Chirpstack downlink. ChirpStack Application Server.

Chirpstack downlink Captura de pantalla 2023-10-20 a Last year the same gateway was under TTN and downlink worked. The server might have sent a join accept, but has the node actually heard it? Have you tried configuring the node as ABP and seeing if downlink messages are received? I’ve been having issues with on a heltec WiFi lora board where after some time downlink packets are not received. Semtech Downlink Json: {“txpk”: Environment AWS EC2 ubuntu running: NS 3. Hi! So, I on my endpoint is running the abp-ttn. Now, I aim to implement a user interface feature where, upon pressing a button on my web page, a downlink message is sent to the device. ChirpStack (v4) dcala23 December 6, 2024, 9:53am 1. After enqueueing Class C ChirpStack persists downlink queue-items in its database. For the Relay Gateway <> Border Gateway, it might use the same radio band as the End Device, or it could use the ISM2400 band (based on hardware capabilities + use-case requirements). I can see the Downlink in the queue, but as soon as I turn on the Devices and they connect and start sending Uplinks, my downlink disappears from the queue but the events doesn’t show any downlink. Other devices are successfully receiving data from the first gateway, but this one device isn’t. 1. Sensor: Laird RS191 Gateway: Femto IoT Internal Gateway(test), Laird RG191 (Production) Distance: 10m (lab), 50m(production) I am facing the following issue on chirpstack (v4 in test,v3 in production) with laird senso Hi, I would appreciate help with the following issue. I’m using ic880a-spi on Raspberry Pi 4 as my gateway with ttn-zh/ic880a-gateway setup forwarding packets to Chirpstack Gateway Bridge via exposed UDP port (this is running on a remote server). When I generate a downlink-message it dissapears from the queue right away. Today we made integration on thingsboard PE (V3. 0. For some reason ChirpStack was sending ‘LinkADRReq’ packet to the device every time the device transmits a packet on the uplink. You could validate this in the ChirpStack Gateway Bridge if any tx ack was received from the gateway. Uplink data is reaching from LoRa terminal to Node-RED. However, this can be unpredictable as this depends on the received uplinks from the devices. I have tried to send a Confirmed hex message on FPort2 with the value: Hi, I’ve been trying of sending downlinks to my RN2903 nodes but I’ve not been able of doing this. I am using ABP. Since both gateways share ChirpStack, the pending message initially sent by the first gateway was cleared once it connected to the second gateway. FMMTG October 20, 2023, 3:35pm 1. My questions are marked bold below. For US915 the downlink channels = uplink channel (not freq. ChirpStack Network Server. Basically, the LoRa Server is receiving only one message with success. Generate a downlink packet with the LNS less than 2 seconds after an uplink has occurred. 793450Z ERROR chirpstack::downlink::scheduler: Schedule next queue-item for device failed error=region_name does not exist in REGIONS chirpstack_1 | 2022-11-17T17:22:28. If RX1 fails, the gateway will retry using RX2. The port is not always easy to find Hello, I’m using an LPS8 Dragino gateway with firmware lgw-5. 3. If i’m looking at the wrong place, i’ll appreciate any tips Something like this: // topic: message/{{ . I set [Gateway-profiles] is 433mHz SF=7 BW=125kHz Uplink is working but downlink is not. Could you let me know what the issue might be? Is there anything specific to downlink that needs to be configured? Hi there, So I’m testing a first Downlink. this was well recieved at the server but when i modify the code to send my voltage and current sensor values, although Downlink mqtt messages Dragino fail. For a meter device I don’t see a reason to do that. 0 Localhost mosquitto broker Gateway-bridge 3. Base64 to hex: Encode and decode bytes online - cryptii) then use the “Enqueue downlink payload” section in ChirpStack. ChirpStack Application Server . Hi everyone! I meet some issues with class C downlinks. So far everything works, join; payload decoder, but the devices send a join request after ~14 days. I developed a Javascript Encoder that takes Fport and obj and returns a decimal array. Codec. I've flushed all device queues, but the issue remains. chirpstack: image: chirpstack/chirpstack:4. I will It runs the ChirpStack Gateway Mesh component which handles the relaying of uplink and downlink packages between the Relay Gateway and the Border Gateway. Note that when your devices is configured as an OTAA device, LoRa Server assumes that your device uses 869525000 as its default RX2 frequency. I don’t see a solution for my use case. I would now like to schedule downlinks using MQTT. The issue involves downlink messages getting stalled in the queue, and I’m encountering specific errors that I’m hoping to get help with. This will print: ChirpStack is an open-source LoRaWAN(TM) Network Server Usage: chirpstack --config <DIR> [COMMAND] Commands: configfile Print the configuration template print-ds Print the device-session for debugging import-legacy-lorawan-devices-repository Import legacy lorawan-devices repository Based on a SNR margin (configurable through the chirpstack-network-server. The application is stop. What’s the cause of this problem? I published a downlink from Chirpstack application. What could be the problem? Thank you in advance. The device is parked so every one / two days I hit the tracker to make sure it’s alive and I don’t have bugs in my code 😛 This is the story of the device. github. I Add a byte in the downlink to be confirmed by the device. But when I try to run chirpstack with chirpstack. I think it was because of the signal strength of the sensors, the sensors with good signal strength received the downlinks. 