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BL602 WiFi Smart Switch: KR2302 Teardown, Pin Definitions & OpenBeken Compatibility

billdengy 3846 8
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  • #1 20453818
    billdengy
    Level 4  
    Hi guys, I have a couple of new WiFi Smart Switches, not exactly the same as the existing ones in the forum, its cpu is BL602, glad to still be able to use OpenBeken, the basic structure below
    pin definition：
    relay：3
    LED: 20
    Button: 22
    Hope it helps you
    BL602 WiFi Smart Switch: KR2302 Teardown, Pin Definitions & OpenBeken Compatibility BL602 WiFi Smart Switch: KR2302 Teardown, Pin Definitions & OpenBeken Compatibility BL602 WiFi Smart Switch: KR2302 Teardown, Pin Definitions & OpenBeken Compatibility BL602 WiFi Smart Switch: KR2302 Teardown, Pin Definitions & OpenBeken Compatibility BL602 WiFi Smart Switch: KR2302 Teardown, Pin Definitions & OpenBeken Compatibility BL602 WiFi Smart Switch: KR2302 Teardown, Pin Definitions & OpenBeken Compatibility
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  • #2 20454185
    p.kaczmarek2
    Moderator Smart Home  
    Thanks, that's interesting, I haven't seen such BL602 switch yet. It seems that our BL602 flashing tutorials will be useful for people.
    https://www.youtube.com/watch?v=L6d42IMGhHw&ab_channel=Elektrodacom
    Helpful post? Buy me a coffee.
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  • #3 20455388
    billdengy
    Level 4  
    Yes, it is the same as the flashing method you provided, thank you very much for providing a super powerful firmware, let us have more fun
  • #4 20455482
    p.kaczmarek2
    Moderator Smart Home  
    We have two next BL602 videos almost ready, one showing how to add a button that controls power, brightness and color to BL602 strip, and a BL602 strip flashing, please subscribe so you don't miss them:
    https://www.youtube.com/@elektrodacom
    Helpful post? Buy me a coffee.
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  • #5 20709482
    mmsdh
    Level 2  
    Hello. Could you share with us how you removed the relay to gain access to the pins?

    Thank you very much.
  • #6 20709876
    p.kaczmarek2
    Moderator Smart Home  
    I think it should be very easy if you use some extra flux, add some extra Pb solder to the existing pads and then remove all the solder with soldering wick. Do you have equipment to do it?
    Helpful post? Buy me a coffee.
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  • #7 20710179
    mmsdh
    Level 2  

    I did it!

    Thank you very much.

    Flashed successfully.
  • #8 20716466
    mmsdh
    Level 2  

    Which pin is TglChanOnTgl?

    Added after 14 [minutes]:

    Replying to myself!

    By trial and error, it is P2.

    I hope this is useful.

    The full pin assignment is therefore:

    Code: JSON
    Log in, to see the code

  • #9 20716512
    p.kaczmarek2
    Moderator Smart Home  
    Thank you, device has been added to our teardowns list:
    https://github.com/OpenBekenIOT/webapp/commit/5b0cfa5f8f23df8d60072f9ed832b719a1f5ac62
    See full list:
    https://openbekeniot.github.io/webapp/devicesList.html
    Helpful post? Buy me a coffee.
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Topic summary

The discussion centers around the BL602 WiFi Smart Switch, specifically the KR2302 model, detailing its pin definitions and compatibility with OpenBeken firmware. Users share insights on flashing the device, with one member providing a complete pin assignment: P2 for TglChanOnTgl, P3 for Relay, P20 for LED, and P22 for Button. Additional resources, including video tutorials and a teardown list, are shared to assist others in the community. Techniques for accessing the relay pins are also discussed, emphasizing the use of flux and soldering tools for successful modifications.
Summary generated by the language model.
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