[BK7231T] My HTTP server, configurator, MQTT support from Home Assistant

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#541 20003014 02 May 2022 02:16

p.kaczmarek2 p.kaczmarek2

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Post #541

20003014 02 May 2022 02:16

@kuba2k2 I think there is mbedtls for that

@leecher1337 well, can you post photo from inside? Usually you just see where each track of PCB goes and that's it. You can also try using TYWE3S pinouts, because TYWE3S has footprint compatible with WB3S:

TYWE3S (ESP12F):

WB3S pin definitions:

Pin No.	Symbol	I/O type	Function
1	CEN	I	Low-level reset, high-level active (internally pulled high) Docking IC-CEN
2	ADC3	AI	ADC pin, which is connected to the P23 pin on the internal IC
3	EN	Input	Enabling pin, which is internally pulled up and compatible with other module design
4	P14	I/O	Common GPIO, which is connected to the P14 pin on the internal IC
5	PWM5	I/O	GPIOP_26, which is connected to the P26 pin on the internal IC
6	PWM4	I/O	GPIOP_24, common GPIO, which is connected to the P24 pin on the internal IC
7	PWM0	I/O	GPIOP_6, which is connected to the P6 pin on the internal IC
8	VCC	P	Power supply pin (3.3 V)
9	GND	P	Power supply reference ground pin
10	PWM1	I/O	GPIOP_7, which is connected to the P7 pin on the internal IC
11	TXD2	I/O	UART2_TXD, which is used to display the internal information of the module and connected to the P0 on the internal IC. Unavailable to customers.
12	RXD2	I/O	UART2_RXD, which is used to display the internal information of the module and connected to the P1 on the internal IC. Unavailable to customers.
13	PWM3	I/O	GPIOP_9, common GPIO, which is connected to the P9 pin on the internal IC
14	PWM2	I/O	GPIOP_8, which is connected to the P8 pin on the internal IC
15	RXD1	I/O	UART1_RXD, which is used as a user-side serial interface pin and is connected to the P10 pin on the internal IC
16	TXD1	I/O	UART1_TXD, which is used as a user-side serial interface pin and is connected to the P11 pin on the internal IC

In the configurator, the indices are the referring to "P26", "P10", etc, nomenclature

I am creating multiplatform open source firmware (Tasmota replacement), right now supporting BK7231T, BK7231N, XR809, BL602, W800, W600, LN882H and soon supporting RTL and W701:
https://github.com/openshwprojects/OpenBK7231T
If you like my work, support me at: https://paypal.me/openshwprojects

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#542 20003136 02 May 2022 09:24

leecher1337 leecher1337

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Post #542
20003136 02 May 2022 09:24

Here is an image of the top view of the switch. I don't know if I can unscrew the PCB from the bottom of the switch without destroying it, so I'd first like to ask if the photo of the topside of the PCB may be enough to get the necessary information (maybe it's the same profile as a switch you possibly already integrated):

So I have connections to P8 presumably for the switches, P26 (LEDs..?), and EN (possibly irrelevant, as internal pull-up)?
#543 20003149 02 May 2022 09:39

p.kaczmarek2 p.kaczmarek2

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Post #543
20003149 02 May 2022 09:39

Was there ESP12F (TYWE3S) before? If so, then it's easy, just map the pins.

still, here is a hint for you:

Also... quick question - do you know that you can just try out each configuration? You won't break anything, I think.

Just set P26 or something to Relay (or LED, as you wish), set it for channel 0, and toggle it from the www panel. Does the LED blinks or relay clicks? If so, that's the pin you're looking for.
You can set multiple pins and test them at once. For example, set P1 to channel 0 LED, P2 to channel 1 LED, P3 to channel 2 LED, etc and on main site you get multiple buttons - each for each channel. Note down which one works (which pin).
You can do the same with button. Have already a working LED or relay with channel 0. Set cetain pin to be a button with channel 0. Does clicking the button irl toggles the LED? IF so, that's the button pin.

