[BK7231N - CBU] TONGOU TO-Q-SY1-JWT Din Rail Wifi Switch with power metering

Each at a time of controller output remains high forever:
"24": "Rel;1",
"26": "Rel_n;1"

Also relay coil input remains or high or negative. But not fall to 0.

Here I measure one of controller output:


I use latest firmware: Build: Build on Dec 13 2023 21:51:33 version 1.17.343
And configuration from (Tongou) TO-Q-SY-JWT Switch and Meter for DIN Rail.

I'm newbie in OpenBK so may be somewhere I do something wrong.

Well, it looks like you have configured the GPIOs as a "dumb" relays, the ones that just copy the channel value to GPIO (in _n version, it's a negated value). This will not work as expected, as it's not a bridge.
If you want to use our bridge driver, then you have to choose the bridge driver pins:
https://github.com/openshwprojects/OpenBK7231T_App/blob/main/docs/ioRoles.md
Here are bridge pins:

Please try to choose them, then reboot (so driver can autostart) and recheck if it behaves differently.

Added after 1 [minutes]:

PS: Once you configure it as I said, assuming it works better, can you post your config so I can update the old one? You've got the Rel/Rel_n from old config, correct? We need to fix it.

You are absolutely right! But I'm copy configuration from site. =(

My config was:

"pins": {
"9": "LED_n;1",
"15": "WifiLED_n;0",
"17": "Btn;1",
"24": "Rel;1",
"26": "Rel_n;1"
},

Now I change it to:
"pins": {
"9": "LED_n;1",
"15": "WifiLED_n;0",
"17": "Btn;1",
"24": "BridgeFWD;1",
"26": "BridgeREV;1"
},

Also may be it should be fixed for similar relays:
(Tuya) Circuit breaker with bridge relay (TOMZ-TOB9-63M)
and
[BK7231N - CBU] EARU Electric RDCBC/TJ-2P DIN-rail relay/energy meter


BUT after I made this, switch stop latch contacts at all.
I have no oscilloscope to check if impulse appear and how long it is. I think it's length not enough.
I've check my relay driver and it's marked as 762a. So I think that it's the same.

Also if I change output type to Rel and Rel_n all become work but also start to heating.
May be there is another output type where I can change output delay?

So the config in database is outdated? Ok, I can update it.

I don't know much about bridge driver, but there is a BridgePulseLength that can be put in startup command or in autoexec.bat, it can be used to adjust the pulse length of bridge driver, maybe you need to calibrate that?
During testing, you can also use BridgePulseLength at runtime at Web App console or in execute command field.

Debug:API:POST to api/cmnd
Debug:CMD:cmd [BridgePulseLength 100]
Error:CMD:cmd BridgePulseLength NOT found (args 100)
Info:CMD:[WebApp Cmd 'BridgePulseLength 100' Result] Unknown command

also i try to add this string: "BridgePulseLength 100"
To autoexec.bat.
Nothing.

I feel myself dumb.

Well, you mean you get that:

That means bridge driver is not running. Look here:

What do you have running there?

If I set bridge pins, look:

and I reboot my device, I get:

and then command works:

Exact!
0 drivers active, total 34

But I add Bridge pins to configuration, and reboot not once after add it.


Thank you for your support!

Well, do you have older version or something? In worst case... you can start driver manually with startDriver...

As I said before
Build on Dec 13 2023 21:51:33 version 1.17.343

No ideas...

Ok , do what happens when you do startDriver Bridge in command line?

>>20862225
Are you sure you have a good template?
This topic has already been discussed somewhere before.
Someone wrote that he had REL and REL_i set and it actually worked, but the result was constant power supply to the coil through the bridge. I had this happen to me in the first phase. The coil was heating up and the whole device was hot (My Tongou TO-Q-SY1-JWT)
I corrected the template by selecting HBridge instead of Rel and the heating of the relay coil ended.

it was like that


it worked but it got hot

now I have this


and the problem is over

>>20862696

Hello again!

Yes, after executing command: "startDriver Bridge", driver loaded and all start to work like a charm!
Strange, that driver was not loaded automatically, so I've add it to the autoexec.bat. Now all work as expected.

Thank you very much for supporting!

Bridge driver should be starting automatically, unless you have disabled autostart in flags....

Hi, i flashed my to-q-sy1-jwt with serial cable and make an update to the last version 1.17.432 and it works after the configuration with the build in Application.

i checked the metering and it was completly wrong, now the power-calibration is the next current, voltage, power.

now the metering is correct with load, but without load it is about 3-4 Watt.

can this also calibrated?

Regards
robert

I think there is a flag to auto-zero the measurement when the relay is off. That's not perfect, but maybe it can help?"

Ok, this is not the best way, but it helps a little bit

Is only power non-zero with no load, or is the current non-zero as well?

current is also non-zero with none load

Added after 5 [hours] 5 [minutes]:

I have a second tongou with 25a and metering and there is still the same problem, now with the newest firmware 1.17.441.
The flag 38 is not realy an option, because of a poweroutage, the device starts ang goes in the poweron status.

But this is not recognize by the firmware an still no metering is active.

So according to all hints here my template is:



all works, device is not getting hot.
Only the power measurement must be adjusted - like at any other tasmota device too.