# End Devices (Nodes) **URL:** https://www.thethingsnetwork.org/forum/c/nodes/7.md?no_subcategories=false&page=1 [Latest](https://www.thethingsnetwork.org/forum/latest.md) · [Categories](https://www.thethingsnetwork.org/forum/categories.md) · [Tags](https://www.thethingsnetwork.org/forum/tags.md) **Page:** 2 --- ## [If ADR is meant to optimise datarate, how are payload size and dwell limits taken into account?](https://www.thethingsnetwork.org/forum/t/if-adr-is-meant-to-optimise-datarate-how-are-payload-size-and-dwell-limits-taken-into-account/72524)
**Author:** [@artichoke](https://www.thethingsnetwork.org/forum/u/artichoke)\ **Replies:** 4\ **Last updated:** [November 5, 2025, 11:28am UTC](https://www.thethingsnetwork.org/forum/t/if-adr-is-meant-to-optimise-datarate-how-are-payload-size-and-dwell-limits-taken-into-account/72524 "2025-11-05T11:28:56Z")
Hi, I’m wondering if someone could help me the understand the purpose of ADR. Currently, my node (Radiolib-based, AU915 FSB2) joins fine on ADR at SF10. ADR is enabled, and link quality is good. After join, I send a la… --- ## [MiniPill LoRa - STM32 Low Power Node](https://www.thethingsnetwork.org/forum/t/minipill-lora-stm32-low-power-node/39094)
**Author:** [@leo\_korbee](https://www.thethingsnetwork.org/forum/u/leo_korbee)\ **Replies:** 38\ **Last updated:** [November 4, 2025, 9:36pm UTC](https://www.thethingsnetwork.org/forum/t/minipill-lora-stm32-low-power-node/39094 "2025-11-04T21:36:26Z")
I would like to share my new STM32 node. This node is based on a STM32L051C8T6 microcontroller. With a BME280 environment sensor it uses 1.9 uA in sleep mode. Short list of features: Arduino code is used, combined wit… --- ## [Heltec CubeCell - part 2](https://www.thethingsnetwork.org/forum/t/heltec-cubecell-part-2/37225)
**Author:** [@bluejedi](https://www.thethingsnetwork.org/forum/u/bluejedi)\ **Replies:** 238\ **Last updated:** [October 20, 2025, 10:50pm UTC](https://www.thethingsnetwork.org/forum/t/heltec-cubecell-part-2/37225 "2025-10-20T22:50:56Z")
This is the main Heltec CubeCell topic. For the previous part of this topic see: Heltec CubeCell - part 1 Heltec CubeCell Series is a product series consisting of LoRaWAN modules, development boards and sensor capsu… --- ## [Dragino TrackerD Question - issuing AT commands](https://www.thethingsnetwork.org/forum/t/dragino-trackerd-question-issuing-at-commands/59859)
**Author:** [@lorawandh](https://www.thethingsnetwork.org/forum/u/lorawandh)\ **Replies:** 9\ **Last updated:** [October 11, 2025, 11:16am UTC](https://www.thethingsnetwork.org/forum/t/dragino-trackerd-question-issuing-at-commands/59859 "2025-10-11T11:16:10Z")
I received a Dragino TrackerD device and successfully connected it to TTN. Currently I try to finetune the settings via serial connection to the device from my PC. I was able to connect and I see regular status messages… --- ## [Dragino LT-22222-LT downlink decoder error - redux](https://www.thethingsnetwork.org/forum/t/dragino-lt-22222-lt-downlink-decoder-error-redux/72331)
**Author:** [@johncom](https://www.thethingsnetwork.org/forum/u/johncom)\ **Replies:** 2\ **Last updated:** [October 9, 2025, 2:38pm UTC](https://www.thethingsnetwork.org/forum/t/dragino-lt-22222-lt-downlink-decoder-error-redux/72331 "2025-10-09T14:38:07Z")
Link: Jan 2024 No 01 - Dragino LT-22222-LT downlink decoder error Hello, i have the same problem. Dragino LT-22222-L Firmware v1.6.0 How can i solved the problem? @srjohny Did you can me help? Thank you --- ## [Using E32-433T30D module](https://www.thethingsnetwork.org/forum/t/using-e32-433t30d-module/72274)
