# End Devices (Nodes) **URL:** https://www.thethingsnetwork.org/forum/c/nodes/7.md?no_subcategories=false [Latest](https://www.thethingsnetwork.org/forum/latest.md) · [Categories](https://www.thethingsnetwork.org/forum/categories.md) · [Tags](https://www.thethingsnetwork.org/forum/tags.md) --- ## [Fair Use Policy explained](https://www.thethingsnetwork.org/forum/t/fair-use-policy-explained/1300)
**Author:** [@arjanvanb](https://www.thethingsnetwork.org/forum/u/arjanvanb)\ **Replies:** 50\ **Last updated:** [May 10, 2019, 6:41am UTC](https://www.thethingsnetwork.org/forum/t/fair-use-policy-explained/1300 "2019-05-10T06:41:38Z")
For The Things Network’s public community network the Fair Access Policy limits the data each end-device can send, by allowing: An average of 30 seconds uplink time on air, per 24 hours, per device. At most 10 downlink… --- ## [About the End Devices (Nodes) category](https://www.thethingsnetwork.org/forum/t/about-the-end-devices-nodes-category/14)
**Author:** [@wienkegiezeman](https://www.thethingsnetwork.org/forum/u/wienkegiezeman)\ **Replies:** 0\ **Last updated:** [September 8, 2015, 8:32am UTC](https://www.thethingsnetwork.org/forum/t/about-the-end-devices-nodes-category/14 "2015-09-08T08:32:32Z")
LoRaWAN end devices, also known as nodes. Use this category for everything related to LoRaWAN End Devices aka Nodes but only if a relevant subcategory does not exist. If a relevant subcategory exists use that instead. --- ## [Wrong reading of LDDS 75](https://www.thethingsnetwork.org/forum/t/wrong-reading-of-ldds-75/53316)
**Author:** [@0815](https://www.thethingsnetwork.org/forum/u/0815)\ **Replies:** 5\ **Last updated:** [September 22, 2026, 4:18pm UTC](https://www.thethingsnetwork.org/forum/t/wrong-reading-of-ldds-75/53316 "2026-09-22T16:18:00Z")
Hello, I’m not sure if this is the right corner of this forum but I hope so. I installed a Dragino LDDS75 ultrasonic sensor a few days ago. At first, everything worked fine but now I have the problem that it sends weird… --- ## [Dragino DG-LHT65N shows only bytes in live data](https://www.thethingsnetwork.org/forum/t/dragino-dg-lht65n-shows-only-bytes-in-live-data/72958)
**Author:** [@kleeberg](https://www.thethingsnetwork.org/forum/u/kleeberg)\ **Replies:** 3\ **Last updated:** [August 16, 2026, 5:35pm UTC](https://www.thethingsnetwork.org/forum/t/dragino-dg-lht65n-shows-only-bytes-in-live-data/72958 "2026-08-16T17:35:41Z")
Hello, I had the Dragino DG-LHT65N-868-E3 temperature/humidity sensor actively integrated into my home automation system for about a year, and the sensor worked well and correctly displayed three entities (indoor tempera… --- ## [TTN Mapper payload decode problem](https://www.thethingsnetwork.org/forum/t/ttn-mapper-payload-decode-problem/59485)
**Author:** [@littleplumbbob](https://www.thethingsnetwork.org/forum/u/littleplumbbob)\ **Replies:** 1\ **Last updated:** [August 9, 2026, 9:37am UTC](https://www.thethingsnetwork.org/forum/t/ttn-mapper-payload-decode-problem/59485 "2026-08-09T09:37:39Z")
I have a Tbeam running GitHub - kizniche/ttgo-tbeam-ttn-tracker: TTGO T-Beam Tracker for TTN Mapper and TTN Tracker using US (915 MHz) and EU (868 MHz) frequencies It seems to be working and I get a payload showing up i… --- ## [Orphaned Device from Deleted Application - Unable to Re-register](https://www.thethingsnetwork.org/forum/t/orphaned-device-from-deleted-application-unable-to-re-register/73678)
