Flashing and Deep Sleep Setup Guide for TUYA-BK7231N/CBU Wi-Fi Door Sensor with Home Assistant MQTT

Question

TUYA-BK7231N/CBU-Wi-Fi-door sensor-Home assistant MQTT setup

Need detailed setup for flashing the TUYA-BK7231N/CBU-Wi-Fi-door sensor and Home assistant MQTT setup please. Thank you.

2023-08-06 UPDATE:
Here is a nice step by step guide for flashing it and deep sleep setup:
[BK7231N/CBU] Door sensor without TuyaMCU - easy flashing and configuration guide
NOTE: The following sensor is using BK7231 deep sleep, it has no TuyaMCU.

p.kaczmarek2 · Accepted Answer

Hello, this device is already supported by OpenBeken: You can find our flasher here: I think the setup approach from here could work:

khafif · Answer

- mqtt was discovered by HA. door sensor goes sleep but the deep sleep and push button are not working when sensor goes sleep. I have to manually turn it off and on every time it goes to sleep.

- I do not have deep sleep in the drop down list (attached photo).

Thank you.

Added after 24 [minutes]:

in this post (firmware) you have displayed sensor battery at HO, but now it is not showing.
https://www.elektroda.com/rtvforum/topic3914412.html is the new version missing this option or it is me. Thanks.

Added after 11 [hours] 27 [minutes]:

I know you need my tuya back, copy attached original tuya firmware.

khafif · Answer

weblogInfo:MQTT:Channel has changed! Publishing 1 to channel 43 Info:MQTT:Publishing val 1 to BK_DS1/43/get retain=0Info:MQTT:MQTT client in mqtt_incoming_publish_cb topic BK_DS1/43/getInfo:MQTT:Channel has changed! Publishing 1 to channel 47 Info:MQTT:Publishing val 1 to BK_DS1/47/get retain=0Info:MQTT:MQTT client in mqtt_incoming_publish_cb topic BK_DS1/47/getam going to try the deep sleep and the push button.

p.kaczmarek2 · Answer

Hello again, if the sensor does not wake up, it can mean that:
- you have chosen wrong IO for sensor role
- you have incorrect DSEdge setting (DSEdge 2 is default, there is also DSEdge 1 or DSEdge 0)

khafif wrote:

- I do not have deep sleep in the drop down list ( attached photo).

For which role are you looking for? It seems you have all required roles here. I can see one role for DoorSensor (the PD role, input with PullDown). If you want a pull-up input door sensor role, scroll up, it's a bit earlier on the list.

Don't forget that if you set a Button role for pairing Button, it will also be able to wake up the device in the time of emergency. That way you can play around with settings and choose the ones that suits you best.

khafif · Answer

1- I managed (don't ask how) to get these results.
2- I cannot remove/find channel 1 in any setup?
3- I had to use dInput_n to reverse HO sensor action.
4- Door sensor sleep mode in HO not displaying ON or OFF?
5- MQTT state not displaying disconnected when in sleep mode?
6- How can I control the sleep mode duration (to reduce the time frame)?
7- How to turn OFF LED, it is always on.
8- Can we blink the LED (in Bright light) when awake mode triggered by Button or Door Sensor?

Added after 4 [minutes]:

One more clarification, can we display battery state in HO as voltage and capacity percentage so we can enable an alarm triggered at battery percentage to be replaced!

Thank you for the great achievement, keep it going and regards to all the team.

simovicsava · Answer

Guys, I found the correct settings. ))) Link

khafif · Answer

Thanks, I’ll check it and give feed back.

p.kaczmarek2 · Answer

DSEdge (the wake up edge of deep sleep, either "opposite of current", "rising" or "falling") and the exact Door Sensor pin type (pull up, no pull up, etc) can change between devices. Please always remember to set the Button role for your button so you can do an emergency wake up of the device if the door sensor GPIO is configured incorrectly.

khafif · Answer

now the door sensor is not connected to my wifi router, I cannot reset to access AP mode, I did flash it more than 5 times using the UART flasher, still cannot access the access point web site to enter my WiFi pass-code. The BK flasher always writing file data to chip is success.

is there any other methods/ways to follow to diagnose the board.


Starting flash new (no backup)!
Now is: 08 July 2023 18:35:40.
Flasher mode: BK7231N
Going to open port: COM5.
Serial port open!
Getting bus... (now, please do reboot by CEN or by power off/on)
Getting bus failed, will try again - 0/100!
Getting bus failed, will try again - 1/100!
Getting bus failed, will try again - 2/100!
Getting bus success!
Going to set baud rate setting (921600)!
Will try to read device flash MID (for unprotect N):
Flash MID loaded: 1560EB
Will now search for Flash def in out database...
Flash def found! For: 1560EB
Flash information: mid: 1560EB, icName: TH25Q_16HB, manufacturer: TH, szMem: 1000000, szSR: 2, cwUnp: 0, cwEnp: 7, cwMsk: 407C, sb: 2, lb: 5, cwdRd: 05-35-FF-FF, cwdWr: 01-FF-FF-FF
Entering SetProtectState(True)...
sr: 80
sr: 680
final sr: 680
msk: 407c
cw: 0, sb: 2, lb: 5
bfd: 0
SetProtectState(True) success!
Reading file firmwares/OpenBK7231N_QIO_1.17.104.bin...
Loaded 1220464 bytes from firmwares/OpenBK7231N_QIO_1.17.104.bin...
Preparing to write data file to chip - resetting bus and baud...
Getting bus... (now, please do reboot by CEN or by power off/on)
Getting bus success!
Going to set baud rate setting (921600)!
Will try to read device flash MID (for unprotect N):
Flash MID loaded: 1560EB
Will now search for Flash def in out database...
Flash def found! For: 1560EB
Flash information: mid: 1560EB, icName: TH25Q_16HB, manufacturer: TH, szMem: 1000000, szSR: 2, cwUnp: 0, cwEnp: 7, cwMsk: 407C, sb: 2, lb: 5, cwdRd: 05-35-FF-FF, cwdWr: 01-FF-FF-FF
Entering SetProtectState(True)...
sr: 80
sr: 680
final sr: 680
msk: 407c
cw: 0, sb: 2, lb: 5
bfd: 0
SetProtectState(True) success!
Going to do erase, start 0, sec count 298!
Erasing sector 0... ..........
Writing file data to chip successs.

p.kaczmarek2 · Answer

@khafif in worst case, you can try doing full 2MB erase but maybe backup RF partition first so you can restore it later... I will look into adding a dedicated option for that to our flasher.

2023-08-06 UPDATE:
Here is a nice step by step guide for flashing it and deep sleep setup:
[BK7231N/CBU] Door sensor without TuyaMCU - easy flashing and configuration guide
NOTE: The following sensor is using BK7231 deep sleep, it has no TuyaMCU.

Flashing and Deep Sleep Setup Guide for TUYA-BK7231N/CBU Wi-Fi Door Sensor with Home Assistant MQTT

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