Skip to content
  • MySensors
  • OpenHardware.io
  • Categories
  • Recent
  • Tags
  • Popular
Skins
  • Light
  • Brite
  • Cerulean
  • Cosmo
  • Flatly
  • Journal
  • Litera
  • Lumen
  • Lux
  • Materia
  • Minty
  • Morph
  • Pulse
  • Sandstone
  • Simplex
  • Sketchy
  • Spacelab
  • United
  • Yeti
  • Zephyr
  • Dark
  • Cyborg
  • Darkly
  • Quartz
  • Slate
  • Solar
  • Superhero
  • Vapor

  • Default (No Skin)
  • No Skin
Collapse
Brand Logo
  1. Home
  2. Hardware
  3. AC Power and/or Relay interface

AC Power and/or Relay interface

Scheduled Pinned Locked Moved Hardware
41 Posts 6 Posters 8.9k Views 6 Watching
  • Oldest to Newest
  • Newest to Oldest
  • Most Votes
Reply
  • Reply as topic
Log in to reply
This topic has been deleted. Only users with topic management privileges can see it.
  • E exilit

    @gohan There is no problem. I like the devices very much, but I'd like to have something not WiFi based for that purpose.

    Why Z-Wave? Do you know a Z-Wave device, that serves low voltage output and is externally controllable?

    Black CatB Offline
    Black CatB Offline
    Black Cat
    wrote on last edited by
    #19

    @exilit what voltage are you needing?

    E 1 Reply Last reply
    0
    • Black CatB Black Cat

      @exilit what voltage are you needing?

      E Offline
      E Offline
      exilit
      wrote on last edited by
      #20

      @Black-Cat Ideally 5V or 3.3V. But in the end it doesn't matter too much, as converting it down wouldn't be too difficult. Do you know something?

      Black CatB 1 Reply Last reply
      0
      • E exilit

        @Black-Cat Ideally 5V or 3.3V. But in the end it doesn't matter too much, as converting it down wouldn't be too difficult. Do you know something?

        Black CatB Offline
        Black CatB Offline
        Black Cat
        wrote on last edited by
        #21

        @exilit For Z-Wave control the only device I am aware of that uses those voltages is a Z-UNO. You would need to build your own controller but it's not difficult.

        E gohanG 2 Replies Last reply
        0
        • Black CatB Black Cat

          @exilit For Z-Wave control the only device I am aware of that uses those voltages is a Z-UNO. You would need to build your own controller but it's not difficult.

          E Offline
          E Offline
          exilit
          wrote on last edited by
          #22

          @Black-Cat I'm a little bit confused. This does not address my issue, does it?

          Black CatB 1 Reply Last reply
          0
          • Black CatB Black Cat

            @exilit For Z-Wave control the only device I am aware of that uses those voltages is a Z-UNO. You would need to build your own controller but it's not difficult.

            gohanG Offline
            gohanG Offline
            gohan
            Mod
            wrote on last edited by
            #23

            @Black-Cat He is looking for an in-wall relay and a small power supply.

            1 Reply Last reply
            0
            • E exilit

              @Black-Cat I'm a little bit confused. This does not address my issue, does it?

              Black CatB Offline
              Black CatB Offline
              Black Cat
              wrote on last edited by
              #24

              @gohan the smallest PS that I know of that is enclosed is 62.55128mm (LWH)
              available in 3.3v, 5v DC
              https://www.meanwellaustralia.com.au/products/rs-15
              There should be local distributors in the required region.
              If the OP can do without an enclosed PS then there are smaller such as
              this step down shield.
              https://www.blackcatcontrolsystems.com.au/Chargers-Power Supplies-Connectors/Transformers/AC-DC Supply-240vAC-5VDC

              There are many different relay's on the market, googling will turn up something that fits the requirement.

              Sorry about the Z-Wave confusion.