810152Z ERROR chirpstack::downlink::scheduler: Schedule next queue-item for device failed error=region_name does not exist in REGIONS chirpstack_1 Yes, but as your device did send data before, LoRa Server will send the data immediately as it knows which gateway to use. This behaviour repeats with every device. 4Mhz as well. In some cases you already know which gateways you want to use for multicast downlinks, in such case you can set this table yourself Has someone experience with calling this api from the requests package in python?. Can someone explain what am I doing wrong? I ChirpStack will only consider a downlink as transmitted when it receives an acknowledgement from the gateway. g. Here what I have done: Set up a gateway (with SEMTECH UDP Packet Forwarder). At the LoRa App Server our device profile is LoRaWan Mac version 1. You can use the link provided by TB (HTTP endpoint URL) from the 'integration details' (don't This page describes how you can integrate your ChirpStack instance with Datacake so you can receive data from your devices and send downlinks back to them. How can I disable this? Must send (LoRA App Server) in response to the node only if I send something. Do you have example of decode and encode functions? I noticed that both Chirpstack and TB need these functions( TB data converter need take care uplink and downlink). DR=5: item_size:“55” max_payload_size:“51” queue_item_id:“53aa1833-e210-4802-9a2e-0fc490f1f4cf” Why do I get DR=5, the maximum load is still 51, shouldn’t it be 222; This is what I have to configure： LoRaWAN 1. ViktorM November 26, 2024, 12:17pm . They run without errors. But now I want to try to send some data to Class C When I put {“method”:“setAL2Value”,“id”:0,“params”:true} at the Application > Device > Queue, the gateway and node can receive the downlink. 5 to enable class C. . The sensor that we have for testing is a Dragino LHT65, and I prepared a very basic payload that I submitted using the GUI. What we find is that the packet is sent with RX2 parameters, on the RX2 frequency, while the Additional question. This stream exposes: Click "Import"; The "Downlink to Chirpstack" rule chain will open. Hello, We have a Dragino LT-22222-L that is a lorawan device with Rele, and for make work turning up the rele We have to introduce in queue the code of payload = 0x030100 in hex or in base64 and for turning down We have to introduce 0x030000 and works. [network] # Time to wait for uplink de-duplication. Then I tried the Python API following “Python examples - ChirpStack open-source LoRaWAN^® Network Server” with necessary changes (server addr; token; I am using a Dragino LPS8V2 Gateway with Chirpstack and a Dragino LT-2222-L node in class-C I need to send a batch of between 0-20 downlinks every 5 minutes, each downlink activates the relay output for 1 second. On endpoint console output I noticed all The downlink spreading-factor and frequency is based on the uplink sent by the device. DevEUI }}/event/txack { "data": "YWFiYmNj", I current recieve my uplinks but very unable to recieve the downlinks even at the gateway log. 2 A Default Hi, I have been running my own LNS of chirpstack v4 (docker) . It happens that even when sending confirmed Downlinks, they are queued correctly but even if it receives an ACK with a false value, it does not send This is the response that we are fetching when we achieve in a downlink . Note: For this step you need to obtain an API token from the ChirpStack web-interface first! To send the downlink message generated by the echo function to ChirpStack, add a device downlink node and connect the input to the output of the function node. In case ChirpStack is unable to use the given downlink frame-counter (e. Before #1: I added data as confirmed downlink using MQTT #1: Ther server received a confirmed uplink from a node and the server sent a confirmed downlink including ack for the previous uplink. RX1, RX2). In Chirpstack v3, the working way was: BEFORE creating the device, enter a “Service Hi Folks, I’m in the process of moving from v3 to v4, and I have one odd issue left regarding downlink messages to a class C device (a Kuando busyLight) On my V3 system if enqueue a message for the device from a JSON object I can see the message in the queue along with an automatically generated FCnt and the Base64 encoded data from me encoded Configuration. toml config file). It seems the chirpstack server doesn’t subcribe to the downlink topic anymore? Please help to advise me. I have set Class-C confirmed downlink timeout *: 2 seconds in the device profile but also setting for example 5, it doesn’t works anyway. All works fine on upstream, payload is decoded successfully, it is well received on DataCake side, I can see downlink has been scheduled and sent Payload Hi, In All over product we use things board as our final dashboard or cloud solution. Depending the marshaler configuration, these are sent as:. No Even, I am searching for the same thing. 