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  1. Home
  2. Troubleshooting
  3. Node's becoming unreachable

Node's becoming unreachable

Scheduled Pinned Locked Moved Troubleshooting
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  • Sander StolkS Sander Stolk

    @hek I will start debugging today when I'm at home from this node.

    sundberg84S Offline
    sundberg84S Offline
    sundberg84
    Hardware Contributor
    wrote on last edited by sundberg84
    #16

    @Sander-Stolk - Maybe you can try a metalic/aluminium case? I have seen much better performance of my network since i change GW and repeaters to a aluminium case.

    Controller: Proxmox VM - Home Assistant
    MySensors GW: Arduino Uno - W5100 Ethernet, Gw Shield Nrf24l01+ 2,4Ghz
    MySensors GW: Arduino Uno - Gw Shield RFM69, 433mhz
    RFLink GW - Arduino Mega + RFLink Shield, 433mhz

    Sander StolkS 1 Reply Last reply
    1
    • Sander StolkS Offline
      Sander StolkS Offline
      Sander Stolk
      wrote on last edited by Sander Stolk
      #17

      Ok! So I found some issues but not fixed completely...

      What I found out is that my Shed node is sending through my attic-node. Why? I dont know but parent was 1 and distance 2.
      After a Clear EEPROM on the Shed-node and disconnected the Attic-node, re'-uploaded the original sketch and voila a few Find parents and Fails but then I saw 4-4-0-0 instead of 4-4-1-0.
      So that was one problem fixed. The attic-node was not isolated with foil so now most of the time the Shed-node is sending OK and not so many Fails.
      I've ordered a new type of radio with a shield and a external antenna as some may know from the comparison video of the NRF24's on youtube.

      Is there a way to make the parent (0) static to prevent node's from seeking and broadcasting?
      So that I can force my Shed-node to always contact the parent 0 instead of roaming towards the strongest link.
      I know that I can redirect node's to use a specific repeater node but not a parent node.

      So far this update. When the kids are not in sleeping I will check their node's to find out if there is something wrong.

      Keep you all posted!

      sundberg84S 1 Reply Last reply
      0
      • Sander StolkS Offline
        Sander StolkS Offline
        Sander Stolk
        wrote on last edited by
        #18

        To be sure that the radio is not interrupted or failing in any other way because the lack of power, I've connected the radio with a voltage regulator so 5v in and 3.3 volt out with CAP.
        It helped a little but not much hence the order of a new radio for the Shed which is isolated.
        This is the one to test: http://www.icstation.com/22dbm-100mw-nrf24l01ppalna-wireless-transmission-module-p-4677.html

        karl261K 1 Reply Last reply
        0
        • sundberg84S sundberg84

          @Sander-Stolk - Maybe you can try a metalic/aluminium case? I have seen much better performance of my network since i change GW and repeaters to a aluminium case.

          Sander StolkS Offline
          Sander StolkS Offline
          Sander Stolk
          wrote on last edited by
          #19

          @sundberg84 said:

          @Sander-Stolk - Maybe you can try a metalic/aluminium case? I have seen much better performance of my network since i change GW and repeaters to a aluminium case.

          @Sander-Stolk said:

          This is the one to test: http://www.icstation.com/22dbm-100mw-nrf24l01ppalna-wireless-transmission-module-p-4677.html

          I'm checking these out to see if I can fix the radio problem once and for all

          1 Reply Last reply
          0
          • Sander StolkS Sander Stolk

            To be sure that the radio is not interrupted or failing in any other way because the lack of power, I've connected the radio with a voltage regulator so 5v in and 3.3 volt out with CAP.
            It helped a little but not much hence the order of a new radio for the Shed which is isolated.
            This is the one to test: http://www.icstation.com/22dbm-100mw-nrf24l01ppalna-wireless-transmission-module-p-4677.html

            karl261K Offline
            karl261K Offline
            karl261
            wrote on last edited by karl261
            #20

            @Sander-Stolk said:

            This is the one to test: http://www.icstation.com/22dbm-100mw-nrf24l01ppalna-wireless-transmission-module-p-4677.html

            Looking at the module I see that the shield is NOT touching the ground of the antenna. Is that correct? Or is it connected all together on the back side of the module?

            This is also what I thought to see in my own experiments, that it was better when the Al foil was not touching the gnd of the antenna.

            Still my shielding is imperfect. It does not work at MAX setting.

            Looking at the proposed module I see that really everything is covered by the shield. I will try to enlarge my foil wrapping, but not touching the gnd.

            Hmmmm, guess I will have to do more tests. There are various opinions here about toching the ground with the foil or not.