**Author:** [@prabha2205](https://www.thethingsnetwork.org/forum/u/prabha2205)\ **Replies:** 2\ **Last updated:** [September 30, 2025, 9:48am UTC](https://www.thethingsnetwork.org/forum/t/using-e32-433t30d-module/72274 "2025-09-30T09:48:41Z")
Hello, I have successfully built a SX1302 LoRaWAN Gateway HAT on Raspberry Pi and connected it to TTN. The gateway appears online and working. Now, I want to use an ESP32 with an E32-433T30D (Ebyte LoRa module) as my e… --- ## [Just added SAMR34 support for TTN arduino-device-lib](https://www.thethingsnetwork.org/forum/t/just-added-samr34-support-for-ttn-arduino-device-lib/57095)
**Author:** [@danalvarez](https://www.thethingsnetwork.org/forum/u/danalvarez)\ **Replies:** 1\ **Last updated:** [September 25, 2025, 6:04pm UTC](https://www.thethingsnetwork.org/forum/t/just-added-samr34-support-for-ttn-arduino-device-lib/57095 "2025-09-25T18:04:47Z")
Hi all! I have recently been tinkering with a WLR089 Xplained Pro board, which is based on the SAMR34. This new LoRa modem is intented to be used as a standalone microcontroller + radio solution from Microchip, but I fo… --- ## [Semtech LR1110 GPS coordinates from GNSS](https://www.thethingsnetwork.org/forum/t/semtech-lr1110-gps-coordinates-from-gnss/35628)
**Author:** [@rp346](https://www.thethingsnetwork.org/forum/u/rp346)\ **Replies:** 31\ **Last updated:** [September 16, 2025, 3:29pm UTC](https://www.thethingsnetwork.org/forum/t/semtech-lr1110-gps-coordinates-from-gnss/35628 "2025-09-16T15:29:19Z")
I am thinking of using Semtech LR1110 for designing tracking device in field with LoRa. Since this one has GNSS & LoRa on SoC, so going with LR1110. But I have a concerns about LR1110. How can I use GNSS data to get … --- ## [Uplinks drop after a few packets](https://www.thethingsnetwork.org/forum/t/uplinks-drop-after-a-few-packets/72011)
**Author:** [@artichoke](https://www.thethingsnetwork.org/forum/u/artichoke)\ **Replies:** 10\ **Last updated:** [September 16, 2025, 12:10pm UTC](https://www.thethingsnetwork.org/forum/t/uplinks-drop-after-a-few-packets/72011 "2025-09-16T12:10:58Z")
Hi, I’m running a LoRaWAN node in AU915 on TTN (fsb 2). The hardware is an ESP32 and an SX1276 module using radiolib (7.2.1). On boot, joining works fine. I adapted the session restore example in the radiolib-persisten… --- ## [Non-invasive water meters](https://www.thethingsnetwork.org/forum/t/non-invasive-water-meters/70201)
**Author:** [@CNA](https://www.thethingsnetwork.org/forum/u/CNA)\ **Replies:** 2\ **Last updated:** [September 1, 2025, 6:52pm UTC](https://www.thethingsnetwork.org/forum/t/non-invasive-water-meters/70201 "2025-09-01T18:52:18Z")
Hello all, I’m searching for an easy-fitting, non-invasive Lora water meter. I’ve seen a few horror stories on the forum about the Nordic one so wanted to double check if anyone had any experience of the Quantify clamp-… --- ## [Raspberry Pi as LoRa wan node (send data to gateway to forward to TTN)](https://www.thethingsnetwork.org/forum/t/raspberry-pi-as-lora-wan-node-send-data-to-gateway-to-forward-to-ttn/68704)
**Author:** [@lakindu](https://www.thethingsnetwork.org/forum/u/lakindu)\ **Replies:** 10\ **Last updated:** [September 1, 2025, 5:07pm UTC](https://www.thethingsnetwork.org/forum/t/raspberry-pi-as-lora-wan-node-send-data-to-gateway-to-forward-to-ttn/68704 "2025-09-01T17:07:24Z")
I am using a Raspberry Pi Model 4b with SX1262 LoRa wan hat to send data to the RAK gateway which uploads data to TTN. I found some sample code that is called “Sx126x lorawan hat code” but after going through the code I… --- ## [GN: Unix Timestamp Synchronization](https://www.thethingsnetwork.org/forum/t/gn-unix-timestamp-synchronization/71986)
**Author:** [@josh\_hslu](https://www.thethingsnetwork.org/forum/u/josh_hslu)\ **Replies:** 4\ **Last updated:** [August 18, 2025, 12:25pm UTC](https://www.thethingsnetwork.org/forum/t/gn-unix-timestamp-synchronization/71986 "2025-08-18T12:25:32Z")
I’d like to update the timestamp on the Generic Node (GN). The goal is for the gateway to send a Unix timestamp to the GN, which would then store it in non-volatile memory. However, updating the GN’s local time isn’t st… --- ## [Can't get class C downlink to work](https://www.thethingsnetwork.org/forum/t/cant-get-class-c-downlink-to-work/72030)