NOTE: Relays will not be working if you power module from your 3.3V supply. This is because relays require 5V rail or 12V (depending on device). Do all testing with module DISCONNECTED from your UART converter and your power supply, and with already connected to mains. NEVER connect module to both mains and your wires - it's very dangerous.
NOTE2: There is a chance that you disable debug log UART output on the module pins if you set the role of UART TX to anything (this overrides logging and you can use debug log UART TX pin as relay control etc)

I am creating multiplatform open source firmware (Tasmota replacement), right now supporting BK7231T, BK7231N, XR809, BL602, W800, W600, LN882H and soon supporting RTL and W701:
https://github.com/openshwprojects/OpenBK7231T
If you like my work, support me at: https://paypal.me/openshwprojects

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#544 20003276 02 May 2022 11:39

leecher1337 leecher1337

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Post #544
20003276 02 May 2022 11:39

Hi,

Thanks for you help, I now got the following mapping:

6 - Rel - 1
8 - Btn - 2
9 - Rel - 2
10 - Btn - 1
11 - LED - 2
26 - LED - 1

Now how to find WiFi Led?
#545 20003292 02 May 2022 11:55

p.kaczmarek2 p.kaczmarek2

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Post #545
20003292 02 May 2022 11:55

The same method as before, but the real question is... is there a WiFi LED in this product?

Is there any LED on the board that you are not yet able to control? Maybe use multimeter to find out where is it connected (try probing also not on the led itself, but on the LED resistor, you might find that one by following PCB tracks).

Not all products seems to have WiFi LED.

PS: XR809/XR3 flashing with OpenBeken port guide released - so far in Polish:
https://www.elektroda.pl/rtvforum/topic3890640.html
Translation pending.

I am creating multiplatform open source firmware (Tasmota replacement), right now supporting BK7231T, BK7231N, XR809, BL602, W800, W600, LN882H and soon supporting RTL and W701:
https://github.com/openshwprojects/OpenBK7231T
If you like my work, support me at: https://paypal.me/openshwprojects

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#546 20003365 02 May 2022 13:00

leecher1337 leecher1337

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Post #546
20003365 02 May 2022 13:00

The left LED can flash orange or blue, there is LED4 and LED6 on the PCB.. I didn't manage to find it yet, tried different configurations, will try to find corresponding resistor. But no idea if I can do anything useful with the orange LED besides maybe showing WIFI connection status anyway...
#547 20003371 02 May 2022 13:04

p.kaczmarek2 p.kaczmarek2

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Post #547
20003371 02 May 2022 13:04

WiFi LED is very useful because it will blink fast if you have no WiFi connection in client mode and this will allow to tell you what's going on with the device that is not responding.
Device not responding to network + fast WiFi LED blink = no wifi connection
Device not responding to network + no WiFi LED blink = idk, device crashed?
Still, it's just in case, because right now I am using OpenBeken devices in my room and I find them stable.

I am creating multiplatform open source firmware (Tasmota replacement), right now supporting BK7231T, BK7231N, XR809, BL602, W800, W600, LN882H and soon supporting RTL and W701:
https://github.com/openshwprojects/OpenBK7231T
If you like my work, support me at: https://paypal.me/openshwprojects

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#548 20004062 02 May 2022 23:24

leecher1337 leecher1337

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Post #548
20004062 02 May 2022 23:24

I didn't manage to find it, unfortunately. Neither by searching for the corresponding resistor, nor by trying out all available pins that were left.
Judging from the Tasmota Templates by converting the GPIO definitions, the WiFi Status LED must be RXD2.
Documentation above states:
"UART2_RXD, which is used to display the internal information of the module and connected to the P1 on the internal IC. Unavailable to customers."
So it must be P1, but from what I can see, it's inverted, I haven't tried it inverted.
Well, it's not that important anyway, at least the normal mapping works as intended.
Should I create a pull request with device configuration or is it enough that you have the mapping in this thread so that you can add it, if you want?
#549 20004219 03 May 2022 08:19

p.kaczmarek2 p.kaczmarek2

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Post #549
20004219 03 May 2022 08:19

Please create a pull request.

So why not set P1 role to simple RELAY, assign channel, idk, 5, and try switching it from web panel to see if it blinks? Or Relay_N, if you want inverting.