              E 1 Reply Last reply
              0
              • rozpruwaczR Offline
                rozpruwaczR Offline
                rozpruwacz
                wrote on last edited by
                #25

                @Black-Cat said in AC Power and/or Relay interface:

                nfusion.

                RAC03-05SCR/277 is smaller

                1 Reply Last reply
                0
                • Black CatB Black Cat

                  @gohan the smallest PS that I know of that is enclosed is 62.55128mm (LWH)
                  available in 3.3v, 5v DC
                  https://www.meanwellaustralia.com.au/products/rs-15
                  There should be local distributors in the required region.
                  If the OP can do without an enclosed PS then there are smaller such as
                  this step down shield.
                  https://www.blackcatcontrolsystems.com.au/Chargers-Power Supplies-Connectors/Transformers/AC-DC Supply-240vAC-5VDC

                  There are many different relay's on the market, googling will turn up something that fits the requirement.

                  Sorry about the Z-Wave confusion.

                  E Offline
                  E Offline
                  exilit
                  wrote on last edited by
                  #26

                  @Black-Cat said in AC Power and/or Relay interface:

                  If the OP can do without an enclosed PS

                  I can do, but I am specifically looking for something that simplifies (in a sense of "assurance-safety") the whole High Voltage side. The products posted by you are really nice, but unfortunately do not address my request. :-)

                  Like I said before, I am aware, that the product I am searching for might not yet exist. (wondering why :confused: ) But maybe somebody has seen something like that.

                  gohanG 1 Reply Last reply
                  0
                  • E exilit

                    @Black-Cat said in AC Power and/or Relay interface:

                    If the OP can do without an enclosed PS

                    I can do, but I am specifically looking for something that simplifies (in a sense of "assurance-safety") the whole High Voltage side. The products posted by you are really nice, but unfortunately do not address my request. :-)

                    Like I said before, I am aware, that the product I am searching for might not yet exist. (wondering why :confused: ) But maybe somebody has seen something like that.

                    gohanG Offline
                    gohanG Offline
                    gohan
                    Mod
                    wrote on last edited by
                    #27

                    @exilit said in AC Power and/or Relay interface:

                    (wondering why )

                    I'd say because they don't want people mess with the product so they usually sell product with their own SW solution. It is like rooting a mobile phone, in case of problems you are out of warranty and in case something happens they are out of liability

                    E 1 Reply Last reply
                    0
                    • gohanG gohan

                      @exilit said in AC Power and/or Relay interface:

                      (wondering why )

                      I'd say because they don't want people mess with the product so they usually sell product with their own SW solution. It is like rooting a mobile phone, in case of problems you are out of warranty and in case something happens they are out of liability

                      E Offline
                      E Offline
                      exilit
                      wrote on last edited by exilit
                      #28

                      @gohan Well, for most companies you are probably right. But have a look at ITEAD with their Sonoff products... They are already quite open and also seem not to do a lot against people tinkering with it. They sell good products which are adoptable if needed/wanted. And people obviously like it and large communities originate from that which create even better products.
                      So I think there is a market for those products.

                      That's what I mean, I'd like to see products where I don't have to void the warranty because I don't need to open it.

                      I imagine something like the following:
                      0_1503486411101_Device.png

                      I think that would be awesome.

                      gohanG 1 Reply Last reply
                      0
                      • T Offline
                        T Offline
                        Toyman
                        wrote on last edited by
                        #29

                        For good AC-DC solution look at MeanWell and their IRM range, For example, IRM-05-5

                        1 Reply Last reply
                        0
                        • E exilit

                          @gohan Well, for most companies you are probably right. But have a look at ITEAD with their Sonoff products... They are already quite open and also seem not to do a lot against people tinkering with it. They sell good products which are adoptable if needed/wanted. And people obviously like it and large communities originate from that which create even better products.
                          So I think there is a market for those products.

                          That's what I mean, I'd like to see products where I don't have to void the warranty because I don't need to open it.

                          I imagine something like the following:
                          0_1503486411101_Device.png

                          I think that would be awesome.

