1. What microcontroller does the bulb use?
The driver board carries a BK7231T on a CB2L module, combining 32-bit MCU and 2.4 GHz Wi-Fi[Elektroda, Zain00, post #20446275]
[BK7231 - CB2L] Moes LED Light Bulb 14W RGB C+W E27
TL;DR
- Moes LED Light Bulb 14W RGB C+W E27 uses a BK7231 CB2L Wi‑Fi controller and targets OpenBeken flashing.
- Lightleak project enabled a full chip dump without opening the epoxy-filled bulb, and the .bin was added to tuya-cloudcutter for firmware 1.3.1.
- The bulb cost $9.49 with free shipping and is described as heavy and very bright.
- The bulb is advertised as CW+WW+RGB, but it actually uses WW+RGB diodes and emulates CW, so Flag 24 must be enabled.
Generated by the language model.
I received a new bulb from Moes, it costs $9.49 with free shipping
https://www.aliexpress.com/item/1005003473033205.html
This is a heavy bulb and it's indeed very bright
The bulb uses BK7231 - CB2L but unfortunately Moes filled the bulb with epoxy and I couldn’t disassemble it without causing permanent damage.
But thanks to Lightleak project I was able to get full dump of the chip without the need to open it further. I uploaded the .bin file to tuya-cloudcutter and it can be found under the profile with firmware version 1.3.1
Here are some pictures of the bulb.
As you can see the bulb was advertised as CW+WW+RGB but it only has WW+RGB diodes and it emulate the CW. That’s why Flag 24 must be enabled.
After flashing Openbeken use the following configuration
P6 - PWM 0
P8 - PWM 4
P24 - PWM 2
P26 - PWM 1
Also don't forget to enable Flag 24
https://www.aliexpress.com/item/1005003473033205.html
This is a heavy bulb and it's indeed very bright
The bulb uses BK7231 - CB2L but unfortunately Moes filled the bulb with epoxy and I couldn’t disassemble it without causing permanent damage.
But thanks to Lightleak project I was able to get full dump of the chip without the need to open it further. I uploaded the .bin file to tuya-cloudcutter and it can be found under the profile with firmware version 1.3.1
Here are some pictures of the bulb.
As you can see the bulb was advertised as CW+WW+RGB but it only has WW+RGB diodes and it emulate the CW. That’s why Flag 24 must be enabled.
After flashing Openbeken use the following configuration
P6 - PWM 0
P8 - PWM 4
P24 - PWM 2
P26 - PWM 1
Also don't forget to enable Flag 24
Comments
Thank you, very useful review. I can also see that you have the same power metering util that I have. I have reviewed it on the polish side of Elektroda: https://www.elektroda.pl/rtvforum/topic3655635.html Hmmm... [Read more]
This meter is surprisingly accurate given its price I mostly use this bulb at 2700k, but I have noticed a flickering when using the emulation. https://youtube.com/shorts/6Ef-RvJqDAg https://youtu.be/ZUlcGBesySo Now,... [Read more]
Are you able to compile the OpenBL602 yourself? I can be done online on github. Maybe you just need a different PWM frequency. Hmm. [Read more]
Are you refering to this bulb ? this one is Beken chip I don't use white emulation on this one but I you want to do some testing I can help. [Read more]
Ah, sorry, it's BK, I was confused. Ok, so maybe try this option: https://obrazki.elektroda.pl/5725953600_1676906949_thumb.jpg I am also considering adding frequency customization for PWM. [Read more]
Flag 11 - ON, still flickering [Read more]
If you have time to play around, give me few hours or so and I may prepare a build with an option to configure PWM frequency from console command. Right now i am working on Web App and configuration... [Read more]