Added REV3 of the nx-4653 #2
Conversation
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So I have removed the MCU board from the main component. On the back side of the mcu board is a ic located. No STM there. On the main board was a Optocoupler El357 as the biggest component. So maybe an esp with 7 pins on each side and a beken mcu on top of it. I do not know what the beken is there for. Maybe you can help me on that matter with your expertise or point me to the chat where you found information on the stm on your revision of the nx. |
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I have trashed the soldering :( |
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Sorry to hear that you crashed the dimmer. After some research I found that in your revision of the NX-4653 Luminea has replaced the ESP8266 MCU with a Beken BK7231n MCU. Maybe a costdown or ratio project of Luminea. What I found is that both MCU PCBs shall be pin-compatible, but I can not check this and have also no experience with the Beken BK7231n MCU. Maybe it is an option for you to replace this PCB with an original ESP8266 PCB. |
Hello Markus,
is there even an esp8266 onboard? It could be a STM MCU. The serial number is 1001172620001f , the product number is coqhnanv9q9hu. Some STM MCUs have a cbu in their model number.
There is a beken mcu on top of the (I hope) esp8266. It is a bk7231n serial: fu207hfq
Can you somehow confirm that it is a esp?