Sonoff RF Bridge - US $8.79 (~AU $13.21) Delivered @ Banggood

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geek001 on 26/08/2019 - 17:15 banggood.com (306 clicks)
Last edited 27/08/2019 - 09:07 by 1 other user

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Pretty good price, probably because it can be quite an effort to get it going with Home Assistant.

If you have a lot of 433Mhz devices lying around because they are obsolete, you can probably re-purpose them with this bridge.

I got this alarm system a while back. https://www.ozbargain.com.au/node/219654 Not the best, but found that I can "pair" the PIR sensors with this bridge.

Also, note that this bridge can only receive, not transmit.

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  Niko69 on 26/08/2019 - 17:28

  Hi geek001 why do you think the 433 stuff is obsolete? I run a couple of 4 channel pros and use 433 switches as a backup to Google home.

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    geek001 on 26/08/2019 - 18:02

    No. I do not think 433 stuff is obsolete. But 433mhz devices has been around for a long time. Some 433mhz systems are discarded because they cannot go online or be connected to an app. This rf bridge will enable us to reuse the switches or sensors from obsolete 433mhz systems.

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  shortcircuit on 26/08/2019 - 17:41

  will it work with rolling code garage door remote?

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    shortcircuit on 26/08/2019 - 17:44

    don't worry about my question. it will not support it

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    peuwayaqdq on 26/08/2019 - 17:48

    What do you mean with rolling code? I am wondering myself if this will work with garage door that is currently controlled by Merlin blue remote.

    • 

      shortcircuit on 26/08/2019 - 18:52

      garage door remote sending code that keep changing and sync with the receiver. for security purpose. so it's hard to clone the signal.

      • 

        klaw81 on 27/08/2019 - 07:17

        +2

        You don't clone the signal, it's too hard (because it's secure). Instead, you add an additional trigger. Most garage doors have the capability to add a wired remote (push button) and you can use this input to operate the door instead.

        A simple Wifi-connected relay with an inching function is perfect: https://www.banggood.com/5V-WiFi-Remote-Garage-Door-Opener-C…

        The relay can simulate a wired remote button; usually a momentary ground of the wire is required. No need to mess with high voltage cables or anything. You can even hook it up to Google Assistant or Alexa.

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  xitrapharlax on 26/08/2019 - 17:50

  +2

  Why do you say it can only receive? I've got this with home assistant and can transmit to my power sockets.

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    geek001 on 26/08/2019 - 18:03

    Oh. Good on you. How do you do set it up?

    • 

      djshitu on 26/08/2019 - 19:48

      +1

      I followed this link.

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  iShibby on 26/08/2019 - 20:51

  Ooh are my ALDI Ceiling fans 433? Hmmm

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    geek001 on 27/08/2019 - 11:27

    +2

    Check the specs of your ceiling fan/remote. If the frequency is 433.92mhz or thereabouts, it should work. 433Mhz device frequency can vary depending on which part of the world the fans actually came from. https://en.wikipedia.org/wiki/LPD433

    Otherwise, it will only cost you less than $14 to find out.

    • 

      iShibby on 27/08/2019 - 11:29

      Apparently they are. Next question is how to automate it with my Google Home mini. Not sure how difficult that is.

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        klaw81 on 27/08/2019 - 12:48

        +1

        Should be pretty easy.

        You program the entire thing in eWeLink (Sonoff's Android/iOS app) by training it to recognize the signals from your fan remotes.

        Once you can control everything, link your eWeLink account with Google Assistant, and your devices will show up where you can control them via voice (via phone and Home devices) or the Google Home app.

        Note that if you make changes to the eWeLink programming, those changes won't be synced automatically with Google Assistant. Use the voice command "sync devices" to update.

        • 

          iShibby on 27/08/2019 - 13:03

          @klaw81: Thanks grabbed one..

          Cheers OP

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  r0nmac on 27/08/2019 - 11:16

  I got a houseful of ceiling fans.. Great time for these.

  How do these compare to Broadlink ?

  • 

    geek001 on 27/08/2019 - 11:31

    Depends on what you are planning to do with it. Home Assistant support for Broadlink devices are well documented, and do not require flashing. Sonoff devices needs to be flashed to work with Home Assistant.

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    klaw81 on 27/08/2019 - 12:55

    Broadlink has a similar range of products and capabilities, but seems to rely heavily on RF and/or IR signals for their gear. Then you need a hub (like the Broadlink Pro or Black Bean) to control the devices from a phone or via voice.

    In contrast, nearly all of Sonoff's devices have native WiFi connectivity, and connect directly to a cloud service without a hub device. This "bridge" device is intended to provide a link to remote sensors that use little power, and can therefore be powered by internal batteries and communicate over RF, such as motion sensors and reed switches.