Hello! I bought the TOB9-63M WIFI Smart Switch Energy Meter Relay. I made the backup and flashed OpenBK7231N_QIO_1.17.391.bin. Everything worked fine until I added SetStartValue 1 1; to the startup command line. The device hangs after restart and the LEDs light up a little. If I re-flash the...

I can check that SetStartValue command, but can you show your full script? Futhermore, why are you using this command? It should be possible to do the same from GUI... Maybe you are using it in some kind of way that was not predicted by us at the development stage. Alternatively, you can just put a setChannel call in your script and set channel to 1, it will work in a very similiar way... or maybe even better, if that's TuyaMCU device

Which flashing tool are you using to write firmware? Our flasher has option to clear command line, I think.

The final startup command was something like:Code: text Expand Select all Copy to clipboardbacklog SetStartValue 1 1; startDriver NTP; ntp_setServer 217.147.223.78; ntp_timeZoneOfs 2; startDriver BL0942; SetupEnergyStats 1 60 5;But the problem is that even if I now rewrite OpenBK firmware with clean OBK settings - device hangs. Relay works only if I flash original firmware which I dumped before flashing OpenBK.

I use BK7231Flasher. Command line is clear but the device doesn't boot with OpenBK.

Thanks for the tip. I soldered the wire to TX2 and checked the console output. It turned out that the device was booting. For some reason the pin assignment was simply reset after changing startup command and restart the device. For now, I have another problem. I set these pins settings: Code: text Expand Select all Copy to clipboard pins: { 9: LED;1, 15: WifiLED;1, 17: Btn_Tgl_All;1, 24: BridgeFWD;1, 26: BridgeREV;1 }, If I press Toggle 1 button in the web-interface - I hear click and relay changes the state. But if I press the button on the device - nothing happens. Flag 41(Ignore all button events) isn't active. What can be wrong?

Is there some information in log when you press the button on the device?

Code: text Expand Select all Copy to clipboardInfo: GEN:17 Button_OnInitialPressDown Info: GEN:17 key_short_press

I checked src of firmware. Btn_Tgl_All works with relays only. But we have type Bridge.Code: text Expand Select all Copy to clipboardvoid CHANNEL_DoSpecialToggleAll() { int anyEnabled, i; anyEnabled = 0; for (i = 0; i 0) { anyEnabled = true; } } for (i = 0; i

That's very good finding, I've applied your fix. Please update and retry.

TOB9-63M Smart Switch Freezes After Adding SetStartValue Command with OpenBK

Exkilla 1320 11

Report a violation of the law

Reply | New topic

#1 20895551 07 Jan 2024 10:19

Exkilla Exkilla

Level 2

Topic author

Post #1
20895551 07 Jan 2024 10:19

Hello! I bought the "TOB9-63M" WIFI Smart Switch Energy Meter Relay. I made the backup and flashed "OpenBK7231N_QIO_1.17.391.bin". Everything worked fine until I added "SetStartValue 1 1;" to the startup command line. The device hangs after restart and the LEDs light up a little. If I re-flash the OpenBK firmware - nothing changes. It still hangs. If I restore the original firmware (Tuya) from the backup - the relay works fine. Please tell me what the problem is and how to solve it?
ADVERTISEMENT
Helpful post

#2 20896320 07 Jan 2024 16:23

p.kaczmarek2 p.kaczmarek2

Moderator Smart Home

Helpful post? (+1)

Helpful post
Post #2
20896320 07 Jan 2024 16:23

I can check that SetStartValue command, but can you show your full script?

Futhermore, why are you using this command? It should be possible to do the same from GUI...

Maybe you are using it in some kind of way that was not predicted by us at the development stage.

