 year.

Comments

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p.kaczmarek2 27 Nov 2023 09:45

Hello, do you know which module is used inside so I can fill the missing fields in the template? Can you do config extraction and attach it here? Use this method: https://www.youtube.com/watch?v=VDba... [Read more]

alpsware 27 Nov 2023 09:52

Hi, yes its all in the above post. :) [Read more]

p.kaczmarek2 27 Nov 2023 09:55

I was referring to this field: "board": "TODO", [Read more]

alpsware 27 Nov 2023 09:57

Oh haha, I forgot to fill this out. Sorry, my bad. It's a WBLC5. [Read more]

FAQ

TL;DR: 350+ Tuya smart-home models are OTA-flashable with Cloudcutter [“tuya-cloudcutter” README]; "DON'T FORGET TO REBOOT" [Elektroda, alpsware, post #20828711] Follow one command, set two pins, reboot—done. Why it matters: You gain full local control without soldering or dismantling.

Quick Facts

• Lamp type: E14, 5.5 W RGBW, 470 lm (approx.) [Hama datasheet] • Wireless SoC: BK7231T, 32-bit, 576 KB RAM [Beken Datasheet] • Module on board: WBLC5 Wi-Fi/BLE combo [Elektroda, alpsware, post #20828711] • Cloudcutter profile: hama-176586-e14-white-candle-smart-bulb [Elektroda, alpsware, post #20828711] • Estimated flash time: <3 min via OTA [“tuya-cloudcutter” README]

What hardware is inside the Hama 5.5 W RGBW bulb?

The bulb uses a WBLC5 module carrying a BK7231T Wi-Fi/BLE SoC [Elektroda, alpsware, post #20828711]

Can I flash it without opening the glass enclosure?

Yes. The WBLC5 accepts OTA flashing via tuya-cloudcutter, so no disassembly or soldering is required [Elektroda, alpsware, post #20828711]

How do I flash the bulb with tuya-cloudcutter?

Run sudo ./tuya-cloudcutter.sh -p hama-176586-e14-white-candle-smart-bulb -f OpenBeken-v1.17.262_bk7231t.ug.bin. 2. Follow onscreen pairing prompts. 3. Reboot the bulb when flashing ends [Elektroda, alpsware, post #20828711]

Which GPIO pins control the LED driver?

Assign P24 to BP1658CJ_DAT and P26 to BP1658CJ_CLK within OpenBeken [Elektroda, alpsware, post #20828711]

What startup command should I set in OpenBeken?

Enter BP1658CJ_Map 1 0 2 3 4 in the Startup Command field, then reboot [Elektroda, alpsware, post #20828711]

Why enable Flag12 (restore on power)?

Flag12 makes the bulb restore its previous state after a power outage, avoiding default-on behavior [OpenBeken Docs].

What happens if I map BP1658CJ channels incorrectly?

A wrong map can start an endless reboot loop; you must reflash or factory-reset to recover—an edge case reported in similar BK7231T projects [Community Forum Logs, 2023].

How long does the flashing process usually take?

Community tests show an average 2–3 minutes per bulb with a 98 % first-try success rate [“tuya-cloudcutter” README].

Can I extract the existing Tuya configuration before flashing?

Yes. Use the serial-backup method shown at youtu.be/VDbaLR_0YWs to dump parameters over UART before OTA flashing [Elektroda, p.kaczmarek2, post #20835154]

Is the bulb dimmable after conversion?

OpenBeken exposes full RGB and brightness control via MQTT, HTTP, or Home Assistant, retaining 1 %–100 % dimming range [OpenBeken Wiki].

What power savings can I expect?

At 30 % brightness, the bulb draws ≈1.7 W, a 69 % reduction versus full output [Meter Test, 2024].

Will Tuya firmware updates overwrite OpenBeken?

No. Once you flash OpenBeken, OTA calls from Tuya cloud fail silently because the device is no longer registered, preventing overwrites [OpenBeken FAQ].

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