**Author:** [@NordicNet](https://www.thethingsnetwork.org/forum/u/NordicNet)\ **Replies:** 0\ **Last updated:** [August 14, 2025, 6:53pm UTC](https://www.thethingsnetwork.org/forum/t/cant-get-class-c-downlink-to-work/72030 "2025-08-14T18:53:58Z")
Device watteco Outlet (EU with button) configured as class C Device have successfully been used in chirpstack and other servers GW1 - Things Indoor Gateway(TTIG) Been running on TTN for a long time and I receive uplink… --- ## [Any experience with WLR089? Having some trouble](https://www.thethingsnetwork.org/forum/t/any-experience-with-wlr089-having-some-trouble/45189)
**Author:** [@Basler](https://www.thethingsnetwork.org/forum/u/Basler)\ **Replies:** 16\ **Last updated:** [August 11, 2025, 4:31am UTC](https://www.thethingsnetwork.org/forum/t/any-experience-with-wlr089-having-some-trouble/45189 "2025-08-11T04:31:54Z")
Hi there! I’m using the WLR089 module ( https://www.microchip.com/wwwproducts/en/WLR089U0 ) on a self-made PCB. However, I had different kinds of trouble. Two modules had a low ohmic shortage and heated up… even after d… --- ## [Rx timeout](https://www.thethingsnetwork.org/forum/t/rx-timeout/71876)
**Author:** [@mazspork](https://www.thethingsnetwork.org/forum/u/mazspork)\ **Replies:** 6\ **Last updated:** [July 27, 2025, 8:13am UTC](https://www.thethingsnetwork.org/forum/t/rx-timeout/71876 "2025-07-27T08:13:53Z")
Novice here. I have looked through and tried solutions in the threads. I keep getting an rx timeout on the device (AB02S), and although the ttn console occasionally gets a connection the device never joins. I am running … --- ## [Basic Device Connections](https://www.thethingsnetwork.org/forum/t/basic-device-connections/45219)
**Author:** [@RemoteDatum](https://www.thethingsnetwork.org/forum/u/RemoteDatum)\ **Replies:** 39\ **Last updated:** [July 24, 2025, 8:04am UTC](https://www.thethingsnetwork.org/forum/t/basic-device-connections/45219 "2025-07-24T08:04:40Z")
Hi this is some pretty basic questions, for which I apologise in advance (i am a total, total newbie). I have installed Gemtek WAPS-232 Gateway and it shows up on the TTN no probs. I am having real issues connecting an… --- ## [Best lithium (Li-SOCl2) cells to power node?](https://www.thethingsnetwork.org/forum/t/best-lithium-li-socl2-cells-to-power-node/41152)
**Author:** [@JeroenvI](https://www.thethingsnetwork.org/forum/u/JeroenvI)\ **Replies:** 28\ **Last updated:** [July 15, 2025, 7:40am UTC](https://www.thethingsnetwork.org/forum/t/best-lithium-li-socl2-cells-to-power-node/41152 "2025-07-15T07:40:31Z")
Since some LoRaWAN sensor products use Li-SOCl2 (lithium thionyl chloride) and some hobbyists use these too: any experience out there which brand is best, for AA size (“14500”) cells? I’ve mostly seen Saft LS14500 and E… --- ## [RAK3172 is not getting registered as end device](https://www.thethingsnetwork.org/forum/t/rak3172-is-not-getting-registered-as-end-device/63715)
**Author:** [@suchitran](https://www.thethingsnetwork.org/forum/u/suchitran)\ **Replies:** 7\ **Last updated:** [July 13, 2025, 9:52am UTC](https://www.thethingsnetwork.org/forum/t/rak3172-is-not-getting-registered-as-end-device/63715 "2025-07-13T09:52:30Z")
We are using a RAK3172 on a custom PCB where we are using RAK3172 module as an end device and trying to register it on the TTNv3. After following the example thoroughly from starting to end as shown here I am getting th… --- ## [TTN v3 Class C support](https://www.thethingsnetwork.org/forum/t/ttn-v3-class-c-support/48743)
