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openshwprojects / OpenBK7231T_App

Open source firmware (Tasmota/Esphome replacement) for BK7231T, BK7231N, BL2028N, T34, XR809, W800/W801, W600/W601, BL602 and LN882H
https://openbekeniot.github.io/webapp/devicesList.html
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OpenBK7231 also working for the WBR3 chip #241

Open Seeelefant opened 2 years ago

Seeelefant commented 2 years ago

Dear all, I have a thermostat BOEK TOL47WIFI-EP with a WBR3 chip inside. Is OpenBK7231T also working for this product?

openshwprojects commented 2 years ago

We'll look into that

crossan007 commented 1 year ago

Following.

I have a "Papifeed Smart Pet Feeder" with a WBR3 chip I'd like to run this on.

valeklubomir commented 1 year ago

If device is not listed here: devicesList Then it must be teardown and pin assignment must be measured. BOEK TOL47WIFI-EP will probably use TuyaMCU protocol, so best solution is to sniff some communication. "Papifeed Smart Pet Feeder" would be much simpler. EDIT: WB3S is supported by OpenBK7231T

Seeelefant commented 1 year ago

Dear all, the WBR3 seems to rely on RTL8720CF as described here:

1 Product Overview WBR3 is a low-power embedded WiFi+BT module that Tuya has developed. It consists of a highly integrated RF chip (RTL8720CF), with an embedded WiFi network protocol stack and varied library functions. With the maximum CPU clock rate of 100MHz, WBR3 also contains a low-power KM4 microcontroller unit (MCU), WLAN MAC, a 1T1R WLAN module, 256-KB static random-access memory (SRAM), 2-MB flash memory, and extensive peripherals. WBR3 is an RTOS platform that integrates all function libraries of the WiFi MAC and TCP/IP protocols. You can develop embedded WiFi products as required.

Inside it has a display controller and a small MCU:

image WBR3 Module Datasheet_Tuya Smart_Docs.pdf

Is there a way to sniff the communication to the MCU?

valeklubomir commented 1 year ago

Sorry my mistake I accidentally misread module name WB3S instead WBR3. It would be completely new platform. But still worth to work on.
EDIT: Found OL47WIFI-EP on aliexpress. I put it on my wish list. For moment I have several device to migrate. I'll keep informed.

Seeelefant commented 1 year ago

There is also a version of BOEK TOL47 without WiFi. The place for the WiFi chip is simply left empty-but it seems to me that this place can be reused with some kind of ESP32-Mini or something similar. IMG_4041

valeklubomir commented 1 year ago

Basicly it is correct, multiple modules are suitable as replacement for WBR3. WB3S, WB2L, CB3S, CB3L, XR3 (OpenBK7231) Other: ESP-12, ESP-C3-12 (tasmota, espurna) This is pretty common module format. Unfortunately I have not found source for spare BK7231 modules on net. It would need to recycle modules from different IoT devices, which you buy only for purpose of harvesting components. Also removing and soldering this modules requires advanced skills with electronics.

EDIT: CB3S and more

valeklubomir commented 1 year ago

Found on youtube some video STOP using Tuya! Transplant your ESP8266 Same applicable for BK7231 compatible modules.

Seeelefant commented 1 year ago

It´s working, here in the context of ESPHome/Home Assistant: image

alexreddy78 commented 1 year ago

Wondering, if any positive progress was made to support WBR3?

Regards.

HollyFredD commented 11 months ago

Wondering, if any positive progress was made to support WBR3?

Regards.

Same here, I have a WBR3 controlling a CREATE Ceiling Fan

lutz108 commented 10 months ago

Wondering, if any positive progress was made to support WBR3?

Regards.

This device list contains devices with an WB3R, doesn't that imply functionality? https://openbekeniot.github.io/webapp/devicesList.html

I just bought an Asakuki aroma diffusor which now has a WB3R. I'm quite new to electronic/IoT stuff. I'm confident in soldering and flashing stuff, but it's hard to really to be clear on these edge cases without being deeply into electronics. Probably I'll just use tuya local. In the current state I'd also have to use Windows in a VM for the flashing tool.

BenJamesAndo commented 10 months ago

Do you mean WBR3 chip? There's also a WB3S chip. Depending on which one yours is you may be able to flash it via the pins, or swap it out with an ESP Chip.

lutz108 commented 10 months ago

-__- I misread R instead of S in the list. So yeah, the Asakuki Aroma Diffuser has currently a WBR3 photo_5265239621674064063_y

From reading in to several forums, discussions and projects, there are only two options at the moment. Either to replace the chip or stick with tuya local, right? For now I'd go for the latter and try to get more into all that stuff (This goes slightly of this issue... sorry for that and thanks for your work!)

helgek commented 7 months ago

I just received this humidifier: Airbi Evo Wifi https://www.airbi.cz/en/humidifier-evo-wifi which also has the WBR3 chip.

https://developer.tuya.com/en/docs/iot/wbr3-module-mcu-serial-communication-instructions?id=K9pfgdk62ae6g https://developer.tuya.com/en/docs/iot/wbr3-module-datasheet?id=K9dujs2k5nriy

I've tried to back up the firmware but haven't been successful yet with setting up the serial connection. Has anyone been able to put WBR3 into bootloader mode? So far I've been flashing ESP32 chips where I shortened "EN" and "GND" permanently (already when I powered the UART device on).

helgek commented 7 months ago

All my questions were answered here: https://github.com/libretiny-eu/libretiny/issues/235#issuecomment-2012110191

Unfortunately there is probably no way currently to access the WBR3 flash memory in my case.

tiagovla commented 5 months ago

-__- I misread R instead of S in the list. So yeah, the Asakuki Aroma Diffuser has currently a WBR3

I have this product and the Bluetooth/Wifi stopped working.

Could you guys confirm that if It's powered with 3.3V and the EN pin is at 3.3V, I should be getting at least the bluetooth BLE signal?