Alternatively, you can just put a setChannel call in your script and set channel to 1, it will work in a very similiar way... or maybe even better, if that's TuyaMCU 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

Helpful post? Buy me a coffee.
#3 20896946 07 Jan 2024 20:17

Exkilla Exkilla

Level 2
Topic author Helpful post? (0)

Post #3
20896946 07 Jan 2024 20:17

The final startup command was something like:

Code: text Expand Select all Copy to clipboard
backlog SetStartValue 1 1; startDriver NTP; ntp_setServer 217.147.223.78; ntp_timeZoneOfs 2; startDriver BL0942; SetupEnergyStats 1 60 5;

But the problem is that even if I now rewrite OpenBK firmware with clean OBK settings - device hangs. Relay works only if I flash original firmware which I dumped before flashing OpenBK.
ADVERTISEMENT
Helpful post

#4 20896962 07 Jan 2024 20:23

p.kaczmarek2 p.kaczmarek2

Moderator Smart Home

Helpful post? (+1)

Helpful post
Post #4
20896962 07 Jan 2024 20:23

Which flashing tool are you using to write firmware?

Our flasher has option to clear command line, I think.

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.
ADVERTISEMENT
#5 20896988 07 Jan 2024 20:34

Exkilla Exkilla

Level 2

Topic author Helpful post? (0)

Post #5
20896988 07 Jan 2024 20:34

I use "BK7231Flasher". Command line is clear but the device doesn't boot with OpenBK.
Helpful post

#6 20897089 07 Jan 2024 21:09

p.kaczmarek2 p.kaczmarek2

Moderator Smart Home

Helpful post? (+1)

Helpful post
Post #6
20897089 07 Jan 2024 21:09

Ok, so what does the debug log output on TX2 say?

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.
#7 20897368 07 Jan 2024 22:49

Exkilla Exkilla

Level 2
Topic author Helpful post? (0)

Post #7
20897368 07 Jan 2024 22:49

Thanks for the tip. I soldered the wire to TX2 and checked the console output. It turned out that the device was booting. For some reason the pin assignment was simply reset after changing startup command and restart the device.

For now, I have another problem. I set these pins settings:

Code: text Expand Select all Copy to clipboard
"pins": { "9": "LED;1", "15": "WifiLED;1", "17": "Btn_Tgl_All;1", "24": "BridgeFWD;1", "26": "BridgeREV;1" },

If I press "Toggle 1" button in the web-interface - I hear click and relay changes the state. But if I press the button on the device - nothing happens. Flag 41(Ignore all button events) isn't active. What can be wrong?
ADVERTISEMENT
#8 20897584 08 Jan 2024 07:49

p.kaczmarek2 p.kaczmarek2

Moderator Smart Home

Helpful post? (0)

Post #8
20897584 08 Jan 2024 07:49

Is there some information in log when you press the button on the 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

Helpful post? Buy me a coffee.
#9 20904666 08 Jan 2024 19:18

Exkilla Exkilla

Level 2
Topic author Helpful post? (0)

Post #9
20904666 08 Jan 2024 19:18

Code: text Expand Select all Copy to clipboard
Info: GEN:17 Button_OnInitialPressDown Info: GEN:17 key_short_press

#10 20906463 13 Jan 2024 03:27

Exkilla Exkilla

Level 2

Post #10

20906463 13 Jan 2024 03:27

I checked "src" of firmware. "Btn_Tgl_All" works with relays only. But we have type "Bridge".

void CHANNEL_DoSpecialToggleAll() {
	int anyEnabled, i;
	anyEnabled = 0;
	for (i = 0; i < CHANNEL_MAX; i++) {
		if (CHANNEL_IsPowerRelayChannel(i) == false)
			continue;
		if (g_channelValues[i] > 0) {
			anyEnabled = true;
		}
	}
	for (i = 0; i < CHANNEL_MAX; i++) {
		if (CHANNEL_IsPowerRelayChannel(i)) {
			CHANNEL_Set(i, !anyEnabled, 0);
		}
	}
}

bool CHANNEL_IsPowerRelayChannel(int ch) {
	int i;
	for (i = 0; i < PLATFORM_GPIO_MAX; i++) {
		if (g_cfg.pins.channels[i] == ch) {
			int role = g_cfg.pins.roles[i];
			// NOTE: do not include Battery relay
			if (role == IOR_Relay || role == IOR_Relay_n) {
				return true;
			}
		}
	}
	return false;
}

