New V3 Node failed

MarcKCity · October 15, 2021, 6:20pm

UPDATE:

I found this website: Mobilefish.com - Build Lora node using Arduino Pro Mini and HopeRF RFM95 LoRa transceiver module (V3).

and use the infos for the problem with the Arduino pro mini 3,3v and no I get this in the ice console ( see picture). but why no join accept? nojoin

bertrik · October 15, 2021, 9:20pm

Just analyse things step-by-step, there could be any number of things wrong.
So do you see your join-request in the console of the gateway?
First make sure you see your join request in the gateway console, then make sure you see a join accept being sent out by the gateway, then see if you can receive it on the node.

The event codes for LMIC are here:

github.com

mcci-catena/arduino-lmic/blob/master/src/lmic/lmic.h#L285

    
      
          enum { TXRX_ACK    = 0x80,   // confirmed UP frame was acked
                 TXRX_NACK   = 0x40,   // confirmed UP frame was not acked
                 TXRX_NOPORT = 0x20,   // set if a frame with a port was RXed, clr if no frame/no port
                 TXRX_PORT   = 0x10,   // set if a frame with a port was RXed, LMIC.frame[LMIC.dataBeg-1] => port
                 TXRX_LENERR = 0x08,   // set if frame was discarded due to length error.
                 TXRX_PING   = 0x04,   // received in a scheduled RX slot
                 TXRX_DNW2   = 0x02,   // received in 2dn DN slot
                 TXRX_DNW1   = 0x01,   // received in 1st DN slot
          };
          
          
// Event types for event callback
          enum _ev_t { EV_SCAN_TIMEOUT=1, EV_BEACON_FOUND,
                       EV_BEACON_MISSED, EV_BEACON_TRACKED, EV_JOINING,
                       EV_JOINED, EV_RFU1, EV_JOIN_FAILED, EV_REJOIN_FAILED,
                       EV_TXCOMPLETE, EV_LOST_TSYNC, EV_RESET,
                       EV_RXCOMPLETE, EV_LINK_DEAD, EV_LINK_ALIVE, EV_SCAN_FOUND,
                       EV_TXSTART, EV_TXCANCELED, EV_RXSTART, EV_JOIN_TXCOMPLETE };
          typedef enum _ev_t ev_t;
          
          
// this macro can be used to initalize a normal table of event strings
          #define LMIC_EVENT_NAME_TABLE__INIT                                         \

Number 20 is EV_JOIN_TXCOMPLETE, which means that the node claims it sent a JOIN accept.

On an atmel, things are quite tight with respect to memory, perhaps too tight in your case.

descartes · October 15, 2021, 10:27pm

Yes, hence the comment about lack of memory above - the Heltech modules have far more memory.

As before, forum policy is not to use pictures when you can copy & paste the text. Please review the how-to

The MobileFish tutorial gives some useful information although I find that using LoRaWAN 1.0.2 doesn’t work as well with the new stack. I haven’t tried turning off the TimeReq MAC command but I can see that that would help.

I note in one of your text sections above you are including <Adafruit_Sensor.h> - I’m not sure that is required for the DHT library and it may be adding an overhead to both flash & RAM, you may want to try removing it.

But overall you appear to have got to a point where it thinks it is transmitting the Join Request.

What was the flash size & available SRAM on the compile? It is shown in the IDE just before it downloads to the device - DO NOT take a screen shot - it is text.
Does your gateway “see” the join request in its web console? If not, does the gateway internal log see the transmission?
How far apart is the device & the gateway?
Did you put the OTAA EUI’s in as little endian?
Can you try the example TTN OTAA sketch without any extras, just the 2 EUI’s & the AppKey?

MarcKCity · October 16, 2021, 9:56am

Sorry for the picture I now know only pictures when it is needed.

I now flashed the lmic example code ttn OTAA and get in the Arduino IDE the result:

Packet queued
2571: EV_JOINING
3132: EV_TXSTART
404925: EV_JOIN_TXCOMPLETE: no JoinAccept
413495: EV_TXSTART
793966: EV_JOIN_TXCOMPLETE: no JoinAccept
973362: EV_TXSTART

In the gateway nothing appear ?! in the V3 Console nothing see in the live message stream too.

yes 2 lsb and the appkey in msb I know that

68% and 70% ius used with the example ttn otaa sketch.

Gateway:

    "boot_time": "1970-01-01T00:00:00Z",
    "versions": {
      "hal": "Version: 5.0.1; Options: native;",
      "platform": "IMST + Rpi"
    },
    "metrics": {
      "cpu_percentage": 0,
      "lmnw": 0,
      "lmok": 0,
      "lmst": 0,
      "load_1": 1.26,
      "load_15": 1.44,
      "load_5": 1.46,
      "lpps": 0,
      "memory_percentage": 70.45938,
      "rtt_ms": 291,
      "rxin": 3946,
      "rxok": 153,
      "temp": 40.084,
      "txin": 46,
      "txok": 46
    }
  },
  "correlation_ids": [
    "gs:conn:01FJ464G5SZ295Y00D6N7G41EC",
    "gs:status:01FJ48D4TM6KR9XYCBH92XQN10"
  ],
  "origin": "ip-10-100-6-163.eu-west-1.compute.internal",
  "context": {
    "tenant-id": "CgN0dG4="
  },
  "visibility": {
    "rights": [
      "RIGHT_GATEWAY_STATUS_READ",
      "RIGHT_GATEWAY_STATUS_READ"
    ]
  },

regards from Germany
Marc

descartes · October 16, 2021, 12:30pm

Flash/SRAM use similar to my test device - although the actual numbers would be clearer - 22K leaves plenty of space for a small selection of sensors but 614B is getting close to where I see the devices freezing.

I wasn’t thinking of the gateway config, I was thinking of the log of activity from the gateway that shows uplinks & downlinks. This will show if the gateway hears the join request. If it does, but it has some issue - like it fails the CRC check - it won’t be sent on to TTS which is why it wouldn’t been seen on the gateway console.

Do you have any other devices you could use to verify the gateway is OK?

You may have done this already, but just checking you’ve changed the region in lmic_project_config.h?

MarcKCity · October 16, 2021, 2:11pm

the config. h is default set to 868mhz I changed nothing because I found nothing to change there.

what do you mean with log of activity ? I only see live data in the V3 and in my rpi terminal it shows nothing.

with the heltec v2 board it sends hello world to the same gateway.

my gateway is only 10 meters away so no problem

regards from Germany

descartes · October 16, 2021, 2:41pm

Not config.h. I said lmic_project_config.h.

Read GitHub - mcci-catena/arduino-lmic: LoraWAN-MAC-in-C library, adapted to run under the Arduino environment

As for the gateway, check the system.log for output from the gateway software.