I am creating multiplatform open source firmware (Tasmota replacement), right now supporting BK7231T, BK7231N, XR809, BL602, W800, W600, LN882H and soon supporting RTL and W701:
https://github.com/openshwprojects/OpenBK7231T
If you like my work, support me at: https://paypal.me/openshwprojects

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#550 20004362 03 May 2022 10:48

leecher1337 leecher1337

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Post #550
20004362 03 May 2022 10:48

Thanks, confirmed, here are the full mappings then:

DS-102 1 Gang Switch
PIN GPIO TYWE3S GPIO WB3S Function Channel
2 23
4 16 14
5 14 26 LED 1
6 12 24
7 13 6 Rel 1
10 15 7
11 2 0
12 0 1 Wifi LED
13 4 9
14 5 8
15 3 10 Btn 1
16 1 11

DS-102 2 Gang Switch
PIN GPIO TYWE3S GPIO WB3S Function Channel
2 23
4 16 14
5 14 26 LED 1
6 12 24
7 13 6 Rel 1
10 15 7
11 2 0
12 0 1 Wifi LED
13 4 9 Rel 2
14 5 8 Btn 2
15 3 10 Btn 1
16 1 11 LED 2

DS-102 3 Gang Switch
PIN GPIO TYWE3S GPIO WB3S Function Channel
2 23
4 16 14 LED 1
5 14 26 LED 2
6 12 24 Btn 1
7 13 6 Rel 1
10 15 7 Rel 3
11 2 0
12 0 1 Wifi LED
13 4 9 Rel 2
14 5 8 Btn 3
15 3 10 Btn 2
16 1 11 LED 3
#551 20004421 03 May 2022 11:37

p.kaczmarek2 p.kaczmarek2

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Post #551
20004421 03 May 2022 11:37

Please create pull request and I will integrate it into the "Quick config".

Also please note, that soon I will add a template system that will work like in Tasmota, so it will be possible to create a short text templates for each device that can be pasted into the config page.

Btw, XR809/XR3 water sensor guide has been released [ENGLISH VERSION]:
https://www.elektroda.com/rtvforum/topic3890640.html

I am creating multiplatform open source firmware (Tasmota replacement), right now supporting BK7231T, BK7231N, XR809, BL602, W800, W600, LN882H and soon supporting RTL and W701:
https://github.com/openshwprojects/OpenBK7231T
If you like my work, support me at: https://paypal.me/openshwprojects

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#552 20007319 05 May 2022 11:10

Dark Man Dark Man

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Post #552
20007319 05 May 2022 11:10

Dark Man wrote:
The bulb is:
The intelligent LSC Smart Connect LED bulb
10 watts | 806 lumens
Art. number 970715.1 v1.1
WB2L chip
https://www.action.com/pl-pl/p/inteligentna-arowka-led-lsc-smart-connect/

I soldered the module back to the bulb and found its configuration:
P7 - PWM - 2
P8 - PWM - 1

It works very nicely, only the minimum PWM setting is missing (or I haven't found it), because for about 15% of the channel brightness, the LEDs do not shine at all.
It may not be a big problem, but still
At that time, it would also be worth including QuickConfig in the configuration and ultimately in Template in the form of Tasmot.

By the way, I also tested OTA - it only worked from the App OTA level, and not from the default config.

The next step is to test the cloudcutter script.
#553 20007342 05 May 2022 11:24

p.kaczmarek2 p.kaczmarek2

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Post #553
20007342 05 May 2022 11:24

I didn't even think about the minimum PWM value, the bar is from 0 to 100% but I can consider adding something like this.

But rather in Home Assistant it can be done in Yaml, so is it really necessary? Do you control the lamp from the OpenBeken panel or by MQTT?

I can add a template, unless you want to do it, you via a pull request - then you will officially contribute to the repo.

What does "from default config no" mean? Although, I think I know. There is a 64 character limit per link and the link from github has more characters. I took it recently, these 64 are definitely not enough, someone from the code contributors saved bytes too much there.

I am creating multiplatform open source firmware (Tasmota replacement), right now supporting BK7231T, BK7231N, XR809, BL602, W800, W600, LN882H and soon supporting RTL and W701:
https://github.com/openshwprojects/OpenBK7231T
If you like my work, support me at: https://paypal.me/openshwprojects

Helpful post? Buy me a coffee.
#554 20007924 05 May 2022 18:54

sharathbk1912 sharathbk1912

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Post #554
20007924 05 May 2022 18:54

Hi looks like now there is support for bl0942 . Will the bl0937 also be supported sooner ?

Also request to add power on restore configuration ? if its already there can anyone help with the setting ?

Thanks and Regards
Sharath B K
#555 20008221 05 May 2022 21:51

Dark Man Dark Man

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Post #555
20008221 05 May 2022 21:51

I have a few more problems.