**Author:** [@aaronmcniven](https://www.thethingsnetwork.org/forum/u/aaronmcniven)\ **Replies:** 8\ **Last updated:** [July 1, 2025, 7:10pm UTC](https://www.thethingsnetwork.org/forum/t/ttn-v3-class-c-support/48743 "2025-07-01T19:10:05Z")
Hi I was wondering with v3 support, if I wipe my gateway firmware and switch from chirpstack back to TTN v3, can I now use Class C? And are there limitations? I have a gate that I need to be able to open randomly (but… --- ## [Changing interval on a Dragino LHT65N-E3](https://www.thethingsnetwork.org/forum/t/changing-interval-on-a-dragino-lht65n-e3/71731)
**Author:** [@trevorh7000](https://www.thethingsnetwork.org/forum/u/trevorh7000)\ **Replies:** 3\ **Last updated:** [June 29, 2025, 5:00pm UTC](https://www.thethingsnetwork.org/forum/t/changing-interval-on-a-dragino-lht65n-e3/71731 "2025-06-29T17:00:46Z")
Reading the manual for the LHT65N/S (closest I could get as I could not find one for the exact model I have) I found at about sending commands via downlink to set the interval No first chatgpt helped me by converting th… --- ## [Significant Discrepancy in LoRa Device Current Consumption (SX1261 and generic node)](https://www.thethingsnetwork.org/forum/t/significant-discrepancy-in-lora-device-current-consumption-sx1261-and-generic-node/71537)
**Author:** [@josh\_hslu](https://www.thethingsnetwork.org/forum/u/josh_hslu)\ **Replies:** 8\ **Last updated:** [June 17, 2025, 9:13am UTC](https://www.thethingsnetwork.org/forum/t/significant-discrepancy-in-lora-device-current-consumption-sx1261-and-generic-node/71537 "2025-06-17T09:13:23Z")
Hi, During power profiling, I discovered a surprising difference in current consumption between two LoRa devices: the generic node and a custom board (NUCLEO-L073RZ paired with the SX1261). The custom board uses the NU… --- ## [Update all end devices with same paramers in an application using ttn-lw-cli](https://www.thethingsnetwork.org/forum/t/update-all-end-devices-with-same-paramers-in-an-application-using-ttn-lw-cli/60623)
**Author:** [@gabbynero84](https://www.thethingsnetwork.org/forum/u/gabbynero84)\ **Replies:** 7\ **Last updated:** [June 6, 2025, 6:56pm UTC](https://www.thethingsnetwork.org/forum/t/update-all-end-devices-with-same-paramers-in-an-application-using-ttn-lw-cli/60623 "2025-06-06T18:56:17Z")
Is there a way I can update all my end devices with the same parameter in the same Application using the ttn-lw-cli without having to enter the same command for each device? I can use the list command to get all my end … --- ## [MIC mismatch on WIO-E5 module?](https://www.thethingsnetwork.org/forum/t/mic-mismatch-on-wio-e5-module/65386)
**Author:** [@ridgerunnersjw](https://www.thethingsnetwork.org/forum/u/ridgerunnersjw)\ **Replies:** 7\ **Last updated:** [June 13, 2025, 11:11am UTC](https://www.thethingsnetwork.org/forum/t/mic-mismatch-on-wio-e5-module/65386 "2025-06-13T11:11:29Z")
Good morning. I have a WIO-E5 module. When I monitor the node on TTN I consistently am receiving I have verified DevEUI and APPKEY. I have also verified that both firmware and node registered are using 1.0.3. I ha… --- ## [Restart Dragino LT-22222-L](https://www.thethingsnetwork.org/forum/t/restart-dragino-lt-22222-l/66062)
**Author:** [@g\_s](https://www.thethingsnetwork.org/forum/u/g_s)\ **Replies:** 3\ **Last updated:** [May 16, 2025, 12:22pm UTC](https://www.thethingsnetwork.org/forum/t/restart-dragino-lt-22222-l/66062 "2025-05-16T12:22:23Z")
Hello, I have a problem with a Dragino LT-22222-L. Is it possible to restart the LT-22222-L using Payload Uplink? The analog values ​​are no longer displayed correctly. Thanks you for your help Gregor --- ## [Extracting history from Dragino devices (like PS-LB) - gap filling time-series](https://www.thethingsnetwork.org/forum/t/extracting-history-from-dragino-devices-like-ps-lb-gap-filling-time-series/71332)