**Author:** [@agroxis](https://www.thethingsnetwork.org/forum/u/agroxis)\ **Replies:** 6\ **Last updated:** [August 7, 2026, 10:27am UTC](https://www.thethingsnetwork.org/forum/t/orphaned-device-from-deleted-application-unable-to-re-register/73678 "2026-08-07T10:27:44Z")
Hello, I’m experiencing an issue with orphaned devices from a deleted application blocking new device registrations. Situation: Deleted application: ct74e3bbe8641245889a57cbc6c1d15f2b Orphaned device still regist… --- ## [MicroPython-LoRaWAN (nunomcruz)](https://www.thethingsnetwork.org/forum/t/micropython-lorawan-nunomcruz/73958)
**Author:** [@Somsak](https://www.thethingsnetwork.org/forum/u/Somsak)\ **Replies:** 6\ **Last updated:** [August 4, 2026, 10:45am UTC](https://www.thethingsnetwork.org/forum/t/micropython-lorawan-nunomcruz/73958 "2026-08-04T10:45:28Z")
Hardware: 1.TTGO Tbeam V.1.1 LoRa 32 SX1276 AS923 2.TTGO Tbeam V.1.2 LoRa 32 SX1276 AS923 Firmware: GitHub - nunomcruz/micropython-lorawan: MicroPython with LoRaWAN support · GitHub I build my firmware v.1.5.3-lorawa… --- ## [Error when logging in https://id.thethingsnetwork.org/](https://www.thethingsnetwork.org/forum/t/error-when-logging-in-https-id-thethingsnetwork-org/73968)
**Author:** [@alexkellyTBG](https://www.thethingsnetwork.org/forum/u/alexkellyTBG)\ **Replies:** 0\ **Last updated:** [July 20, 2026, 2:15pm UTC](https://www.thethingsnetwork.org/forum/t/error-when-logging-in-https-id-thethingsnetwork-org/73968 "2026-07-20T14:15:03Z")
why am i getting logging in : Session not found error Interaction session not found If the error persists, please report it via our Forum or Slack. Error details: Request path: /oidc/interaction/iFngTYhy4cV97rZ2\_H5t… --- ## [LHT65N datalog auto recovery issue](https://www.thethingsnetwork.org/forum/t/lht65n-datalog-auto-recovery-issue/73936)
**Author:** [@cooltag\_hw](https://www.thethingsnetwork.org/forum/u/cooltag_hw)\ **Replies:** 2\ **Last updated:** [July 14, 2026, 12:50pm UTC](https://www.thethingsnetwork.org/forum/t/lht65n-datalog-auto-recovery-issue/73936 "2026-07-14T12:50:47Z")
Summary As stated in Dragino website user guide on LHT65N (link), by enabling SYNCMOD=1(Default) and PNACKMD=1, “In a future uplink if LHT65N/S gets a ACK, LHT65N/S will consider there is a network connection and resend… --- ## [8 default symbols in LoRa payload, What do they represent?](https://www.thethingsnetwork.org/forum/t/8-default-symbols-in-lora-payload-what-do-they-represent/7319)
**Author:** [@assia\_b](https://www.thethingsnetwork.org/forum/u/assia_b)\ **Replies:** 10\ **Last updated:** [June 30, 2026, 6:11pm UTC](https://www.thethingsnetwork.org/forum/t/8-default-symbols-in-lora-payload-what-do-they-represent/7319 "2026-06-30T18:11:14Z")
Continuing the discussion from Spreadsheet for LoRa airtime calculation: After searching everywhere on Semtech's documents ,LoRa calculator, and the LoRaWAN specifications. I still don't understand why a Payload has at l… --- ## [Dragino RS485-LN + ABB Meter: Getting Modbus Timeout (Empty Payload) on Uplink](https://www.thethingsnetwork.org/forum/t/dragino-rs485-ln-abb-meter-getting-modbus-timeout-empty-payload-on-uplink/73788)
**Author:** [@enytosmado](https://www.thethingsnetwork.org/forum/u/enytosmado)\ **Replies:** 1\ **Last updated:** [June 11, 2026, 9:33am UTC](https://www.thethingsnetwork.org/forum/t/dragino-rs485-ln-abb-meter-getting-modbus-timeout-empty-payload-on-uplink/73788 "2026-06-11T09:33:17Z")
Hi everyone, I am currently troubleshooting a remote setup using a Dragino RS485-LN connected to an ABB Energy Meter via Modbus RTU. The LoRaWAN connection itself is rock solid (great SNR and RSSI), but I keep getting c… --- ## [Heltec LoRa WiFi v4 not ever seen](https://www.thethingsnetwork.org/forum/t/heltec-lora-wifi-v4-not-ever-seen/73757)