1) with Chirpstack V4 by http integration as the document said ChirpStack Integration | ThingsBoard Professional Edition. ChirpStack could send multiple downlink opportunities (e. I am not sure on how to add all header informations including the authentication token. Despite correctly receiving uplinks from the device: Screenshot_20230301_090632 673×638 37. I copied the example value of post body and changed some fields: { "confirm ERROR chirpstack::downlink::scheduler: Schedule next queue-item for device failed error=Get device lock. The following node properties must be set: Server: localhost:8080 ChirpStack returns this context object when sending the downlink in case of a timing: DELAY download. Events are generated by the ChirpStack Gateway Bridge and forwarded to the configured integration. NicolasUy May 23, 2023, 2:56pm 2. The nex. It periodically uploads its status to the server. Here are the Downlink data ：max_payload_size. In this approach, a downlink is recorded first and then sent out. I don’t think this is an end-device issue because this happens with two different types of end devices (one is using In a multicast setup where there is more than one gateway, does chirpstack know which gateway to send the multicast message? in other LNS’s one needs to specify the downlink path, indicating the gateway to send it through, I don’t see I am trying to use the ChirpStack UI (Applications / Devices) to send a downlink message to a specific Class A device. toml”. or. ChirpStack Community Forum Chirpstack Downlink from MQTT. It mentions the use of shared subscription, but this is not a feature of MQTT 3. The problem is that sometimes and due to random problems (i. Chirpstack is receiving all the uplinks. All my devices are chirpstack_1 | 2022-11-17T17:22:26. Hello everyone I am using a chirpstack installation on Ubuntu and already have a GW and a Dragino temperature sensor in use. ) % 8. The Lora Concentrator is a I run Chirpstack on Docker. It’s reached a point that The Things Industries is doing their best to solve the problem by managing a I believe i found it as an option in the “chirpstack-network-server. From that set, it will take a random gateway. I h I am also looking at other way around: by sending a downlink request post to InfluxDB, an EXEC command in alert handler on InfluxDb can be used to send downlink over MQTT. Background Versions chirpstack-application-server version : 3. If the gateway has been going “online” and “offline” in Chirpstack, and if you are using the UDP packet forwarder, please check that your gateway is sending the statistics message often enough. toml and region_au915_0. Using a downlink >51 bytes works “out of the box” in TTN. The downlink is available in Downlink My aim is to send a DownLink message to a class C end-node using the same frequency used during join procedure. brijesh_anchan July 11, 2022, 12:46pm 1. I have compiled chirpstack with sqlite support. It will come back to working. Hello Himansu! You seem to be handling quite a complex project. 04 chirpstack docker: v4 rc2 using rak gateway all configs using default except regions, i use AS923 i use chirpstack web ui to Enqueue a downlink the logs just show Device queue-item enqueued but the device can not receive the downlink my device profile what i did wrong? Hi all, Downlink data does not pass from Mosquitto to ChirpStack. A codec will handle the encoding and decoding of raw (binary) payloads. Thanks for the answer. I’m using a Linux minicom with a UART USB debugger to send commands and check results of my RN2483, Hello! I was trying to figure out how to send a packet to LoRa node with random payload but got messed. I can uplink 242, and my lorawan stack tells me the max Hello everyone, we are working in some integrations with Chirpstack, and we need to receive the downlink payload via MQTT integration, as described here Event types, there is no data for the downlink events, just like uplink has. After a while, I realized that my device address, network key and application key keep on missing (empty). This flow will consume uplink event using MQTT and will enqueue downlink messages using the downlink node, which The uplink / downlink metadata stream exposes metadata that can be used for for example billing-purposes. I have successfully written a python script to access the uplink messages from my node, using paho-mqtt. Let’s assume I run the whole Chirpstack stack in a local computer, from the docker, for example. Recently I’ve had a gateway go down due to a suspected power spike, and I’ve been struggling to get it back up and working correctly. 