I have two PWM channels configured as cold white and warm white.
The slider of their brightness works strangely - no matter if from the default menu or App menu or from Home Assistant through MQTT.
For COLD WHITE at my P8:
- The LEDs only light up from setting 6 on the slider
- at the level of 99 the LEDs shine 50% of their brightness, but just move the slider to 100 and they already shine at 100%

For WARM WHITE at my P7:
- The LEDs only light up from setting 21 on the slider
- at the level of 99 the LEDs shine 50% of their brightness, but just move the slider to 100 and they already shine at 100%
- at the initial brightness, i.e. from 0% to about 30%, the LEDs blink, maybe not significantly, but I can see it (I am sensitive to a low refresh rate). in ESP32 you can set the PWM frequency and in Beken?

Another thing is the default generated configuration for Home Assistant provides for the "Optimistic: true" mode, which causes no actual actual state to be visible. I tried to change it to False, but then the lack of the ability to turn on / off (switching does not change the state), although the slider seems to work as in the native OpenBK menu as described above.

Another thing
In YAML in HA I tried to build one light entity that supports cold white and warm white, i.e. an entity with two sliders (brightness and temperature), but it does not work out at all and I do not know how to do it.

As for adding a template as a pull request, I will try to add it myself, come on it for the first time (it must always be the first time )
#556 20008325 05 May 2022 23:10

p.kaczmarek2 p.kaczmarek2

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Post #556
20008325 05 May 2022 23:10

Dark Man wrote:

For COLD WHITE at my P8:
- The LEDs only light up from setting 6 on the slider
- at the level of 99 the LEDs shine 50% of their brightness, but just move the slider to 100 and they already shine at 100%

For WARM WHITE at my P7:
- The LEDs only light up from setting 21 on the slider
- at the level of 99 the LEDs shine 50% of their brightness, but just move the slider to 100 and they already shine at 100%
- at the initial brightness, i.e. from 0% to about 30%, the LEDs blink, maybe not significantly

I have not seen anything like that. In my case, both the bulbs and the LED strip are already shining at a few% and the dimming value goes smoothly.
I bought a bulb from Action for PLN 18, in a few days I will test it and maybe I'll see what you mean ...

Dark Man wrote:

in ESP32 you can set the PWM frequency and in Beken?

It's stiff in my 1kHz code (if I remember correctly), in hal_pins_bk7231.c

Dark Man wrote:

Another thing is the default generated configuration for Home Assistant provides for the "Optimistic: true" mode, which causes no actual actual state to be visible.

It may actually be a bug. How do you turn it on, do you mean via MQTT / get / / set / or via led driver with enable?

Dark Man wrote:

In YAML in HA I tried to build one light entity that supports cold white and warm white, i.e. an entity with two sliders (brightness and temperature), but it does not work out at all and I do not know how to do it.

I haven't had the CW bulb itself, but in my opinion it will work if you set channel 3 for C and channel 4 for W (R, G, B will be skipped by default)
https://www.elektroda.pl/rtvforum/topic3880540.html
Yaml from the topic, but you will remove the commands on RGB ....

I am creating multiplatform open source firmware (Tasmota replacement), right now supporting BK7231T, BK7231N, XR809, BL602, W800, W600, LN882H and soon supporting RTL and W701:
https://github.com/openshwprojects/OpenBK7231T
If you like my work, support me at: https://paypal.me/openshwprojects

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#557 20008412 06 May 2022 02:32

pepesuriano pepesuriano

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Post #557
20008412 06 May 2022 02:32

Hi, I have been unable to contact @btsimonh since it seems that last connection was a while ago.

Does somebody have any guidance on how can I flash a WB2S with SPI? UART has been impossible to me and I cannot find info on how to flash with SPI.

Thanks
#558 20008969 06 May 2022 15:07

p.kaczmarek2 p.kaczmarek2

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Post #558
20008969 06 May 2022 15:07

sharathbk1912 wrote:
Hi looks like now there is support for bl0942 . Will the bl0937 also be supported sooner ?

those two chips have different communication modes, bl0942 is uart and bl0937 is custom protocol which requires interrupts, but i will try to do 937 soon, it has example in tuya sdk

sharathbk1912 wrote:

Also request to add power on restore configuration ? if its already there can anyone help with the setting ?

Do you need it? I can add this for you really soon.

pepesuriano wrote:
UART has been impossible to me and I cannot find info on how to flash with SPI.

did you read @DarkMan1 post? he had issues with CP2102 UART to USB converter but CH340 worked for him, maybe you need second usb to uart converter as well?

I have flashed a lot of bk devices and all of them worked so far.