**Author:** [@cyriltts](https://www.thethingsnetwork.org/forum/u/cyriltts)\ **Replies:** 11\ **Last updated:** [June 3, 2026, 6:11pm UTC](https://www.thethingsnetwork.org/forum/t/heltec-lora-wifi-v4-not-ever-seen/73757 "2026-06-03T18:11:43Z")
Long story short I had a working v3 Heltec board on TTN that I fried. I thought I’d upgrade to the latest v4. I’m using the exact same configuration but no matter what I do, there’s no reply ever from the Gateways. Nothi… --- ## [\[solved\] Heltec HRI 4851L - ModBUS to LoRaWAN gateway - Payload Formatter for TTN](https://www.thethingsnetwork.org/forum/t/solved-heltec-hri-4851l-modbus-to-lorawan-gateway-payload-formatter-for-ttn/73635)
**Author:** [@drsash](https://www.thethingsnetwork.org/forum/u/drsash)\ **Replies:** 0\ **Last updated:** [May 13, 2026, 7:07pm UTC](https://www.thethingsnetwork.org/forum/t/solved-heltec-hri-4851l-modbus-to-lorawan-gateway-payload-formatter-for-ttn/73635 "2026-05-13T19:07:50Z")
Hi, these devices seem be barely in use, which i dont understand since they are really handy devices when it comes to ModBUS in no WIFI areas. They are simply esp32 units in a DIN rail case. Since the documentation is … --- ## [Browan Tabs TBMS100 nodes (formerly Tracknet)](https://www.thethingsnetwork.org/forum/t/browan-tabs-tbms100-nodes-formerly-tracknet/73614)
**Author:** [@cdh1001](https://www.thethingsnetwork.org/forum/u/cdh1001)\ **Replies:** 0\ **Last updated:** [May 11, 2026, 10:55am UTC](https://www.thethingsnetwork.org/forum/t/browan-tabs-tbms100-nodes-formerly-tracknet/73614 "2026-05-11T10:55:21Z")
I’ve some Browan Tabs TMBS100 PIR sensors. Does anyone know if the IPEX connector on the reverse is for Lora, or redundant GPS from a generic board? If the former, what needs to be done to use this instead of the interna… --- ## [IP67 Temperature sensor recomendations?](https://www.thethingsnetwork.org/forum/t/ip67-temperature-sensor-recomendations/73217)
**Author:** [@kayakpete](https://www.thethingsnetwork.org/forum/u/kayakpete)\ **Replies:** 6\ **Last updated:** [May 4, 2026, 6:14pm UTC](https://www.thethingsnetwork.org/forum/t/ip67-temperature-sensor-recomendations/73217 "2026-05-04T18:14:57Z")
Greetings. We have been monitoring our snowmelt system with home-brewed sensors for a few years now. It’s time to retire the hardware and replace it with a more robust, commercially available option. I’m seeking advic… --- ## [Micropython with LoRaWAN support](https://www.thethingsnetwork.org/forum/t/micropython-with-lorawan-support/73571)
**Author:** [@ncruz](https://www.thethingsnetwork.org/forum/u/ncruz)\ **Replies:** 5\ **Last updated:** [May 3, 2026, 10:18pm UTC](https://www.thethingsnetwork.org/forum/t/micropython-with-lorawan-support/73571 "2026-05-03T22:18:55Z")
Hi all, I have been using micropython from Pycom with my patch for TTGO T-Beam devices for a long time. Since Pycom has long gone I got fed up and added the latest semtec driver to the latest micropython release. It’s … --- ## [Abeeway Microtracker Decoder](https://www.thethingsnetwork.org/forum/t/abeeway-microtracker-decoder/22473)
**Author:** [@thomassieczkowski](https://www.thethingsnetwork.org/forum/u/thomassieczkowski)\ **Replies:** 18\ **Last updated:** [May 3, 2026, 6:59am UTC](https://www.thethingsnetwork.org/forum/t/abeeway-microtracker-decoder/22473 "2026-05-03T06:59:51Z")
Hi there. I’ve been struggling on getting the Abeeway Microtracker decoded. Unfortunately, the manufacturer does not share its decoder to buyers. Here is what I have in terms of material: A work in progress by @floden… --- ## [World Record - TTNMapper errors?](https://www.thethingsnetwork.org/forum/t/world-record-ttnmapper-errors/73378)