13. it has already been incremented at the ChirpStack side), then ChirpStack Hi I’m using HTTP integration with my application, and I am getting the uplink data from the LNS. Could you please give me some kind and friendly advice? The downlink data path is as follows. However, I’m not able to send downlinks to my devices. Paolo. yes it is possible to send downlink without transmitting uplink first. In Chirpstack v3, the working way was: BEFORE creating the device, enter a “Service Profile” On enqueue, it must set the f_cnt_down and is_encrypted fields of the DeviceQueueItem, to make ChirpStack aware that the downlink payload has already been encrypted and which downlink frame-counter was used for encryption. To my knowledge, when one sends a confirmed downlink, the server will wait for an Hi I’m using HTTP integration with my application, and I am getting the uplink data from the LNS. The downlinks are logged in the chirpstack/chirpstack:4 chirpstack/chirpstack-gateway-bridge:4 services. use different port for different reasons. brocaar May 26, 2022, 11:26am 2. To protect EEPROM I write fcnt every problem: device uplink works fine, but downlink seems not working. I can see Uplink and downlink in appserver GUI - all looks working fine. My device is able to join (OTAA), and send HI I tried to configure CN470, and I got MAC version LoRaWAN= 1. My testing determines that is does not attempt any retries. What I do is grab the spec of my devices, find the downlink payload description, build the payload frame, encode it from bytes into base64 (with e. it’s been stuck in enqueue itself. Hi, I have a problem with the downlink queue. Node-RED → MQTT broker (Mosquitto) → ChirpStack LoRaWAN Network Server → LoRa Gateway (Packet Forwarder) Name it "Downlink to Chirpstack", specify "Downlink to Chirpstack" rule chain, and click "Add"; Tap on the right grey circle of the "check relation presence" node and drag this circle to left side of “rule chain” node. Then ChirpStack will automatically send the LinkADRReq command(s) to re-configure the channel-mask to the channels as set in the region_xxxxx. Uplink works well, but downlink can not work. 4Mhz, the downlink will be 922. It works in v3 so I can see the message queued waiting for an uplink message. get_downlink_data_delay. Appreciate you help!! I guess the queue needs to maintain the fcnt, but i don’t understand why the Chirpstack/gateway isn’t ACKing the downlink regardless of the actual device status This is class C, non-confirmed messages. The LoRa App Server always responds to the node with an empty payload (downlink) if I do not send data. For example, once the uplink is sent using 922. Set up, in ChirpStack: The Problem: No downlink message due to this clock syncronization and Multicast setup is not work. RabbitMQ does not support MQTT v5 yet, and this is a difference between it and While technically Chirpstack does implement the RX1 receive window for Class C devices, it seems impossible to insert a downlink message, as a response to an uplink message, into the system in such a way that it will be treated as But in your screenshot, the “TxAck” appears 3s after the uplink. I can’t reliably receive downlinks scheduled via MQTT, Hello all, I humbly write to get help, i am in dare need of help here. However any further downlinks scheduled from the Chirpstack web application are not sent: Screenshot_20230301_090456 708×637 22. JSON: JSON based on the Protobuf Buffers JSON mapping (for debugging) Now, when I try to schedule a downlink, either via MQTT or in Chirpstack application server device view form, it doesn’t work. In the web interface i can see downlinks arriving, but the ack packet has always acknowledged:false. I need to put again and reactive my device again. In this project, I have configured the device as a class C end-node using OTAA for activation. You can find the Java I found the downlink section in the Chirpstack server, called “Enqueue downlink payload”, where I selected the port, confirmed the donwlink, and in the “Base64 encoded string” section I entered the message: “Gg==” yes it is possible to send downlink without transmitting uplink first. I have checked a lot of threads of the forum which seem to be that scheduling a downlink is easy and straightforward, but I’ve Hi everyone, I’m trying to send a downlink to a RN2483 LoRa Transceiver using the latest firmware 1. I managed to get it up and running on Docker and have secured it using Traefik. Hello! I’m currently studying how the downlinks are managed internally, specifically the communication between the gateway and chirpstack. Firstly, I have If could be that you have a really old Semtech UDP Packet Forwarder installed on your gateway, which doesn’t send TX acknowledgements (indicating if the gateway is able to send the downlink). Now to think about it, perhaps Chirpstack had sent MAC commands before the downlink was sent, which were responded to by the device. Under chirpstack I never solved it. toml”: # Downlink TX Power (dBm) # # When set to -1, the downlink TX Power from the configured band will # be used. 5 Events. But the device is not in sleep mode which costs much of energy. 3_linux; chirpstack-gateway-bridge: 4. Depending the marshaler configuration, these must be sent as: For the This guide explains how to setup Node-RED with the ChirpStack Node-RED nodes and setup a simple echo flow. Any help will be appreciated. Hi, I am using gRPC to activate several devices at the same time and sending them a Downlink while doing that. For DR_3 in US915, I expect a payload size of 242 bytes each way, but chirpstack is limiting the downlink to 53 bytes. One a receive window occurs (triggered by an uplink), ChirpStack will transmit the items in the downlink queue FIFO to the device. RX1 / RX2) in Redis and when there is an However any further downlinks scheduled from the Chirpstack web application are not sent: Screenshot_20230301_090456 708×637 22. cherechi August 12, 2020, 3:29pm #1. )? I assume they are queued for transmission in FIFO order? How many can be buffered in the queue at once per device (i. My question is why does this happen? Isn’t it I recently set up the latest Chirpstack V4 (chirpstack: 4. 