                          gohanG Offline
                          gohanG Offline
                          gohan
                          Mod
                          wrote on last edited by
                          #30

                          @exilit also ITEAD has a warranty sticker that you need to break if you want to reflash the relay. Could be a good idea what you proposed, maybe you can start a kickstarter campaign :D

                          E 1 Reply Last reply
                          0
                          • B Offline
                            B Offline
                            Brian Morris
                            wrote on last edited by Brian Morris
                            #31

                            So I did this recently, I have two ESP8266 Wemos based switches and 2 MySensors based in production right now with more MySensors on the way. They encompass the following from AliExpress:

                            Arduino Pro Mini & NRF24L01
                            220/110V to 5V Transformer - https://www.aliexpress.com/item/Smart-Electronics-5V700mA-3-5W-Isolated-Switch-Power-Supply-Module-AC-DC-Buck-Step-down-Module/32529802796.html
                            WS2812B Single LED - https://www.aliexpress.com/item/10-100-pcs-WS2812B-LED-Individually-addressable-WS2811-IC-rgb-white-black-2812b-led-heatsink-10mm/32378187271.html
                            2 Small Tactile Buttons - https://www.aliexpress.com/item/100pcs-Tactile-Switch-Push-Button-Tactile-Pushbutton-4pin-DIP-6-6-10mm-for-LCD-Screen-Monitor/32693091694.html
                            Relay - https://www.aliexpress.com/item/Free-Shipping-10Pcs-5V-Low-Level-Trigger-One-1-Channel-Relay-Module-Interface-Board-Shield-for/32676400147.html
                            Dupont cables to make the switch and box separate. https://www.aliexpress.com/item/Free-shipping-Dupont-line-120pcs-20cm-male-to-male-male-to-female-and-female-to-female/32343840673.html

                            3D Printed Switch and Rear Box

                            I created a switch and the box that goes in the wall in TinkerCAD. On the switch side, there is a little WS2812B led which i use to show states, and a little startup sequence to know its up and connected to the MySensors gateway. There are two buttons both behind the switch, one is pressed by the switch itself, the other is a reset switch which connects ground to the reset pin. This is in case it needs to be reset or something. I did this 2 piece approach for being able to take off the wallplate, pull out the switch, connect up the FTDI adapter and upload new code in the case of the MySensors nodes. For the ESP8266, those are OTA.

                            I am printing the latest version of the box and switch now, I will upload pics when they are done.

                            Here is the one in my garage, white means light is off (so you can find it in the dark), green is on. There is a red light coming from behind the switch which is the relay light, I dont care much in the garage so you can see it. On the inside ones, I used a small piece of heat shrink to cover it. Also, the pictures just do not do it justice at all, the light blurs out the camera and you cannot see the switch very well nor the power icon behind the LED.

                            off
                            on

                            E 1 Reply Last reply
                            0
                            • gohanG gohan

                              @exilit also ITEAD has a warranty sticker that you need to break if you want to reflash the relay. Could be a good idea what you proposed, maybe you can start a kickstarter campaign :D

                              E Offline
                              E Offline
                              exilit
                              wrote on last edited by
                              #32

                              @gohan said in AC Power and/or Relay interface:

                              maybe you can start a kickstarter campaign

                              I did not thought about that, but that sounds like a good idea :simple_smile:. Maybe it's worth thinking about it.