**Author:** [@waffles6767](https://www.thethingsnetwork.org/forum/u/waffles6767)\ **Replies:** 2\ **Last updated:** [May 2, 2026, 3:35pm UTC](https://www.thethingsnetwork.org/forum/t/world-record-ttnmapper-errors/73378 "2026-05-02T15:35:12Z")
I first heard about LoraWAN through a FLAT EARTHER (sorry!) posting about the world record 1336 km record from Portugal to the Canary islands. I understand tropospheric ducting, and am aware that it is particularly stro… --- ## [Water butt level measurement advice?](https://www.thethingsnetwork.org/forum/t/water-butt-level-measurement-advice/72301)
**Author:** [@johnconnett](https://www.thethingsnetwork.org/forum/u/johnconnett)\ **Replies:** 17\ **Last updated:** [April 24, 2026, 5:05pm UTC](https://www.thethingsnetwork.org/forum/t/water-butt-level-measurement-advice/72301 "2026-04-24T17:05:55Z")
I volunteer at a community orchard where we have recently installed an Ecosure1450 Litre Water Tank. We currently harvest rainwater from the roof of the doctors’ surgery / pharmacy building next door. The initial setup m… --- ## [No live data for ABP end device, reciving on gateway](https://www.thethingsnetwork.org/forum/t/no-live-data-for-abp-end-device-reciving-on-gateway/73502)
**Author:** [@giorgiloralora](https://www.thethingsnetwork.org/forum/u/giorgiloralora)\ **Replies:** 6\ **Last updated:** [April 16, 2026, 2:51pm UTC](https://www.thethingsnetwork.org/forum/t/no-live-data-for-abp-end-device-reciving-on-gateway/73502 "2026-04-16T14:51:11Z")
Hello, I have problem with not seeing live data for an end device, while reciving data in the gateway. I am using waveshare sx1303 868m lorawan gateway with raspberry pi 4 and as an end device I have ra-01h ai thinker c… --- ## [ESP32 & SX1262 Radio - working?](https://www.thethingsnetwork.org/forum/t/esp32-sx1262-radio-working/73111)
**Author:** [@PeterH61](https://www.thethingsnetwork.org/forum/u/PeterH61)\ **Replies:** 15\ **Last updated:** [March 25, 2026, 5:43pm UTC](https://www.thethingsnetwork.org/forum/t/esp32-sx1262-radio-working/73111 "2026-03-25T17:43:10Z")
I’ve been running an ESP8266 and SX1276 for my greenhouse data for two years now (OTAA). I now need to switch to an ESP32 (more I/Os) and an SX1262. Has anyone already got this pair working under the Arduino IDE Radiol… --- ## [Milesight UC100 Decoder with History Processing](https://www.thethingsnetwork.org/forum/t/milesight-uc100-decoder-with-history-processing/73340)
**Author:** [@lora-sense](https://www.thethingsnetwork.org/forum/u/lora-sense)\ **Replies:** 0\ **Last updated:** [March 12, 2026, 2:27pm UTC](https://www.thethingsnetwork.org/forum/t/milesight-uc100-decoder-with-history-processing/73340 "2026-03-12T14:27:30Z")
I have created a Milesight UC100 formatter, by editing the original script from Milesight. It works on its own and with the history turned on in the device. I hope it helps: Feel free to use it or do what you want w… --- ## [SenseCAP T1000-E for LoRaWAN?](https://www.thethingsnetwork.org/forum/t/sensecap-t1000-e-for-lorawan/73280)