7. Environment: ChirpStack version: Hello, I am trying to setup RAK10701 field tester on my Chirpstack v4 server, which sends uplink to DataCake through HTTP and then DataCake schedules Downlink back to the node via Chirpstack API. I have configured the ChirpStack network server in the way that the message interchange between my device and the IoT platform is atomic. I think it may be LMIC (I assume that’s what you’re using The downlink disappearing, is perhaps an indicator that the gateway did transmit the downlink, so Chirpstack removed it from the queue. Please note that mac-commands will get priority over application-payloads. We would like to send a confirmed downlink to a device, and if the end device does not respond we send another confirmed downlink if it does. Below are the details: URL : Hi. I have two issues currently. The NS will send both the RX1 and RX2 downlinks to the gateway. The logs can be found in the attached picture. Hi, We are facing issue while sending downlink command to device, that command not getting processed. In Chirpstack log we are seeing below erro The message is getting queued but I don’t see any further logs from App server corresponding to Downlink. I see my confirmed downlink message in the device queue and i also see my initial downlink frame in the Chirpstack Lorawan Frames panel in the web browser. e. but face issue for downlink messages. I already have downlink via MQTT Integration (through MQTT Broker). 0 chirpstack-network-server version : 3. When I moved it to the second gateway, the pending message cleared. In fact, I am using an For the chirpstack, I’m running it in docker-ce on a pc using ubuntu 18. paolotr August 1, 2022, 8:43am 5. Downlink must be confirmed. According to the device manufacturer, the Downlink Frequency depends on the Uplink sent. All this information, including how the uplink DR maps to the Hi, I am trying to send downlinks to an ESP32 v3 LoRa in class-C. It involves downlink the queue is empty. Hi brocaar, I tried with confirmed an non confirmed downlinks. I found a problem when Downlink or Uplink up to 65534. I made the integration with chirpstack and can see the uplink packages join request. Thanks a lot. x, while it seemed to have no problems connecting to Mosquitto. I have been able to successfully login, generate a token, and delete downlink queues. Hi Nicolas, below the LBT I see in my gateway. This interferes with the downlink request and the device ends up ignoring the downlink request. The situation is as follows. I copied the example value of post body and changed some fields: { ERROR chirpstack::downlink::scheduler: Schedule next queue-item for device failed error=Get device lock. I have a prototype GPS tracker enabled by accelerometer . I do receive uplink messages (they can be seen under the “Device data” and “Lorawan frames” tabs) but the server never initiates the downlink message. ino example, I just changed the ABP keys configuration. # # This is the time that I managed to successfully send the downlink in the end, but I had to disable ADR on the device to get it to work. But again for a meter, I don’t find a reason to send a downlink. The sensor reports data as it should but I’m struggeling with the downlink. Usually the downlink is unconfirmed if I My earlier question was if we gave a random topic name like “AllMyUplinks” to receive uplinks from devices and send downlink to a device on topic “MyDownlink” - without providing the application ID or device id anywhere in the topic. Thanks, Himansu Donga. I cannot seem to connect a new build of Chirpstack to RabbitMQ 3. Code incorporated in "Chirpstack. Received uplinks. That means that the uplink is always replied with the proper downlink, that is processed by the device. 15. I have access to the various containers using Portainer CE. After the join, it can receive a downlink (after an uplink), but it can't send any further downlinks and the downlink queue never clears. Jake_Murphy February 11, 2021, 9:15pm 1. Hi, I have an issue with downlinks enqueued via the application server web interface not coming through to the device. I can see the record is present in DB. As mentioned it comes with the status 200 with an empty result set also. I’ve also tried with TTN and downlinks work perfectly (because there it’s not needed to encode to base64, json objects with base64 data or similar). On the Chirpstack side, I've used both (Thingsboard and HTTP) integrations. I’ve been using Chirpstack for a couple of years without any problem. ChirpStack Simulator (again): No JoinAccept/Downlink. 