Hi all, I'm really stuck with this device and really need your kind help as I'm a noob in this field. It's a TUYA Door Window Sensor, BK7231N, board number MC36-CB3S and the WiFi module number CB3S and I do not see the TuyaMCU on it. Please help me with the correct configs for this device. I...

Home Assistant Discovery must be done after every configuration change. So, if you've paired a device with HA, and later configured a door sensor, then you must do Discovery again in order for changes to show up in HA.

Well, it seems that our Tuya Config decoder is able to find a lot of useful information in this flash: Code: text Expand Select all Copy to clipboard Device configuration, as extracted from Tuya: - Button (channel 0) on P24 - Status LED on P26 - PIR sensor on P8 - Battery Relay on P14 - Battery Max Voltage: 3000 - Battery Min Voltage: 2200 - Battery ADC on P23 Device seems to use Battery Driver. See more details here: Device seems to be using CB3S module, which is using BK7231N. And the Tuya section starts at UNCOMMON POSITION 0 So the configuration itself should be relatively easy. Have you tried following the similiar topics, usually based on DoorSensor driver or a manual, script-only approach? PS: The pir sensor is obviously the hall sensor in case of this device.

Ok, that's good. Now with this info, how should I set these information to the PIN Settings Config and channel types? Also, if there is any startup command needed? I'm not sure if I did these settings correctly because in HA it shows only like this:

Seeking Configuration for TUYA Door Window Sensor BK7231N, MC36-CB3S with CB3S Wifi Module

rufus33 1623 3

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#1 20852369 08 Dec 2023 17:22

rufus33 rufus33

Level 2
Post #1
20852369 08 Dec 2023 17:22

Hi all, I'm really stuck with this device and really need your kind help as I'm a noob in this field.
It's a TUYA Door Window Sensor, BK7231N, board number MC36-CB3S and the WiFi module number CB3S and I do not see the TuyaMCU on it. Please help me with the correct configs for this device. I have attached the dump file from the BK7231Flasher software.

I have managed to flash the open Beken firmware on it and it's able to connect to my router.

[url=https://obrazki.elektroda.pl/2951759200_1702052516.jpg]

Attachments:

gpio.bin Download (60 KB)

BK7231N_TuyaConfig_DoorSensorFront.bin Download (72 KB)
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#2 20854326 10 Dec 2023 01:17

p.kaczmarek2 p.kaczmarek2

Moderator Smart Home
Helpful post? (0)

Post #2
20854326 10 Dec 2023 01:17

Well, it seems that our Tuya Config decoder is able to find a lot of useful information in this flash:
Code: text Expand Select all Copy to clipboard
Device configuration, as extracted from Tuya: - Button (channel 0) on P24 - Status LED on P26 - PIR sensor on P8 - Battery Relay on P14 - Battery Max Voltage: 3000 - Battery Min Voltage: 2200 - Battery ADC on P23 Device seems to use Battery Driver. See more details here: https://www.elektroda.com/rtvforum/topic3959103.html Device seems to be using CB3S module, which is using BK7231N. And the Tuya section starts at UNCOMMON POSITION 0

So the configuration itself should be relatively easy. Have you tried following the similiar topics, usually based on DoorSensor driver or a manual, script-only approach?
https://www.elektroda.com/rtvforum/find.php?q=DoorSensor

PS: The "pir sensor" is obviously the hall sensor in case of this device.

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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#3 20855821 11 Dec 2023 00:46

rufus33 rufus33

Level 2

Topic author Helpful post? (0)

Post #3
20855821 11 Dec 2023 00:46

Ok, that's good. Now with this info, how should I set these information to the PIN Settings Config and channel types? Also, if there is any startup command needed? I'm not sure if I did these settings correctly because in HA it shows only like this:
Helpful post

#4 20855955 11 Dec 2023 08:50

p.kaczmarek2 p.kaczmarek2

Moderator Smart Home

Helpful post? (+1)

Helpful post
Post #4
20855955 11 Dec 2023 08:50

Home Assistant Discovery must be done after every configuration change. So, if you've paired a device with HA, and later configured a door sensor, then you must do Discovery again in order for changes to show up in HA.

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.
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Seeking Configuration for TUYA Door Window Sensor BK7231N, MC36-CB3S with CB3S Wifi Module

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