Anyway, next device for testing arrived - donation from Jennifer (@echojjj) - thank you, I will make sure it's supported and working well. I will also release a teardown article and programming guide for it soon. And it's already flashed! Support will be also added to tuya-cloudcutter as well, so you can flash this device without connecting wires (by hacking Tuya OTA)!
Spoiler:

Do you also want to send me a device for testing as well? I try to add as much features as possible, but it's hard to buy all devices by myself, so considering supporting a project by sending me a device (send me a PM here) or doing a donation: https://www.paypal.com/paypalme/openshwprojects Thanks! Every 1$ counts.

I am creating multiplatform open source firmware (Tasmota replacement), right now supporting BK7231T, BK7231N, XR809, BL602, W800, W600, LN882H and soon supporting RTL and W701:
https://github.com/openshwprojects/OpenBK7231T
If you like my work, support me at: https://paypal.me/openshwprojects

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#559 20009346 06 May 2022 20:05

marioalmeida marioalmeida

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Post #559
20009346 06 May 2022 20:05

I have SM-PW801-K1 with BK7231T, how can I get bl0937 working?
#560 20009351 06 May 2022 20:08

echojjj echojjj

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Post #560
20009351 06 May 2022 20:08

I'll be flashing this ceiling fan controller over the weekend. It has the CB2S module (BK7231N).
#561 20009398 06 May 2022 20:37

p.kaczmarek2 p.kaczmarek2

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Post #561
20009398 06 May 2022 20:37

marioalmeida wrote:
I have SM-PW801-K1 with BK7231T, how can I get bl0937 working?

BL0937 is not implemented yet, only BL0942.

echojjj wrote:
I'll be flashing this ceiling fan controller over the weekend. It has the CB2S module (BK7231N).

Can you please provide more information about that board? I see there is a ULN2003 on the board, most likely for driving relays, and AMS1117 3.3V as well, but what is the second daughter board in the background? Is this RF433? That's something new, I wonder how it works.
Are relays connected directly to CB2S pins or by TuyaMCU?
If relays are directly connected to CB2S UART lines (TX and RX), please be aware that flashing might fail. In that case, you can either temporary cut tracks (or desolder blocking parts from RX TX lines) or wait for OTA support for this chip.
EDIT:

it seems so, the RX TX tracks are used, so in this case the flashing might be slightly harder than usual. What is on the second board?

Initial OTA is done by tuya-cloudcutter, but tuya-cloudcutter can only support devices that have been cracked first, and in order to crack device someone must read BK7231 memory by wires and send it to tuya-cloudcutter guys here:
https://github.com/tuya-cloudcutter/tuya-cloudcutter/issues

EDIT2: Some progress on my side:

And yet another device, unlucky bulb with a strange WB2L_M1 module which is like WB2L but on BK7231N (not T!), where you have to desolder module to reach RX/TX pads:

And soldered back:

No problem, tuya-cloudcutter guys will get firmware from me and prepare OTA hack for this device so you dont have to solder wires to flash.

I am creating multiplatform open source firmware (Tasmota replacement), right now supporting BK7231T, BK7231N, XR809, BL602, W800, W600, LN882H and soon supporting RTL and W701:
https://github.com/openshwprojects/OpenBK7231T
If you like my work, support me at: https://paypal.me/openshwprojects

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#562 20009473 06 May 2022 21:32

echojjj echojjj

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Post #562
20009473 06 May 2022 21:32

p.kaczmarek2 wrote:
Can you please provide more information about that board? I see there is a ULN2003 on the board, most likely for driving relays, and AMS1117 3.3V as well, but what is the second daughter board in the background? Is this RF433? That's something new, I wonder how it works.

Yes, it is the RF433 for remote control. It has both features "smart" and "rf".
#563 20009495 06 May 2022 21:44

p.kaczmarek2 p.kaczmarek2

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Post #563
20009495 06 May 2022 21:44

Would it be possible to read the markings from both chips on the RF board?

I suspect it might be TuyaMCU, which would require more advanvced configuration and reverse engineering in order to support it.

Can you check where those 4 tracks go? They start at RF board and go to... where?

(I already suspect where they are going but let's check...)

