Hello, I bought this Mini Smart Socket, which works with eWeLink, not Tuya. I successfully updated the firmware to OpenBL602. But the socket also needs to measure power. How can I find out which PINs are used for power? Maybe someone can help? Ed

Hello, in case of BL602 we don't have automatic GPIO extraction yet, so you have to just look at the PCB and check the tracks with multimeter. How does your PCB look like? What kind of power measuring chip is used there?

Hello,Unfortunately, I don't have a multimeter at home. I assume it's a standard BL chip. I can send the original firmware to you.Ed

Hello @bl00dy, then maybe let's check the PCB? Make some more detailed photos? Maybe we will be able to tell from that which pin are used.

Identifying Power Measurement Pins on RMC021 with BL602 Chip and SM-028_V1.3 Board

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#1 20781399 22 Oct 2023 23:48

bl00dy bl00dy

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Post #1
20781399 22 Oct 2023 23:48

Hello,

I bought this "Mini Smart Socket", which works with eWeLink, not Tuya.
I successfully updated the firmware to OpenBL602.

Code: JSON
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But the socket also needs to measure power. How can I find out which PINs are used for power? Maybe someone can help?

Ed
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#2 20783993 24 Oct 2023 20:16

p.kaczmarek2 p.kaczmarek2

Moderator Smart Home

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Post #2
20783993 24 Oct 2023 20:16

Hello, in case of BL602 we don't have automatic GPIO extraction yet, so you have to just look at the PCB and check the tracks with multimeter. How does your PCB look like? What kind of power measuring chip is used there?

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

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#3 20785033 25 Oct 2023 16:00

bl00dy bl00dy

Level 5

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Post #3
20785033 25 Oct 2023 16:00

Hello,

Unfortunately, I don't have a multimeter at home. I assume it's a standard BL chip. I can send the original firmware to you.

Ed
#4 20785583 25 Oct 2023 21:13

p.kaczmarek2 p.kaczmarek2

Moderator Smart Home

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Post #4
20785583 25 Oct 2023 21:13

Hello @bl00dy, then maybe let's check the PCB? Make some more detailed photos? Maybe we will be able to tell from that which pin are used.

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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Identifying Power Measurement Pins on RMC021 with BL602 Chip and SM-028_V1.3 Board

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