RFM69 In Wall Light Switch

  • I have been searching the forums for quite some time, but might be missing something as I am very new here. Has anyone developed in-wall mains powered light switch with an RFM69 radio? I am thinking of something similar to https://www.mysensors.org/hardware/ac-dc-ssd-relay but where I live the 2.4ghz frequency is extremely crowded. Another alternative I have considered (but know nothing about) is sending the communication down the powerline itself; is this a viable option?

    My end goal is to construct a bunch of light switch nodes within my home that can be controlled either by the standard North American switch already there, or remotely. Because I plan to make a bunch of these, I am trying to be very budget conscious. Along the same lines, is the RFM69 implementation within RPI reliable enough for this kind of application at this time? I noticed it is in the development branch.


  • Mod

    @Shaun-Storbakken Hi Shaun, and welcome to the forum!
    Here you can find an rfm69 in wall switch: https://www.openhardware.io/view/101/Wall-Socket-Insertable-Node
    And why do you say 2.4ghz band is very crowded? The nrf24 uses a much wider band than the overcrowded wifi band. You can probably use the high channels without WiFi interference.

  • Thanks for the quick reply! I didn't realize that NRF24 uses a wider band. Perhaps the link I mentioned in my first post is adequate. I am new to IOT and using the RF already supported might be more realistic.

    Thanks again!

  • Mod

    @Shaun-Storbakken rfm69 is also supported by the library 😉
    Pick the one that suits you best!

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