                              1 Reply Last reply
                              0
                              • B Brian Morris

                                So I did this recently, I have two ESP8266 Wemos based switches and 2 MySensors based in production right now with more MySensors on the way. They encompass the following from AliExpress:

                                Arduino Pro Mini & NRF24L01
                                220/110V to 5V Transformer - https://www.aliexpress.com/item/Smart-Electronics-5V700mA-3-5W-Isolated-Switch-Power-Supply-Module-AC-DC-Buck-Step-down-Module/32529802796.html
                                WS2812B Single LED - https://www.aliexpress.com/item/10-100-pcs-WS2812B-LED-Individually-addressable-WS2811-IC-rgb-white-black-2812b-led-heatsink-10mm/32378187271.html
                                2 Small Tactile Buttons - https://www.aliexpress.com/item/100pcs-Tactile-Switch-Push-Button-Tactile-Pushbutton-4pin-DIP-6-6-10mm-for-LCD-Screen-Monitor/32693091694.html
                                Relay - https://www.aliexpress.com/item/Free-Shipping-10Pcs-5V-Low-Level-Trigger-One-1-Channel-Relay-Module-Interface-Board-Shield-for/32676400147.html
                                Dupont cables to make the switch and box separate. https://www.aliexpress.com/item/Free-shipping-Dupont-line-120pcs-20cm-male-to-male-male-to-female-and-female-to-female/32343840673.html

                                3D Printed Switch and Rear Box

                                I created a switch and the box that goes in the wall in TinkerCAD. On the switch side, there is a little WS2812B led which i use to show states, and a little startup sequence to know its up and connected to the MySensors gateway. There are two buttons both behind the switch, one is pressed by the switch itself, the other is a reset switch which connects ground to the reset pin. This is in case it needs to be reset or something. I did this 2 piece approach for being able to take off the wallplate, pull out the switch, connect up the FTDI adapter and upload new code in the case of the MySensors nodes. For the ESP8266, those are OTA.

                                I am printing the latest version of the box and switch now, I will upload pics when they are done.

                                Here is the one in my garage, white means light is off (so you can find it in the dark), green is on. There is a red light coming from behind the switch which is the relay light, I dont care much in the garage so you can see it. On the inside ones, I used a small piece of heat shrink to cover it. Also, the pictures just do not do it justice at all, the light blurs out the camera and you cannot see the switch very well nor the power icon behind the LED.

                                off
                                on

                                E Offline
                                E Offline
                                exilit
                                wrote on last edited by
                                #33

                                @Brian-Morris Great project, looks good. But I think also not what I am looking for.

                                1 Reply Last reply
                                0
                                • B Offline
                                  B Offline
                                  Brian Morris
                                  wrote on last edited by
                                  #34

                                  Np. I saw the "I am looking for a way to put an MySensors Relay actuator behind a wall switch." description. My project is a switch and relay in 1. Are you talking about just putting a MySensors node with a relay behind a working normal light switch?

                                  E 1 Reply Last reply
                                  0
                                  • B Offline
                                    B Offline
                                    Brian Morris
                                    wrote on last edited by
                                    #35

                                    Adding the imgur album. https://imgur.com/a/XNz79

                                    1 Reply Last reply
                                    0
                                    • B Brian Morris

                                      Np. I saw the "I am looking for a way to put an MySensors Relay actuator behind a wall switch." description. My project is a switch and relay in 1. Are you talking about just putting a MySensors node with a relay behind a working normal light switch?

                                      E Offline
                                      E Offline
                                      exilit
                                      wrote on last edited by
                                      #36

                                      @Brian-Morris i Think wat i am really looking for is a tinkering-friendly Device that can deliver some low voltage power as well as a possibility to switch higher voltage devices.

                                      The point is that - as far as I know - tinkering with low voltage is uncritical (with respect to assurances and power providers) but everything related to mains power needs to be certified and/or should only be installed by people qualified to do so. So what I would like to see is a device that can be controlled easily and at the same time is safe to use.

                                      Black CatB 1 Reply Last reply
                                      0
                                      • E exilit

                                        @Brian-Morris i Think wat i am really looking for is a tinkering-friendly Device that can deliver some low voltage power as well as a possibility to switch higher voltage devices.

                                        The point is that - as far as I know - tinkering with low voltage is uncritical (with respect to assurances and power providers) but everything related to mains power needs to be certified and/or should only be installed by people qualified to do so. So what I would like to see is a device that can be controlled easily and at the same time is safe to use.

