# \#lmic

**URL:** https://www.thethingsnetwork.org/forum/tag/lmic/30.md

[Latest](https://www.thethingsnetwork.org/forum/latest.md) · [Categories](https://www.thethingsnetwork.org/forum/categories.md) · [Tags](https://www.thethingsnetwork.org/forum/tags.md)

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## [LMIC Library For STM32](https://www.thethingsnetwork.org/forum/t/lmic-library-for-stm32/61263)

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**Author:** [@saishiva\_reddy\_gatla](https://www.thethingsnetwork.org/forum/u/saishiva_reddy_gatla)\
**Replies:** 2\
**Last updated:** [July 24, 2024, 10:01am UTC](https://www.thethingsnetwork.org/forum/t/lmic-library-for-stm32/61263 "2024-07-24T10:01:45Z")

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Hi Everyone, I am working on IoT Project that has to send the data to Gateway and then to TTN. So, I have found that there is a Library called LMIC developed for Arduino, But Can I use that for Stm32 in STM32CubeIDE. Co…

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## [SX1276 on Arduino Uno R3 can't join TTN via OTAA](https://www.thethingsnetwork.org/forum/t/sx1276-on-arduino-uno-r3-cant-join-ttn-via-otaa/68697)

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**Author:** [@benjaminm](https://www.thethingsnetwork.org/forum/u/benjaminm)\
**Replies:** 11\
**Last updated:** [July 23, 2024, 9:50am UTC](https://www.thethingsnetwork.org/forum/t/sx1276-on-arduino-uno-r3-cant-join-ttn-via-otaa/68697 "2024-07-23T09:50:35Z")

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Hi, I’m trying to connect an SX1276 (from Amazon.de) on Arduino Uno R3 to TTN via OTAA but in the console there is no activity. There already exist similar topics but nothing helped me. I use the “MCCI LoRaWAN LMIC li…

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## [Heltec LMIC-node battery powered](https://www.thethingsnetwork.org/forum/t/heltec-lmic-node-battery-powered/65350)

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**Author:** [@grizzlyalleyne](https://www.thethingsnetwork.org/forum/u/grizzlyalleyne)\
**Replies:** 10\
**Last updated:** [December 8, 2023, 10:14pm UTC](https://www.thethingsnetwork.org/forum/t/heltec-lmic-node-battery-powered/65350 "2023-12-08T22:14:56Z")

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Project: LMIC-node example meant to send a current geophone reading as well as the current GPS location to my Things Network application. I am using the Heltec Lora32 V2 board with a GPS module and a 16-bit ADC (ADS111…

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## ["Successfully scheduled join accept for transmission" doesn't appear in console](https://www.thethingsnetwork.org/forum/t/successfully-scheduled-join-accept-for-transmission-doesnt-appear-in-console/65821)

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**Author:** [@drz](https://www.thethingsnetwork.org/forum/u/drz)\
**Replies:** 20\
**Last updated:** [December 7, 2023, 1:04am UTC](https://www.thethingsnetwork.org/forum/t/successfully-scheduled-join-accept-for-transmission-doesnt-appear-in-console/65821 "2023-12-07T01:04:18Z")

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Hello everybody, I am new to the Things Network. We have a problem in the following situation: For our custom board we use an ATmega328PB as Lora node controller. → ATmega328PB → rmf95W module → library: mcci-cat…

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## [Unknown issue with LMIC / ESP32](https://www.thethingsnetwork.org/forum/t/unknown-issue-with-lmic-esp32/65574)

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**Author:** [@suphika](https://www.thethingsnetwork.org/forum/u/suphika)\
**Replies:** 6\
**Last updated:** [November 22, 2023, 1:57am UTC](https://www.thethingsnetwork.org/forum/t/unknown-issue-with-lmic-esp32/65574 "2023-11-22T01:57:13Z")

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I need help I use the library MCCI LoRaWAN LMIC Library With board ESP32-Wrover. The result is no data sent to TTN Application and when I apply that is used Arduino code Show results that the Unsupported Board. …

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## [After Callback not received, it is no more possible to send](https://www.thethingsnetwork.org/forum/t/after-callback-not-received-it-is-no-more-possible-to-send/65143)

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**Author:** [@HeinzFischer](https://www.thethingsnetwork.org/forum/u/HeinzFischer)\
**Replies:** 4\
**Last updated:** [October 12, 2023, 8:10pm UTC](https://www.thethingsnetwork.org/forum/t/after-callback-not-received-it-is-no-more-possible-to-send/65143 "2023-10-12T20:10:19Z")

