Hi folks. I have a smart switch successfully flashed with OpenBeken. Any way to hack this switch to make it dry contact for L-out and N-out, instead of getting 220 v on it? Thank you, much appreciated for any help.

You cannot do without cutting tracks on the board. You need to cut off the 230V AC supply from the relay contact (it is hard to see in the photos) and lead (preferably with wires) the contact output outside the device. I did this with similar Tuy WIFI relays (the ones with a potential-free contact were 2x more expensive). Greetings. J.

>>21484448 Thanks for your tips, I saw the similar post here, but with completely different PCB. Finally managed to figure out to solve my problem. Maybe someone will have the same device like mine, I will post final results here

Please check above how I solved my problem. Thanks

[Solved] Converting OpenBeken Smart Switch to Dry Contact for L-out and N-out

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#1 21484133 17 Mar 2025 19:27

flyzet flyzet

Level 8

Post #1
21484133 17 Mar 2025 19:27

Hi folks. I have a smart switch successfully flashed with OpenBeken. Any way to hack this switch to make it dry contact for L-out and N-out, instead of getting 220 v on it? Thank you, much appreciated for any help.
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#2 21484448 17 Mar 2025 22:18

adamjur1 adamjur1

Level 41

» | Helpful post? (0)

Post #2
21484448 17 Mar 2025 22:18

You cannot do without cutting tracks on the board. You need to cut off the 230V AC supply from the relay contact (it is hard to see in the photos) and lead (preferably with wires) the contact output outside the device. I did this with similar Tuy WIFI relays (the ones with a potential-free contact were 2x more expensive).
Greetings. J.
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#3 21485297 18 Mar 2025 16:51

flyzet flyzet

Level 8

Topic author Helpful post? (0)

Post #3
21485297 18 Mar 2025 16:51

>>21484448

Thanks for your tips, I saw the similar post here, but with completely different PCB. Finally managed to figure out to solve my problem. Maybe someone will have the same device like mine, I will post final results here
#4 21485301 18 Mar 2025 16:52

flyzet flyzet

Level 8

Topic author Helpful post? (0)

Post #4
21485301 18 Mar 2025 16:52

Please check above how I solved my problem. Thanks
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[Solved] Converting OpenBeken Smart Switch to Dry Contact for L-out and N-out

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