I have recently bought a 2 gang wifi single phase clamp. model QS-wifi-S10-CT02 It is based on a CB2S and used for monitoring power without disconnecting (via clamp) I was wondering if there is a flash instruction for new firmware that disconnects from internet? AI: Do you have a specific...

Well, that's a device using BL0942 for power metering, right? I think you can just flash it easily with our flasher: Do you have any specific questions? Flasher should discover GPIO config automatically.

I think it does. But doesn't it matter that there are only clamps? Or is that just a calibration I have to perform?

used the flasher from your link.all looks fine. I can't access device via 192.168.4.1, I cannot find the APWhat did I do wrong?

BL0942 is communicating with WiFi module via UART, so it does not matter that there is a current transformer on BL0942 side. Did you do full power off and on cycle?

>>21612049 Yes I did full power cycle but still no AP

QS-wifi-S10-CT02 (CB2S) Flashing Guide for Offline Firmware Installation

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#1 21611185 19 Jul 2025 17:40

jannie_doedel jannie_doedel

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Post #1
21611185 19 Jul 2025 17:40

I have recently bought a "2 gang wifi single phase clamp".
model QS-wifi-S10-CT02
It is based on a CB2S and used for monitoring power without disconnecting (via clamp)
I was wondering if there is a flash instruction for new firmware that disconnects from internet?
AI: Do you have a specific firmware in mind that you want to flash onto the QS-wifi-S10-CT02, like Tasmota, ESPHome, or something else?
tasmota
AI: Are you able to access the device's hardware for flashing (like using serial pins), or are you looking for a way to flash the firmware over the air (OTA)?
yes

Attachments:

QS-wifi-S10-CT02_2.png Download (2.72 MB)

QS-wifi-S10-CT02_3.png Download (2.94 MB)

QS-wifi-S10-CT02_4.png Download (7.54 MB)

QS-wifi-S10-CT02_1.png Download (2.33 MB)
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#2 21611268 19 Jul 2025 19:34

p.kaczmarek2 p.kaczmarek2

Moderator Smart Home

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Post #2
21611268 19 Jul 2025 19:34

Well, that's a device using BL0942 for power metering, right? I think you can just flash it easily with our flasher:
https://github.com/openshwprojects/BK7231GUIFlashTool
Do you have any specific questions? Flasher should discover GPIO config automatically.

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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#3 21611332 19 Jul 2025 20:59

jannie_doedel jannie_doedel

Level 2

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Post #3
21611332 19 Jul 2025 20:59

[postid:b1eceb341b][/postid:b1eceb341b]
I think it does. But doesn't it matter that there are only clamps? Or is that just a calibration I have to perform?
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#4 21611845 20 Jul 2025 15:50

jannie_doedel jannie_doedel

Level 2

Topic author Helpful post? (0)

Post #4
21611845 20 Jul 2025 15:50

used the flasher from your link.
all looks fine. I can't access device via 192.168.4.1, I cannot find the AP
What did I do wrong?
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#5 21612049 20 Jul 2025 19:41

p.kaczmarek2 p.kaczmarek2

Moderator Smart Home

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Post #5
21612049 20 Jul 2025 19:41

BL0942 is communicating with WiFi module via UART, so it does not matter that there is a current transformer on BL0942 side.

Did you do full power off and on cycle?

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.
#6 21613761 22 Jul 2025 16:31

jannie_doedel jannie_doedel

Level 2

Topic author Helpful post? (0)

Post #6
21613761 22 Jul 2025 16:31

>>21612049 Yes I did full power cycle but still no AP
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QS-wifi-S10-CT02 (CB2S) Flashing Guide for Offline Firmware Installation

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