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Hello My problem is not that it doesn’t receive the callback but that you can’t send after that. I have the problem that after sending out a message with: if (LMIC.opmode & OP\_TXRXPEND) { Serial2.print…

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## [Error in connecting an Arduino MKRWAN 1300 to TTN](https://www.thethingsnetwork.org/forum/t/error-in-connecting-an-arduino-mkrwan-1300-to-ttn/64042)

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**Author:** [@jhayancelacson](https://www.thethingsnetwork.org/forum/u/jhayancelacson)\
**Replies:** 5\
**Last updated:** [July 28, 2023, 8:55am UTC](https://www.thethingsnetwork.org/forum/t/error-in-connecting-an-arduino-mkrwan-1300-to-ttn/64042 "2023-07-28T08:55:58Z")

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I have created a LoRa node and gateway and have already registered my gateway to TTN. However, I can’t seem to connect my node. I use an Arduino MKRWAN 1300. I keep getting the “Something went wrong; are you indoor? Mov…

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## [Join request received by gateway but not on console](https://www.thethingsnetwork.org/forum/t/join-request-received-by-gateway-but-not-on-console/64003)

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**Author:** [@egzi](https://www.thethingsnetwork.org/forum/u/egzi)\
**Replies:** 13\
**Last updated:** [July 20, 2023, 9:48am UTC](https://www.thethingsnetwork.org/forum/t/join-request-received-by-gateway-but-not-on-console/64003 "2023-07-20T09:48:21Z")

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Hi. Gateway console shows received uplink join messages, I can successfully decode message payload using AppKey so all keys seem to be setup correctly on the node. The application console doesn’t show any received mess…

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## [Sometime, disconnect between Esp32 and gateway by use LMIC.h](https://www.thethingsnetwork.org/forum/t/sometime-disconnect-between-esp32-and-gateway-by-use-lmic-h/62240)

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**Author:** [@saratwadee](https://www.thethingsnetwork.org/forum/u/saratwadee)\
**Replies:** 5\
**Last updated:** [April 5, 2023, 6:24am UTC](https://www.thethingsnetwork.org/forum/t/sometime-disconnect-between-esp32-and-gateway-by-use-lmic-h/62240 "2023-04-05T06:24:26Z")

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Hi everyone. I have problem about sometime disconnect between esp32 and gateway by use LMIC.h. Now, i cannot solve the problem. can we recommend me or explain this problem what cause? and how to solve? I need to explai…

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## [MCCI LMIC payload not received by TTN or node is not sending (AS923Mhz)](https://www.thethingsnetwork.org/forum/t/mcci-lmic-payload-not-received-by-ttn-or-node-is-not-sending-as923mhz/60638)

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**Author:** [@erfan\_mahmud](https://www.thethingsnetwork.org/forum/u/erfan_mahmud)\
**Replies:** 15\
**Last updated:** [January 2, 2023, 11:28am UTC](https://www.thethingsnetwork.org/forum/t/mcci-lmic-payload-not-received-by-ttn-or-node-is-not-sending-as923mhz/60638 "2023-01-02T11:28:14Z")

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Hello developers, I am using Arduino pro mini and RA-01H containing SX1276 to develop a node device. I am using Arduino IDE; the library is MCCI Arduino LoRAWAN library(latest version). I successfully connected the node…

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## [MSP430 LMIC library porting](https://www.thethingsnetwork.org/forum/t/msp430-lmic-library-porting/58151)

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**Author:** [@mirko-newcastledemo](https://www.thethingsnetwork.org/forum/u/mirko-newcastledemo)\
**Replies:** 6\
**Last updated:** [August 4, 2022, 1:50pm UTC](https://www.thethingsnetwork.org/forum/t/msp430-lmic-library-porting/58151 "2022-08-04T13:50:46Z")

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Hi there, I’m trying to port this IBM LMIC library to the MSP430 platform. I have implemented the HAL but I’m struggling to get the timing correctly. The library is somehow working, I can see some “Receive uplink messa…

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## [ATmega4808 and Nano Every 4808 modules](https://www.thethingsnetwork.org/forum/t/atmega4808-and-nano-every-4808-modules/56536)

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**Author:** [@GryKyo](https://www.thethingsnetwork.org/forum/u/GryKyo)\
**Replies:** 3\
**Last updated:** [April 23, 2022, 6:05am UTC](https://www.thethingsnetwork.org/forum/t/atmega4808-and-nano-every-4808-modules/56536 "2022-04-23T06:05:16Z")

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I received some of these Nano Every 4808 modules in this morning’s mail. I have been struggling with MCCI LMIC on 328P nodes and use a deprocated library for any nodes on TTN V3. I can still register a node this way. W…