**Author:** [@dd0ul](https://www.thethingsnetwork.org/forum/u/dd0ul)\ **Replies:** 2\ **Last updated:** [March 4, 2026, 7:38am UTC](https://www.thethingsnetwork.org/forum/t/sensecap-t1000-e-for-lorawan/73280 "2026-03-04T07:38:52Z")
Hi, I’m running a gateway and was able to successfully register it with TTN. At least that’s something. I bought two SenseCAP T1000-E for LoRaWAN tracker and don’t know how to register them. The TTN form asks for the J… --- ## [Looking for help with ESP32 + SX1276](https://www.thethingsnetwork.org/forum/t/looking-for-help-with-esp32-sx1276/56185)
**Author:** [@bolt\_test](https://www.thethingsnetwork.org/forum/u/bolt_test)\ **Replies:** 20\ **Last updated:** [January 29, 2026, 9:38am UTC](https://www.thethingsnetwork.org/forum/t/looking-for-help-with-esp32-sx1276/56185 "2026-01-29T09:38:50Z")
Hi ,I am working with the ESP32 and SX1276 module. Uplink is working properly . While doing downlink from the application in things network (Message-\>downlink option in the end node option in App) .The end node is not r… --- ## [SlimLoRa library for arduino - EU863 basic functionality - testers wanted](https://www.thethingsnetwork.org/forum/t/slimlora-library-for-arduino-eu863-basic-functionality-testers-wanted/64330)
**Author:** [@clv](https://www.thethingsnetwork.org/forum/u/clv)\ **Replies:** 26\ **Last updated:** [January 28, 2026, 11:03am UTC](https://www.thethingsnetwork.org/forum/t/slimlora-library-for-arduino-eu863-basic-functionality-testers-wanted/64330 "2026-01-28T11:03:35Z")
Hello there, after two years of absence the last month I think I resurrected the SlimLoRa library. ADR works and other MAC commands like RX1 delay. You have a featrher32u4? I would like verification of what works or be… --- ## [Dragino LHT52 doesn't join to the network](https://www.thethingsnetwork.org/forum/t/dragino-lht52-doesnt-join-to-the-network/73021)
**Author:** [@ytzlax](https://www.thethingsnetwork.org/forum/u/ytzlax)\ **Replies:** 5\ **Last updated:** [January 16, 2026, 7:48am UTC](https://www.thethingsnetwork.org/forum/t/dragino-lht52-doesnt-join-to-the-network/73021 "2026-01-16T07:48:33Z")
Hi all, Over the last few months, I’ve been learning about LoRa, LoRaWAN, and TTN, and it’s been very exciting. I bought a Dragino LHT52 sensor and registered it in the TTN Console and physicaly installed it in Amsterd… --- ## [DRAGINO problems and solutions topic part 2](https://www.thethingsnetwork.org/forum/t/dragino-problems-and-solutions-topic-part-2/19143)
**Author:** [@BoRRoZ](https://www.thethingsnetwork.org/forum/u/BoRRoZ)\ **Replies:** 121\ **Last updated:** [December 16, 2025, 8:34am UTC](https://www.thethingsnetwork.org/forum/t/dragino-problems-and-solutions-topic-part-2/19143 "2025-12-16T08:34:28Z")
this topic is to share information about all the DRAGINO problems and solutions. part 1 is HERE http://wiki.dragino.com/index.php?title=Lora/GPS\_HAT http://wiki.dragino.com/index.php?title=Connect\_to\_TTN search ‘dragi… --- ## [Milesight LoraWan IoT sensor WS50x goes to inactive intermittedly for hours](https://www.thethingsnetwork.org/forum/t/milesight-lorawan-iot-sensor-ws50x-goes-to-inactive-intermittedly-for-hours/72654)
**Author:** [@khukhu](https://www.thethingsnetwork.org/forum/u/khukhu)\ **Replies:** 1\ **Last updated:** [November 21, 2025, 11:28am UTC](https://www.thethingsnetwork.org/forum/t/milesight-lorawan-iot-sensor-ws50x-goes-to-inactive-intermittedly-for-hours/72654 "2025-11-21T11:28:21Z")
IMPORTANT BEFORE POSTING: Check the Learn section: https://www.thethingsnetwork.org/docs/lorawan/ Check the Stack documentation: https://www.thethingsindustries.com/docs/ Make sure you’ve searched the forum: https://ww… --- ## [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… [Next page](https://www.thethingsnetwork.org/forum/c/nodes/7.md?no_subcategories=false&page=1)