OpenBK7231N_1.17.224 firmware Change Module type and run TuyaMCU commands

Question

I just installed OpenBK7231N_1.17.224 firmware on a gas sensor and have instructions on how to configure it.

I should switch to Module 54 - How can I do that? In Tasmota, you just write Module 54 and reboot. When I try the same command in OpenBK, I just get "Unknown command".

The configuration should be done like this:
Backlog TuyaMCU 79,2; TuyaMCU 71,19; TuyaMCU 72,101; TuyaMCU 11,16; TuyaMCU 12,8; TempRes 0

How can I configure that in OpenBK?

p.kaczmarek2 · Accepted Answer

Version 1.17.226 is now live at Github:

p.kaczmarek2 · Answer

Hello, please see: Obk is more flexible in that matter. We are using linkTuyaMCUOutputToChannel to link dpIDs to channels. This allows us to create more scriptable features because channels are like universal variable containers. You can search our forum for more information of usage of this command. For example, here is a TH06 temperature sensor tutorial: Is your device using 9600 baud or a high speed baud?

tellblom · Answer

Thanks.So if I read this correctly, it should be like this or have I misunderstood everything?##TuyaMCU 79,2; (this says it's a gas sensor or dpId 2 if I have understood it correctly) will belinkTuyaMCUOutputToChannel 2 2 2setChannelType 2 ReadOnly##TuyaMCU 71,19; (this says it's a temp sensor or dpId 19 if I have understood it correctly) will belinkTuyaMCUOutputToChannel 19 2 3setChannelType 3 ReadOnly##TuyaMCU 72,101; (this says it's a humidity sensor or dpId 101 if I have understood it correctly) will belinkTuyaMCUOutputToChannel 101 2 4setChannelType 4 ReadOnly##TuyaMCU 11,16; (this says it's a relay or dpId 16 if I have understood it correctly) will belinkTuyaMCUOutputToChannel 16 1 5setChannelType 5 toggle##TuyaMCU 12,8; (this says it's a relay or dpId 8 if I have understood it correctly) will belinkTuyaMCUOutputToChannel 8 1 6setChannelType 6 toggleIs your device using 9600 baud or a high-speed baud?Yes, it does not communicate when setting the baud rate to something else.Update:When I set the above, the buttons (channel 5 and 6) work, but I get no values on the other channels.

p.kaczmarek2 · Answer

Something like that, you might want to use other channel type for temperature, see: If you don't know baud, please do first Tuya config extraction: Have you looked at the other autoexec bat examples on our docs?

tellblom · Answer

Baud rate is 9600.

But it seems like I need my USB -> TTL to get the other data.

The autoexec.bat file looks like this:

startDriver TuyaMCU
startDriver tmSensor
startDriver NTP
linkTuyaMCUOutputToChannel 2 2 2
setChannelType 2 ReadOnly
SetChannelLabel 3 Gas
linkTuyaMCUOutputToChannel 19 2 3
setChannelType 3 ReadOnly
SetChannelLabel 3 TempSet
linkTuyaMCUOutputToChannel 101 2 4
setChannelType 4 Temperature
SetChannelLabel 4 Temperature
linkTuyaMCUOutputToChannel 16 1 5
setChannelType 5 toggle
SetChannelLabel 5 Mute Alarm
linkTuyaMCUOutputToChannel 8 1 6
setChannelType 6 toggle
SetChannelLabel 6 Alarm

p.kaczmarek2 · Answer

Please use:


tuyaMcu_defWiFiState 4

to force default "paired to cloud" TuyaMCU state, even if it's not online. This may cause more dpIDs to get send to WiFI module.

To force full dpIDs update, you can use:


tuyaMcu_sendQueryState

Then in Web App see the log, in the log you will see all received packets, their dpIDs, etc.