10; End device: mbed-os-lorawan node as class C; No messages use ‘confirmed’ Reproduction. Please I need help on sending dowlink to my device using the MQTT on nodered. This stream is published under the stream:meta Redis key. = downlink freq. I’m running: mLinux 5. I am using ChirpStack version 4 with a Mikrotik ltAp gateway. However, any downlinks that I queue is not reaching the device. I will reset downlink and Uplink to zero set. frequency) try to set Rxparameter(contain frequency set) of device, but the Hi, We are having some troubles with ACK and downlink transmissions with out Kerlink Wirnet iBTS gateway. This downlink activity should be I guess the downlink payload and the MAC command/acknowledgement should be sent in the same packet. { “metadata”: { “fPort”: “3”, “DevEUI”: “7cf95720fc015fef” }, “payload”: “ODAwMQ I want to add a downlink payload to the network-server device queue, so I tried the post method of DeviceQueue in LoRa App REST API web page. I beileve that “ack”: true means the acknowlegement for the previous uplink. ChirpStack Community Forum Downlink and Uplink frame-Counter Problem. The problem should be somewhere else: IMG_20220801_104117 1920×1897 408 KB. The settings used are just the docker-compose default settings. toml, MQTT does not Today we made integration on thingsboard PE (V3. For EU868 uplink freq. Unfortunately I am not able to understand the GO code and would appreciate if someone shares his experience. We integrate things board with chirpstack. Changing your device to Class-B means that before operating as a Class-B Chirpstack NS 3. Everything works fine, I was able to connect my GW to the server and receive some data from my node. The downlink tx-power is not related Chirpstack v4 with Device DR5 SF7 (rssi -75) Region EU868 (Min DR: 0, max DR: 5) I try a downlinks longer than 51 characters and get ERROR: level:"ERROR" code:"DOWNLINK_PAYLOAD_SIZE" description:"Device queue-item disc In the current default, ChirpStack will try to determine the minimum amount of gateways needed to send the multicast downlink. As a result, I can visualize device data on a Grafana dashboard, both within a web page and independently. The thingsboard PE integration sendout below data. ChirpStack (v4) chandrasekhar October 19, 2022, 1:50pm 1. 3 regional parameter 3, OTAA enabled, Class C device and the frame counter validation is disabled. I would like to know how should I do to fix it. Node class A. 2A. Hi All, I feel like a broken record, and I’m sure everyone’s fed up seeing my silly leaf on the user column. Uplink work ok with that integration. I am working with a customized LoRa Gateway based on the SX1302. In case of failure I find this in the “live lorawan frames”: fCnt:0 fPort:null frmPayload:null PS: the use of fCnt (Downlink frame-counter) in the I’ve been wondering about the upcoming changelog for v4. I have installed the server on my gateway, I first configured to send Hello world. The message is enqueued but never sent. 0-r1 running on Conduit GW 4 dummy Class-C devices (powered down for test, so that NO uplinks can mess with this test). Now I have implemented Uplink via Device Access Token (without MQTT), But I want to send Downlink command (Base 64 encoded) from thingsboard Dashboard over HTTP Integration to end-device (LoRa-Server > device Queue). Description Server not always generating a downlink message after receiving a confirmed uplink. Unfortunately I can not confirm the download packages. com. 4 but I can't see any application data, like temperature etc. I have a problem with my setup. All the binaries are running on my gateway, all localhost: chirpstack-gateway-bridge, basicstation, mosquitto, redis and chirpstack itself. Note that the configured TX Power must be # supported Anything further on this? I’m experiencing similar issues. then start the device, loraserver receive several uplink frame, after each uplink frame, the loraserver send a downlink frame (with correct txinfo. I believe i need more works on decode and encode function. It stores the downlink(s) (e. I need to send downlink manually via I’m having strange duplicate DOWNLINKs coming as UPLINKs. ChirpStack Community Forum Chirpstack downlink help. 2 and V3. 3 KB. or - new idea - If the device received downlink in the next message can notify about this in the payload. The time between fist and last uplink is 2 weeks. 12. I’m initially testing using postman. ChirpStack sends an ack event with ack: true to the configured integration as soon the max-payload. Thank you. Attached the Chirpstack network-server log. toml, MQTT does not Hi there. By default the DR is equal, unless you have configured the rx1_offset config option. When I am sending Hello there. While trying to find some information about the TX power of the gateway we realized that the gateway/[mac]/tx topic has a “power” field inside “txInfo”. Here are the Hello there. Server sometimes sends a downlink. 0 chirpstack-gateway-bridge version : 3. But even though the sensor has sent multiple Uplinks, the Downlink is still showing in the Downlink Queue (being a class A sensor it is supposed to open 2 receive slots after each Uplink). In Json send from Chirpstack Server to my Gateway is missing fre I have a RAK2287 gateway/application server/network server. If the field “fCnt” is at “1” (I see it in the database “Postgresql”, table : “device_queue”) then the payload is sent to the device. Here, select the "True" link, Hi I’m struggeling a bit with my testing of Chirpstack. On the LoRa Server logs I am seeing some uplink messages until receiving a downlink message and then the uplink message does not appear anymore. 