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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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  • 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
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      • 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
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        • 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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