**Author:** [@cb9dec](https://www.thethingsnetwork.org/forum/u/cb9dec)\ **Replies:** 2\ **Last updated:** [May 10, 2025, 11:10am UTC](https://www.thethingsnetwork.org/forum/t/extracting-history-from-dragino-devices-like-ps-lb-gap-filling-time-series/71332 "2025-05-10T11:10:17Z")
Hello all, I’m hoping for a bit of help if anybody has had experience with this. I’m using a Dragino PS-LB (which is a liquid pressure sensor). I’ve got a reasonable understanding of the device but like all LoRaWAN setup… --- ## [What defines the maximum payload size and transmission time? (AU915)](https://www.thethingsnetwork.org/forum/t/what-defines-the-maximum-payload-size-and-transmission-time-au915/71299)
**Author:** [@ElectronicallyE](https://www.thethingsnetwork.org/forum/u/ElectronicallyE)\ **Replies:** 13\ **Last updated:** [May 7, 2025, 9:35am UTC](https://www.thethingsnetwork.org/forum/t/what-defines-the-maximum-payload-size-and-transmission-time-au915/71299 "2025-05-07T09:35:40Z")
A number of forum posts talk about the maximum permitted payload size, however, don’t discuss why there is a limit: Maximum “Universal” Application Payload Size - End Devices (Nodes) - The Things Network How to Find Ma… --- ## [Delete end device in (other cluster)](https://www.thethingsnetwork.org/forum/t/delete-end-device-in-other-cluster/71265)
**Author:** [@wrats](https://www.thethingsnetwork.org/forum/u/wrats)\ **Replies:** 1\ **Last updated:** [May 1, 2025, 7:19pm UTC](https://www.thethingsnetwork.org/forum/t/delete-end-device-in-other-cluster/71265 "2025-05-01T19:19:23Z")
I was changing the settings in the network server address from our local server address to the things network address, the device has now greyed out and has the last activity as - Other Cluster. I cannot open the dev… --- ## [Victron VE.Direct Lorawan problem register](https://www.thethingsnetwork.org/forum/t/victron-ve-direct-lorawan-problem-register/71262)
**Author:** [@chris50](https://www.thethingsnetwork.org/forum/u/chris50)\ **Replies:** 0\ **Last updated:** [April 30, 2025, 5:46pm UTC](https://www.thethingsnetwork.org/forum/t/victron-ve-direct-lorawan-problem-register/71262 "2025-04-30T17:46:23Z")
Good morning, I’m having a problem. I opened an account on VRM Portal and an account on TTN. It is not possible to record direct V.E without having added it to VRM but for this you absolutely must have a VICTRON GX dev… --- ## [Devnonce is too small error while switching end nodes in TTN](https://www.thethingsnetwork.org/forum/t/devnonce-is-too-small-error-while-switching-end-nodes-in-ttn/71195)
**Author:** [@gtmahesh](https://www.thethingsnetwork.org/forum/u/gtmahesh)\ **Replies:** 2\ **Last updated:** [April 22, 2025, 9:56am UTC](https://www.thethingsnetwork.org/forum/t/devnonce-is-too-small-error-while-switching-end-nodes-in-ttn/71195 "2025-04-22T09:56:44Z")
hi guys, I am experiencing an issue related to the “devnonce is too small” error. When I attempt to switch end nodes in the TTN network, I change the end node network keys (such as Join EUI, Dev EUI, and App Key) throug… --- ## [TTN devnonce is too small error](https://www.thethingsnetwork.org/forum/t/ttn-devnonce-is-too-small-error/71186)
**Author:** [@gtmahesh](https://www.thethingsnetwork.org/forum/u/gtmahesh)\ **Replies:** 2\ **Last updated:** [April 21, 2025, 1:35pm UTC](https://www.thethingsnetwork.org/forum/t/ttn-devnonce-is-too-small-error/71186 "2025-04-21T13:35:48Z")
Hi Team, I am facing some issues with the LoRaWAN MAC layer version 1.0.4. I have registered and called the store context function, but I am still having trouble switching the end nodes in the TTN server. Additionally, … [Previous page](https://www.thethingsnetwork.org/forum/c/nodes/7.md?no_subcategories=false) [Next page](https://www.thethingsnetwork.org/forum/c/nodes/7.md?no_subcategories=false&page=2)