            1 Reply Last reply
            0
            • AWIA Offline
              AWIA Offline
              AWI
              Hero Member
              wrote on last edited by
              #21

              I don't have a good experience with the shielded radio's. Also with these there are many variations. The shielding of the 3 (different) shielded nodes I have is grounded. Which is what it should be.
              Much has been written about it on this forum I.e

              karl261K 1 Reply Last reply
              1
              • Sander StolkS Offline
                Sander StolkS Offline
                Sander Stolk
                wrote on last edited by
                #22

                I think I have to replace the shed-node. This Arduino Mega just stops in its loops and last night it just hangs. No more fast blinking led.
                Will convert it to a Nano but have to figure out how because of the many childs.

                1 Reply Last reply
                0
                • Sander StolkS Sander Stolk

                  Ok! So I found some issues but not fixed completely...

                  What I found out is that my Shed node is sending through my attic-node. Why? I dont know but parent was 1 and distance 2.
                  After a Clear EEPROM on the Shed-node and disconnected the Attic-node, re'-uploaded the original sketch and voila a few Find parents and Fails but then I saw 4-4-0-0 instead of 4-4-1-0.
                  So that was one problem fixed. The attic-node was not isolated with foil so now most of the time the Shed-node is sending OK and not so many Fails.
                  I've ordered a new type of radio with a shield and a external antenna as some may know from the comparison video of the NRF24's on youtube.

                  Is there a way to make the parent (0) static to prevent node's from seeking and broadcasting?
                  So that I can force my Shed-node to always contact the parent 0 instead of roaming towards the strongest link.
                  I know that I can redirect node's to use a specific repeater node but not a parent node.

                  So far this update. When the kids are not in sleeping I will check their node's to find out if there is something wrong.

                  Keep you all posted!

                  sundberg84S Offline
                  sundberg84S Offline
                  sundberg84
                  Hardware Contributor
                  wrote on last edited by sundberg84
                  #23

                  @Sander-Stolk said:

                  Is there a way to make the parent (0) static to prevent node's from seeking and broadcasting?

                  #define MY_PARENT_NODE_ID 0 (For 2.0.0)

                  Controller: Proxmox VM - Home Assistant
                  MySensors GW: Arduino Uno - W5100 Ethernet, Gw Shield Nrf24l01+ 2,4Ghz
                  MySensors GW: Arduino Uno - Gw Shield RFM69, 433mhz
                  RFLink GW - Arduino Mega + RFLink Shield, 433mhz

                  1 Reply Last reply
                  1
                  • AWIA AWI

                    I don't have a good experience with the shielded radio's. Also with these there are many variations. The shielding of the 3 (different) shielded nodes I have is grounded. Which is what it should be.
                    Much has been written about it on this forum I.e

                    karl261K Offline
                    karl261K Offline
                    karl261
                    wrote on last edited by
                    #24

                    @AWI ok, I guess you are right. I will do some more tests with grounded foil.

                    Actually I have some really nice and thick Al metal. I could use it to build some better permanent shielding of the module.

                    Actually I would like to give my repeater a metal enclosure. But it is built in a way that inside its case the 220 V are converted to 5 V. So I prefer the plastic case. I am too afraid that by some stupid failure there are 220 V on the case and somebody touching it. Hm, so maybe I should rebuilt the repeater with an external 5 V supply and a metal case.

                    I am totally sick of these NRFs that all perform differently. 😉

                    Alex PopovskiyA 1 Reply Last reply
                    0
                    • karl261K karl261

                      @AWI ok, I guess you are right. I will do some more tests with grounded foil.

                      Actually I have some really nice and thick Al metal. I could use it to build some better permanent shielding of the module.

                      Actually I would like to give my repeater a metal enclosure. But it is built in a way that inside its case the 220 V are converted to 5 V. So I prefer the plastic case. I am too afraid that by some stupid failure there are 220 V on the case and somebody touching it. Hm, so maybe I should rebuilt the repeater with an external 5 V supply and a metal case.

                      I am totally sick of these NRFs that all perform differently. 😉

                      Alex PopovskiyA Offline
                      Alex PopovskiyA Offline
                      Alex Popovskiy
                      wrote on last edited by
                      #25

                      @karl261 said:

                      I am totally sick of these NRFs that all perform differently. 😉

                      Same here! So I radically solved my problems with connectivity by moving to rfm69 radios. It took some time and effort to make 'adaptor' pcbs to connect rfm's to my existing nodes, especially for 5v nodes, as rfm's are not 5v tolerant and require voltage level converter. I don't have comprehensive statistics for now (finished switching only a few days ago), but even first tests gave stable communication range far beyond that I ever saw with nrf's

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