What voltage should I feed the BK7231T/BK7231N when flashing?
Always use 3.3 V. Feeding 5 V can destroy the SoC in under one second [Elektroda, p.kaczmarek2, post #20599050]
[BK7231T WB3S] Nedis SmartLife LED Strip | Wi-Fi | RGBCW - WIFILS50CRGBW
TL;DR
- Nedis SmartLife LED Strip WIFILS50CRGBW (EAN 5412810303106) gets a teardown and pinout for a Wi‑Fi RGBCW controller.
- The controller uses a BK7231T WB3S chip, and the housing opens by prying from the cable side with three small clips on each side.
- OpenBK7231_app and the Tuya WB3S datasheet guided flashing and pin mapping, with P6, P8, P9, P14, P24, and P26 assigned to PWM and Btn_n.
- Check board orientation carefully by confirming GND and VCC before flashing.
Generated by the language model.
Hi, here's a quick teardown and a pinout for Nedis WIFILS50CRGBW led strips.
It uses a BK7231T WB3S chip.
Product official name: Nedis SmartLife LED Strip | Wi-Fi | Cool White / RGB / Warm White
Product code: WIFILS50CRGBW
Product EAN: 5412810303106
Product Page: Link
Teardown
Just pry it open, starting from where the cables are going to the controller, there are 3 small clips on either side of the housing.
I used a small screwdriver to get it open but brute force would probably do it as well.
I'd start on the power connector side since there is more slack on the cable on that side.
Flashing
I used OpenBK7231_app for the flasing and Tuya datasheet as a pinout reference
PS. Please make sure that your board is the correct way, the easiest way is to check which pin is the gnd and which one VCC.
OpenBK7231_app: Link
Tuya datasheet for WB3S: Link
Pinout
It uses a BK7231T WB3S chip.
Product official name: Nedis SmartLife LED Strip | Wi-Fi | Cool White / RGB / Warm White
Product code: WIFILS50CRGBW
Product EAN: 5412810303106
Product Page: Link
Teardown
Just pry it open, starting from where the cables are going to the controller, there are 3 small clips on either side of the housing.
I used a small screwdriver to get it open but brute force would probably do it as well.
I'd start on the power connector side since there is more slack on the cable on that side.
Flashing
I used OpenBK7231_app for the flasing and Tuya datasheet as a pinout reference
PS. Please make sure that your board is the correct way, the easiest way is to check which pin is the gnd and which one VCC.
OpenBK7231_app: Link
Tuya datasheet for WB3S: Link
Pinout
| PIN | Assignment | P6 | PWM 5 | P8 | PWM 4 | P9 | PWM 1 | P14 | Btn_n | P24 | PWM 2 | P26 | PWM 3 |
Comments
Hello, which pin is the button? Button can be easily configured with one of predefined roles or scripted. [Read more]
Tested it before and for some reason it didn't work. Got it working now and updated the pinout table :) [Read more]
Hey, why Btn_n? I think Btn should work as well. Do you need the button only for power, or also would like to script it, so, for example, one click toggles power, double click toggles color, long hold... [Read more]
Just BTN started giving the following logs instantly: Info:GEN:14 Button_OnLongPressHold It seems that I have to invert the button somehow but TBH I have no idea how to do it :D Technically the button... [Read more]
So maybe you are right and you indeed need Btn_n. Still, it's strange, It's the fist time I see it. [Read more]
Have the same device, but it seems to be a new PCB with BK7231N chip on main PCB. Pin Assignment P6 PWM 3 P7 PWM 4 P8 PWM 1 P9 Btn_n P24 PWM 2 P26 PWM... [Read more]
Can you copy config from Web Application in JSON format? Thanks! [Read more]
https://github.com/OpenBekenIOT/webapp/pull/48 [Read more]
Thank you, it's nice to see someone able to create a pull request. Btw, are you sure about that Button_n? [Read more]
Yes, if I use "Button" instead of "Button_n" log is flooded with: Info:GEN:9 Button_OnLongPressHold (also there is some "Button/Btn" confusion. The "Export Current Template" section in webapp has... [Read more]
hello, I have a card that allows me to connect the BK7231N to my computer but I can choose 3.3 V and 5 V and I don't know which is the right one and as I'm a beginner I'm afraid to make error can you help... [Read more]
Hello @ewengauvin , you have to use 3.3V for BK7231, just like we do for ESP8266. Please consult our flasher guide before flashing: https://github.com/openshwprojects/BK7231GUIFlashTool It would be... [Read more]