I am creating multiplatform open source firmware (Tasmota replacement), right now supporting BK7231T, BK7231N, XR809, BL602, W800, W600, LN882H and soon supporting RTL and W701:
https://github.com/openshwprojects/OpenBK7231T
If you like my work, support me at: https://paypal.me/openshwprojects

Helpful post? Buy me a coffee.
#564 20009520 06 May 2022 21:56

echojjj echojjj

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Post #564
20009520 06 May 2022 21:56

p.kaczmarek2 wrote:
Would it be possible to read the markings from both chips on the RF board?

I would have to desolder it.

p.kaczmarek2 wrote:
I suspect it might be TuyaMCU, which would require more advanvced configuration and reverse engineering in order to support it.

It is TuyaMCU. I see that on the Tasmota Templates page for this device https://templates.blakadder.com/qiachip_FLC.html has already been done there. Is it same?

p.kaczmarek2 wrote:
Can you check where those 4 tracks go? They start at RF board and go to... where?

(I already suspect where they are going but let's check...)

Those go to the ULN2003
#565 20009577 06 May 2022 22:39

p.kaczmarek2 p.kaczmarek2

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Post #565
20009577 06 May 2022 22:39

echojjj wrote:
I see that on the Tasmota Templates page for this device https://templates.blakadder.com/qiachip_FLC.html has already been done there.

This is good information.
OpenBeken has already a basic TuyaMCU support.
I see they have several dpIDs:
Quote:

dpid1 - fan on/off
dpid3 - fan speed (0 = low, 1 = med, 2 = hi)
dpid6 - self timer (0 = off, 1 = 1hr, 2 = 2hr, 4 = 4hr, 8 = 8hr)
dpid9 - light on/off
dpid7 - timer remaining
dpid17 - ???

but are those all dpids required? Is there only a single light? Or maybe two lights?

echojjj wrote:
Is it same?

I am not sure, but we can assume that it is.

So.... you can help testing and supporting this device.

Here is the basic draft of what has to be done:
1. Cut the RX and TX tracks (between TuyaMCU and CB2S)
2. Read the flash memory of CB2S (to be sure, do it several times) and send flash bin to tuya-cloudcutter guys so futher devices can be programmed remotely
3. Flash OpenBK
4. Connect tracks again
5. Try the dpIDs from Tasmota page.
See this: https://github.com/openshwprojects/OpenBK7231T_App/pull/75 for reference
OpenBK script:
Code: text Expand Select all Copy to clipboard
// start MCU driver startDriver TuyaMCU // let's say that channel 1 is dpid1 - fan on/off setChannelType 1 toggle // map dpid1 to channel1, var type 1 (boolean) linkTuyaMCUOutputToChannel 1 1 1

Check if it works, you can also do the same for light:
Code: text Expand Select all Copy to clipboard
// let's say that channel 2 is dpid9 - light on/off setChannelType 2 toggle // map dpid2 to channel2, var type 1 (boolean) linkTuyaMCUOutputToChannel 2 1 2

Check if it works.

Then I would need to add support for this:
Quote:

dpid3 - fan speed (0 = low, 1 = med, 2 = hi)
dpid6 - self timer (0 = off, 1 = 1hr, 2 = 2hr, 4 = 4hr, 8 = 8hr)

and this:
Quote:

dpid7 - timer remaining

but I can do this remotely, without having device at hand, if you are willing to help.

I am creating multiplatform open source firmware (Tasmota replacement), right now supporting BK7231T, BK7231N, XR809, BL602, W800, W600, LN882H and soon supporting RTL and W701:
https://github.com/openshwprojects/OpenBK7231T
If you like my work, support me at: https://paypal.me/openshwprojects

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#566 20009593 06 May 2022 22:57

echojjj echojjj

Level 8

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Post #566
20009593 06 May 2022 22:57

@p.kaczmarek2 I've never known a ceiling fan to have two lights. It's possible this controller has other functions, but for my purposes, I need fan speed high, fan speed med, fan speed low, fan off, and one light. Timer function is a bonus. I'll try to find the user manual that goes with it.