Maybe need to replace line in the function "CHANNEL_IsPowerRelayChannel" from:

if (role == IOR_Relay || role == IOR_Relay_n) {

to:

if (role == IOR_Relay || role == IOR_Relay_n || role == IOR_BridgeForward || role == IOR_BridgeReverse) {

Is it correct?

P.S. We can't just change the type to "Relay" because device is getting very hot (mentioned in another topic about this device). Bistable relay is used.

#11 20906548 13 Jan 2024 08:43

p.kaczmarek2 p.kaczmarek2

Moderator Smart Home

Helpful post? (0)

Post #11
20906548 13 Jan 2024 08:43

That's very good finding, I've applied your fix. Please update and retry.

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.
#12 20906660 13 Jan 2024 10:21

Exkilla Exkilla

Level 2

Topic author Helpful post? (0)

Post #12
20906660 13 Jan 2024 10:21

It works fine now! Thanks! =)
Create an account, log in here. You will receive points by participating in discussions.
Join this discussion.

Install Elektroda application

Didn't find an answer? Ask Artificial Intelligence

*I agree to send the question to OpenAI, Anthropic PBC, Perplexity AI, Inc., Kagi Inc., Google LLC - owners of language models in order to prepare the best response. The companies may monitor and log information entered into the form.

*I agree to publicly display my question and answer. The question and answer will be publicly available to everyone. The process may take a few minutes. Upon completion, you will be redirected to the page with the answer.

Wait...(2min)

Reply | New topic

Report a violation of the law

Topic summary

✨ The discussion revolves around issues faced with the TOB9-63M WiFi Smart Switch after adding the "SetStartValue 1 1;" command to the startup script while using the OpenBK firmware. The device freezes upon restart, and re-flashing the firmware does not resolve the issue, while the original Tuya firmware works fine. Users suggest checking the full script and using alternative commands. The author later discovers that the pin assignments reset after changing the startup command. Despite setting the pins correctly, the physical button on the device does not respond, leading to further investigation into the firmware's handling of button events. A proposed fix involves modifying the firmware code to recognize the device's bridge role, which ultimately resolves the issue.

FAQ

TL;DR: In Jan 2024, a firmware fix added Bridge toggle support; "Please update and retry." If OpenBK appears frozen after SetStartValue, verify pins and check TX2 logs. [Elektroda, p.kaczmarek2, post #20906548]

Why it matters: This FAQ helps OpenBK users on BK7231N TOB9-63M resolve boot issues and restore button control after startup changes.

Quick Facts

Tested firmware noted: OpenBK7231N_QIO_1.17.391 on a TOB9-63M smart switch. [Elektroda, Exkilla, post #20895551]
Example startup backlog uses UTC+2 and a 60‑second energy window (SetupEnergyStats 1 60 5). [Elektroda, Exkilla, post #20896946]
UART debugging via TX2 showed GEN:17 key_short_press button events. [Elektroda, Exkilla, post #20904666]
Fix merged: Btn_Tgl_All now also toggles BridgeForward/Reverse; update firmware to enable the physical button. [Elektroda, p.kaczmarek2, post #20906548]
Hardware uses a bistable (latching) relay; avoid mapping as standard Relay to prevent heating. [Elektroda, Exkilla, post #20906463]

Why does my TOB9-63M seem to freeze after adding SetStartValue to startup?

It often still boots, but the pin assignment can reset after a startup command change. That leaves controls unassigned, so the UI appears dead. Confirm activity over TX2, then reapply pin roles to restore control. Reconfigure LED, button, and bridge coil pins if they cleared. [Elektroda, Exkilla, post #20897368]

How can I recover if OpenBK won’t boot after a startup script change?