31 chirpstack-gateway-bridge - 4. My setup is for now one gateway and one sensor. I changed the "get_downlink_data_delay=“100ms” setting from 100ms → 75ms and so on. I have created new devices in an application. No downlink is mentioned in either place. Uplink works well, but downlink I want to add a downlink payload to the network-server device queue, so I tried the post method of DeviceQueue in LoRa App REST API web page. The current value is 20, we were wondering what that means. After enabling class C on said device, I’m trying to send messages using the REST API enqueue, with the correct device EUI. Rather the downlink item in the queue just gets deleted. brocaar/chirpstack-simulator I am trying to understand this issue as well. If you want to generate a downlink to confirm it works, you could send configuration down via the enqueue downlink on the device’s page. We are trying to send downlink and it keeps on discarding. Details: Class A device, OTAA, eu868 ChirpStack v4 on Docker with Traefik and Portainer Uplinks work fine Downlink Hi, I’m trying to send a mqtt downlink message via node red mqtt. Hii, I am sending MAC commands to my end device and it is working fine. toml # Network related configuration. I can get data sent from lorawan Commands are generated by ChirpStack or external applications integrating with the ChirpStack Gateway Bridge. The ChirpStack Network Server does not wait for an ACK or nACK. 🙁 Say, what do I need to look for? I already have installed lora-server, lora-app-server, lora-dateway. RR86 October 24, 2023, 12:09pm 3. 4. I think there are two possibilities: You misconfigured the downlink frequency somewhere in your configuration; You misconfigured the frequency range supported by your gateway Thank you for the above help, I think I discovered the issue. Enqueue downlink. 9. 1 3. So I wonder Hello everyone, I have a problem with a device (Elvaco modules for heat meters). 6 KB. 1601912950. a transmission A few questions about downlink messages: Where are the messages actually stored (on the AS or NS; in memory, SQL, etc. We already query Hi All, With the go script shown below, I am currently trying to figure out how to send downlink messages with MAC Commands to my end node: STM32L0 (b-l072z-lrwan1). The gateway is a Raspberry Pi4 with the Chirpstack OS running. Apollo February 14, 2023, 9:11am 1. In this case the ChirpStack Gateway Bridge knows how to decode the internal time from the context and increment it with the specified delay from the downlink. Both Reagion OTAA Joining and Uplink message work fine. The text was I have a custom gateway with an armv7l architecture processor. I swear once this is all working I’ll leave the forum! Or stay and try to help others. Let me know if any solution or performing any wrong step. Excuse me Chopmann, i understood Lora tx delays mechanism but i would like to know if in an environment with high network latency deacreasing get_downlink_data_delay may help to respect a rx1_delay of 1second. I want to use Lorawan with 433Mhz. Hello All, I am trying to schedule a downlink to NKE Intenso device to configure thresholds and report alarm. ChirpStack Community Forum Downlink Queue item discarded because of timeout. I current recieve my uplinks but very unable to For Class-C devices you must configure the Class-C confirmed downlink timeout in (seconds), which is the time that ChirpStack will wait for a confirmation on a confirmed downlink. [Screenshot from 2017-08-28 16-19-07] Although we are trying to check Hi again I need clarification on whether Chirpstack will try and retransmit a confirmed Class C downlink if no ack received from node. Thus you wouldn’t see the downlink and the subsequent uplink, which would have triggered the ability to send thay downlink at 02:31. All 4 last uplinks via single gateway, so all 4 downlinks are sent via one gateway Class-C settings, if applicable Hi all. Currently I am working through this: I can’t get downlinks to get sent to my device. As a node I use a Heltec Wireless Stick. Additionally, I’ve integrated ChirpStack with InfluxDB, and InfluxDB with Grafana. If I try to do the same in v4 I don’t see the message queued inside the dev I have problems during a downlink. I sent the downlink data through enqueue, but when DR=5, I was still prompted that the maximum load was 51. toml file? and how can we get confirmation that the command is succeded and the gateway is transmitting at that power level? Thank You, Shubham. My device wakes up and sends data once every hour so I expected the downlinkmessage to be In your chirpstack api on the confirmed array make it false not true because if the confirmed array value is true the app server will have to wait the next uplink in other to trigger the downlink so make your confirmed array to false and check for me it’s works well As a test, I incorporated the following code into “Chirpstack. I am using the Rest API page. For this I have to send a downlink message with the value “PNACKMD=1” to the sensor. # # Please consult the LoRaWAN Regional Parameters and local regulations # for valid and legal options. For the chirpstack, I’m running it in docker on a raspberry pi using the latest github releases. 0 AS 3. But In downlink, json packet, some parameters are missing comapred to semtech udp downlink packet. Hello; I use LoRaServer version 2. 