I'll get started on this in the morning. Thanks!
#567 20009602 07 May 2022 07:57

p.kaczmarek2 p.kaczmarek2

Moderator Smart Home
Topic author Helpful post? (0)

Post #567
20009602 07 May 2022 07:57

I will add fan speed (Low/Med/High) channel type and display on OpenBeken index page tomorrow for you. We shall get it fully supported with your help. First, try reading the original firmware and report progress here. For reading, even bkWriter 1.60 works for BK7231N (I think), but for writing, only Python flasher will do. Good luck!

edit: by Python flasher I mean hid_download_py:
https://github.com/OpenBekenIOT/hid_download_py

Added after 8 [hours] 51 [minutes]:

@echojjj as mentioned yesterday, I am adding a channel type for fan speed:
Quote:

dpid3 - fan speed (0 = low, 1 = med, 2 = hi)

Code: text Expand Select all Copy to clipboard
setChannelType 3 LowMidHigh

Do you know if time can be any value or just one of these?
Quote:

dpid6 - self timer (0 = off, 1 = 1hr, 2 = 2hr, 4 = 4hr, 8 = 8hr)

Can it be set to 5 as well? So 5h?

I am creating multiplatform open source firmware (Tasmota replacement), right now supporting BK7231T, BK7231N, XR809, BL602, W800, W600, LN882H and soon supporting RTL and W701:
https://github.com/openshwprojects/OpenBK7231T
If you like my work, support me at: https://paypal.me/openshwprojects

Helpful post? Buy me a coffee.
#568 20009987 07 May 2022 12:26

kuba2k2 kuba2k2

Level 13

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Post #568
20009987 07 May 2022 12:26

p.kaczmarek2 wrote:
And yet another device, unlucky bulb with a strange WB2L_M1 module which is like WB2L but on BK7231N (not T!),

Did you find Tuya datasheets for that module? I don't see it on their page.
#569 20010056 07 May 2022 13:45

p.kaczmarek2 p.kaczmarek2

Moderator Smart Home

Topic author Helpful post? (0)

Post #569
20010056 07 May 2022 13:45

No, but Tuya is dropping that module in new devices like crazy.
And so far it always came with covered programming pins!
Luckily for you, I am sending flash dumps to cloudcutter guys so you will not have to go through the process I go.
Look, two bulbs, E14 and E27.
E27:

E14:

I have to desolder module with hot air every time.

I am creating multiplatform open source firmware (Tasmota replacement), right now supporting BK7231T, BK7231N, XR809, BL602, W800, W600, LN882H and soon supporting RTL and W701:
https://github.com/openshwprojects/OpenBK7231T
If you like my work, support me at: https://paypal.me/openshwprojects

Helpful post? Buy me a coffee.
#570 20010140 07 May 2022 15:09

echojjj echojjj

Level 8

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Post #570
20010140 07 May 2022 15:09

@p.kaczmarek2 Strange universe! Two things today suddenly my soldering iron has stopped heating and my heat gun won't turn on! What is happening! This is so maddening! I will not buy another cheap soldering iron locally (too hot and short life), so I have to wait. Do you recommend any better soldering iron?

p.kaczmarek2 wrote:
Do you know if time can be any value or just one of these?
Quote:
dpid6 - self timer (0 = off, 1 = 1hr, 2 = 2hr, 4 = 4hr, 8 = 8hr)

Can it be set to 5 as well? So 5h?

Yes, it can be set to any value. The remote control offers 1,2,4,8.

There may be a dimmer function. It is not clear. I read it can dim the light. I read it cannot dim the light. I will purchase some dimmable LEDs this week.

edit: I remembered I have spring pins (somewhere)... I'll print a programming jig and try to power/read/write this thing via spring pins while I wait for a new soldering iron. It could work.
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Topic summary

The discussion revolves around the development and implementation of custom firmware for devices using the BK7231T and BK7231N chips, particularly focusing on creating a mini HTTP server, MQTT support, and integration with Home Assistant. Users share their experiences flashing various smart devices, troubleshooting issues related to UART connections, and configuring GPIO pins for different functionalities. The conversation also touches on the challenges of maintaining WiFi connectivity, the importance of proper pin configuration, and the potential for using I2C for additional device control. Several users report successful firmware updates and the addition of new features, including support for various sensors and devices.
Summary generated by the language model.

PIN	GPIO TYWE3S	GPIO WB3S	Function	Channel
2		23
4	16	14
5	14	26	LED	1
6	12	24
7	13	6	Rel	1
10	15	7
11	2	0
12	0	1	Wifi LED
13	4	9
14	5	8
15	3	10	Btn	1
16	1	11

PIN	GPIO TYWE3S	GPIO WB3S	Function	Channel
2		23
4	16	14
5	14	26	LED	1
6	12	24
7	13	6	Rel	1
10	15	7
11	2	0
12	0	1	Wifi LED
13	4	9	Rel	2
14	5	8	Btn	2
15	3	10	Btn	1
16	1	11	LED	2