Use the project flasher’s option to clear the command line, then reboot. If the board still misbehaves, reflash OpenBK and reconfigure pins from scratch. This removes a bad startup command that can block normal initialization. [Elektroda, p.kaczmarek2, post #20896962]

How do I capture OpenBK debug logs on this device?

Use the TX2 UART output to see boot and button events. "Ok, so what does the debug log output on TX2 say?" Follow that hint: attach a USB‑UART to TX2, open a console, and power cycle to read logs. 1) Connect TX2. 2) Open serial console. 3) Reboot and observe. [Elektroda, p.kaczmarek2, post #20897089]

Why doesn’t the physical button toggle even though the web Toggle works?

Earlier builds only toggled Relay roles, so Btn_Tgl_All ignored Bridge coils. The maintainer merged a fix to include BridgeForward/Reverse. Update to a newer build and retest. "Please update and retry." After updating, button toggling works with bistable relays. [Elektroda, p.kaczmarek2, post #20906548]

What pin roles should I assign for a bistable relay on TOB9-63M?

Map the coils to BridgeFWD and BridgeREV, and the front button to Btn_Tgl_All. Example mapping seen: LED on pin 9, WifiLED on 15, Btn_Tgl_All on 17, BridgeFWD on 24, BridgeREV on 26. With the fix, Btn_Tgl_All will toggle the bridge channels. [Elektroda, Exkilla, post #20897368]

Is it safe to map a bistable relay as a standard Relay?

No. The device uses a latching (bistable) relay. Mapping it as a normal Relay can drive a coil continuously and cause heating. Keep roles as BridgeForward/BridgeReverse for safe operation. [Elektroda, Exkilla, post #20906463]

Can I avoid SetStartValue and still set power state on boot?

Yes. Use a script line with setChannel to initialize the desired state, or configure this via the GUI. The maintainer recommended setChannel as a simpler, safer alternative to SetStartValue. [Elektroda, p.kaczmarek2, post #20896320]

Which OpenBK build contains the Bridge toggle fix for the button?

A fix was applied by the maintainer in mid‑January 2024. Update to a newer OpenBK build than that date to include Btn_Tgl_All support for Bridge roles. [Elektroda, p.kaczmarek2, post #20906548]

What do these log lines mean: Button_OnInitialPressDown and key_short_press?

They indicate the firmware detected a valid button event. The sample shows GEN:17, meaning channel 17 received a short press. If nothing toggles afterward, your mapping or toggle logic is wrong. Update firmware or correct pin roles. [Elektroda, Exkilla, post #20904666]

My device looks bricked, but stock Tuya firmware works. What does that indicate?

Hardware is fine. Your OpenBK configuration is mis-set or incompatible. Restore OpenBK with clean settings, then correctly remap pins. You can also keep Tuya stock if you prefer stability. [Elektroda, Exkilla, post #20895551]

What tool should I use to flash or reset a BK7231N device?

BK7231Flasher successfully wrote OpenBK in this case. If the device still fails after flashing, revisit your configuration or restore your Tuya backup to regain function. [Elektroda, Exkilla, post #20896988]

How should I configure NTP and energy stats on OpenBK for this device?

An example backlog sets NTP server 217.147.223.78, timezone offset 2, starts BL0942, then SetupEnergyStats 1 60 5. The 60 denotes a 60‑second energy statistics window. Adjust these to your region and reporting needs. [Elektroda, Exkilla, post #20896946]

Edge case: It boots but the UI seems dead. How can I confirm and fix it?

Connect to TX2 and check the console. If logs show normal boot, your pins likely reset. Reassign LED, button, and Bridge roles via console or web once reachable. The device should resume normal control. [Elektroda, Exkilla, post #20897368]