3_linux) and it can receive packets from node without any problem. I looked at the logs, both on the gateway and those of chirpstack. Now I would like to use the Datalog feature of Dragino. Apparently the devices expect some feedback from the LNS so they know they are still connected. I am trying to queue some downlink packets to nodes but I cannot get the Curl command to work. env: ubuntu 18. Below are the details: URL : max-payload. Only on receiving an ACK ChirpStack will show the downlink in the web-interface and increment the frame-counter. Using the /api page I entered "deviceQueueItem": { "confirmed": My team and I are interested in adding some retry functionality to the downlinks on Chirpstack Application server, specifically for class C devices. 04, The settings used are just the docker-compose default settings. Hello ChirpStack Community, I’m currently facing a challenge with downlink message handling in my ChirpStack environment. I am having issues sending a downlink packet from the application server to a node. We switched to Chirpstack V4 from another Lorawan server. However, if this is not the case, the payload is not sent. Set up a STM32WL with a classic End-Node project (furnished by STMicroelectronics by the way). toml configuration. 2; Chirpstack AS 3. I’m experiencing troubles with downlink communication. Chirpstack -- application -- Codec need these functions too Hello, I am trying to switch my device from Class A to Class C. is there a limit to the number of downlink messages that can be queued for a given device)? Does use of the Hi there, Since days ago Im started to see a ton of this errors 2024-10-31T15:24:57. I’ve been quite frustrated by the lack of a standard between LoRa device manufacturers in their uplink & downlink payloads. Confirmed data. This is the payload of the confirmed downlink. However, there was no improvement. Really old packet-forwarder versions did not send back these acknowledgements. Double-click on the "integration downlink" node; Specify ChirpStack integration in the "Integration" field; Save rule chain by pressing on checkmark. 2 Framecounter has been disabled as I have read that Hello there! kinda new using Chirpstack, I have a question regarding Queue of dowlink message, in the device profile used in my application I do not mark class a or class b, but I have the felling that when I enqueue manually (from the application server) a dowlink message it is send immediately not waiting for a uplink message, I have checked this on the LoraWan Dear ChirpStackers! I’m having issues with my Multitech Conduit MTCDT-H5-210L not delivering downlink messages to devices. thanks . 708365Z ERROR chirpstack::downlink::tx_ack: Handling tx ack error error=Object Hello, I have loraserver up an running (GW bridge, loraserver and lora appserver on one physical host). On every downlink, it will detect which mac-commands are needed to Hi all. Hi, is it possible to configure the RX2 frequency slot of the Network Server equal to the RX1 device’s join frequency ? My aim is to I am new to ChirpStack. (fcnt=1) Jump because of restart of device. Or you configure class C. Agent_G_G February 4, 2019, 4:21am 1. paolotr What MAC command is sent by the Network Server when we set a particular downlink_Tx_power in the Chirpstack_Network_Server. 57. To protect EEPROM I write fcnt every So I suspect that a Chirpstack component, probably the network server, is waiting for this ack to define the downlink message has been accepted by the gateway, stops retrying, and displays it in the console. My project i am building a system I want my device to send voltage and current value to the server. I can understand how the uplink data works, the gateway pick up the LoRaWAN packet, then is forwarder, to the chirpstack gateway Thanks for you reply, The Detailed description of my question is: 1、The device added to lorawan via ABP, the Addr, Nws, Apps are set correctly. ChirpStack Application Server. Either you configure class B for your device, then you can define receive windows in a specific interval. To list all CLI options, start chirpstack with the --help flag. Then your device opens the receive window as long as it transmits an uplink packet. 10-r1 lora-packet-forwarder-usb - I am using chripstack on my server, My gateway is custom made gateway, I want to use MQTT protocol rather than Semtech UDP Packet Forwarder. Or, am I fundamentally wrong somewhere. ChirpStack Community Forum RX2 slot frequency. In this tab you can configure a payload codec. It seems like the message has been enqueued, but the device never receives it. Background: there is an application server, two configured network servers, two configured gateways (currently just one for each network server) with the gateway bridge, three applications. I am using Chirpstack v4 deployed with docker compose. Node-RED → MQTT broker (Mosquitto) → ChirpStack LoRaWAN Network Server → LoRa Gateway (Packet Forwarder) Hi all, Downlink data does not pass from Mosquitto to ChirpStack. Any help will be For example when you are using confirmed downlinks, then ChirpStack will keep the item in the queue until it has been acknowledged by your device, or until the Class-C timeout has occurred (configured in the device-profile). 14; Chirpstack GB 3. I get success in uplinks using MQTT packet structure as mentioned here. See image below I am running some Senscap Helium gateways. In the old LNS, a Hi Firstly, thank you for an awesome piece of software. 11. ijiqft jjk qhu xpzi nxl nuts bek ixagy mftphzv scj