                                        Black CatB Offline
                                        Black CatB Offline
                                        Black Cat
                                        wrote on last edited by
                                        #37

                                        @exilit said in AC Power and/or Relay interface:

                                        @Brian-Morris i Think wat i am really looking for is a tinkering-friendly Device that can deliver some low voltage power as well as a possibility to switch higher voltage devices.

                                        The point is that - as far as I know - tinkering with low voltage is uncritical (with respect to assurances and power providers) but everything related to mains power needs to be certified and/or should only be installed by people qualified to do so. So what I would like to see is a device that can be controlled easily and at the same time is safe to use.

                                        LV is a voltage above 110VAC or 50VDC, this is the critical test.
                                        Below 110VAC or 50VDC it is ELV and does not require the mandatory testing.
                                        For a device as suggested to be made, it would need to undergo testing, then further reporting and certification in many different world wide regions before it could be sold on the market.
                                        It is a very expensive and time consuming effort (been there and done that)-I doubt that any money could be made on developing a device such as this (it's still a good idea, don't get me wrong, but I doubt it has a commercial application otherwise it would have been made.)
                                        The least expensive way of controlling Line Voltages remotely that I would use is to use a Z-Wave device. Depending on the region you are located this will cost you between 40-maybe 85 local currency units. Use OpenHab as your controller software then you have control from your sensors and Z-wave control of your Power relays.
                                        Problem solved.

                                        E 1 Reply Last reply
                                        0
                                        • Black CatB Black Cat

                                          @exilit said in AC Power and/or Relay interface:

                                          @Brian-Morris i Think wat i am really looking for is a tinkering-friendly Device that can deliver some low voltage power as well as a possibility to switch higher voltage devices.

                                          The point is that - as far as I know - tinkering with low voltage is uncritical (with respect to assurances and power providers) but everything related to mains power needs to be certified and/or should only be installed by people qualified to do so. So what I would like to see is a device that can be controlled easily and at the same time is safe to use.

                                          LV is a voltage above 110VAC or 50VDC, this is the critical test.
                                          Below 110VAC or 50VDC it is ELV and does not require the mandatory testing.
                                          For a device as suggested to be made, it would need to undergo testing, then further reporting and certification in many different world wide regions before it could be sold on the market.
                                          It is a very expensive and time consuming effort (been there and done that)-I doubt that any money could be made on developing a device such as this (it's still a good idea, don't get me wrong, but I doubt it has a commercial application otherwise it would have been made.)
                                          The least expensive way of controlling Line Voltages remotely that I would use is to use a Z-Wave device. Depending on the region you are located this will cost you between 40-maybe 85 local currency units. Use OpenHab as your controller software then you have control from your sensors and Z-wave control of your Power relays.
                                          Problem solved.

                                          E Offline
                                          E Offline
                                          exilit
                                          wrote on last edited by exilit
                                          #38

                                          @Black-Cat Thank you for your input, I really appreciate it. Sounds like you have some experience with the whole topic of certification. Apart from being time consuming and expensive, do you think it would be possible to certify a device that allows to switch LV (Low Vortages?) by exposing an ELV (extra Low Vortage?) Interface?
                                          Or does any Device interfering with the LV device have to be certified also?

                                          Black CatB 1 Reply Last reply
                                          0
                                          Reply
                                          • Reply as topic
                                          Log in to reply
                                          • Oldest to Newest
                                          • Newest to Oldest
                                          • Most Votes


                                          12

                                          Online

                                          11.7k

                                          Users

                                          11.2k

                                          Topics

                                          113.1k

                                          Posts


                                          Copyright 2025 TBD   |   Forum Guidelines   |   Privacy Policy   |   Terms of Service
                                          • Login

                                          • Don't have an account? Register

                                          • Login or register to search.
                                          • First post
                                            Last post
                                          0
                                          • MySensors
                                          • OpenHardware.io
                                          • Categories
                                          • Recent
                                          • Tags
                                          • Popular