Read more: https://github.com/openshwprojects/OpenBK7231T_App/blob/main/docs/commands.md

tellblom · Answer

Ahh, it seems to update the values when running the tuyaMcu_sendQueryState command.But it resets every 2 minutes. I suppose I should schedule the command tuyaMcu_sendQueryState to run every minute.

p.kaczmarek2 · Answer

I think those variables should be sent automatically, as long as you set wifi state 0x04 either in script or by connecting to MQTT. Still, if you want to do something repeatingly, search for repeating events:
https://github.com/openshwprojects/OpenBK7231T_App/blob/main/docs/autoexecExamples.md


addRepeatingEvent [RepeatTime] [RepeatCount] [Command]

tellblom · Answer

I found that,Thanks for the query. It gave me more data.The only thing I have left now, I think, is that the alarm states (gas and heat) have inverted valuesand they trigger the alarm when the state is OFF.Is there a way to invert this?linkTuyaMCUOutputToChannel 1 2 1setChannelType 1 toggleSetChannelLabel 1 GasAlarmTriggered

p.kaczmarek2 · Answer

What exactly would you like to invert? The colors of the toggle? I can create a toggle_inv channel type and push it, if you think that would suit your needs.

tellblom · Answer

The problem is that if I just connect it to Home Assistant, the ON/OFF value received from the gas alarm will be ON normally (when not triggered).But, well, the alarm goes OFF

p.kaczmarek2 · Answer

Ah ok, so I have added a Toggle_Inv channel type for you. Please wait for build to finish, update, and try to use it. This should work like Toggle, but states will be inverted. Still, I think that I could come up with a better solution later, but maybe, for now, just try that Toggle_Inv and let me know if it works. It should be up in 1.17.226

tellblom · Answer

Thanks I'll try it out

tellblom · Answer

This is the autoexec.bat i now have that seems to work (not configured with the toggle_inv firmware yet)


startDriver TuyaMCU
startDriver tmSensor
startDriver NTP
// CET time
ntp_timeZoneOfs 02:00

tuyaMcu_sendCurTime

tuyaMcu_defWiFiState 4


//Gas larm triggered when this is OFF
linkTuyaMCUOutputToChannel 1 2 1
setChannelType 1 toggle
SetChannelLabel 1 GasLarm

// %LEL value (LEL= Lower Explosion Limit) 
linkTuyaMCUOutputToChannel 2 2 2
setChannelType 2 Readonly
SetChannelLabel 2 Gas

// Current temperature
linkTuyaMCUOutputToChannel 19 2 3
setChannelType 3 Temperature
SetChannelLabel 3 Temperature


// The temperature where the Heat Alarm will trigger
linkTuyaMCUOutputToChannel 101 2 4
setChannelType 4 ReadOnly
SetChannelLabel 4 TempSet

// Will silence the alarm if triggered
linkTuyaMCUOutputToChannel 16 1 5
setChannelType 5 toggle
SetChannelLabel 5 Mute_Alarm

//Then triggered the test alarm function will go off
linkTuyaMCUOutputToChannel 8 1 6
setChannelType 6 toggle
SetChannelLabel 6 TestAlarm 

//Heat alarm triggered when this goes OFF
linkTuyaMCUOutputToChannel 18 4 7
setChannelType 7 toggle
SetChannelLabel 7 Heat_Alarm


//Preheat mode status 
linkTuyaMCUOutputToChannel 10 2 8
setChannelType 8 ReadOnly
SetChannelLabel 8 Preheat

//Will trigger when sensor should be replaced
linkTuyaMCUOutputToChannel 10 2 9
setChannelType 9 ReadOnly
SetChannelLabel 9 LifeCycle

// Sets the Heat alarm to go off when the temperature is 55C
tuyaMcu_sendState 101 2 55

//addClockEvent 06:00 0xff 1 tuyaMcu_sendCurTime
//So that the display has the correct time. It seems to los the time now and then 
addRepeatingEvent 3600 -1 tuyaMcu_sendCurTime

//Query the sensors every 20 seconds
addRepeatingEvent 20 -1 tuyaMcu_sendQueryState

p.kaczmarek2 · Answer

You don't need tmSensor if device is not a battery-powered TuyaMCU sensor like a door sensor or humidity/temperature sensor.

tellblom · Answer

Ok thanks I missread then ..

OpenBK7231N_1.17.224 firmware Change Module type and run TuyaMCU commands

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