Questions tagged [lorawan]

For questions about LoRaWAN, a network protocol for low-power long-range applications.

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27 views

LoRaWAN device leaving a network and then coming back... what Join behavior to expect?

For smart-city or industrial campus type of projects, there are devices that leave the network for e.g. 2 days (worker leaving on a week-end), and then come back... but they might remain disconnected ...
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2answers
34 views

LoRaWAN backhaul overheads over satellite or cellular

LoRaWAN is optimized for the constrained LoRa physical layer, however the gateways add their own overheads when relaying LoRaWAN frames to/from the network servers, and there is also trafic related to ...
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1answer
55 views

What are the datarate and ADR best practices for moving objects

For static objects, LoRaWAN has a very neat 'Adaptive Datarate (ADR)' feature that is key to the scalability of the protocol, it allows the network server to select the fastest uplink datarate ...
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2answers
49 views

The impact of LoRaWAN repeated transmissions

The LoRaWAN spec defines the LinkADRReq MAC command with a field (NbTrans) specifying the number of requested repeated transmissions of every frame. Actility claims that their ADRv3 algorythm uses ...
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1answer
45 views

Location Solver with LoRaWAN trackers

We use Abeeway Compact Trackers connected via a ThingPark powered LoRaWAN network to track pallets. Our Application Server receives and decodes messages and stores the location coordinates in a DB so ...
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1answer
37 views

LoRaWAN end-to-end security with Over The Air Activation

We are planning to connect several thousands of door opening and other home security sensors to a public LoRaWAN network country-wide, but our concern is, that in theory our public LoRaWAN network ...
2
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1answer
55 views

Firmware update over a LoRaWAN network

We are planning to connect several thousands of LoRaWAN connected water meters. The expected battery life time is 8+ years. Our concern is that meter suppliers are releasing new firmware version ...
2
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1answer
32 views

LoRaWAN roaming for overlapping networks

Why shall we consider having a LoRaWAN roaming agreement with another LoRaWAN network operator that has partly overlapping network coverage with our network? Our end devices are fixed (e.g.: water ...
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1answer
59 views

(Re)Joining existing Lora-wan end-devices to another network server

We are moving our Lora-wan gateways and end-device from Loriot to another opensource network server. But we are experiencing problems with some of our devices, when trying to rejoin using OTAA. What ...
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4answers
48 views

Sending LoRa packets using LoRaWAN sensor device

I would like to measure temperatures using a LoRa device and establish a point-to-point connection with another LoRa compatible device. However, the only appropriate temperature sensors use LoRaWAN, ...
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1answer
104 views

LoRa point-to-point communication

I would like to create a point-to-point connection between a LoRa temperature sensor and a M5 Stack (ESP32) with LoRa module. However, I am a beginner with LoRa, so I have a few questions: Are all ...
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3answers
100 views

LoRaWAN collision and demodulation

In what scenario is it possible that collision happens between two packets. And if a collision happens, is it possible to demodulate? How? Regarding here it says there are two types of interference. ...
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1answer
129 views

How to Control electric motor with Lora and microcontroller

The idea is to control a water pump that uses an induction motor. By control I simply mean to turn on and off the motor of the water pump. The setup includes a Lora gateway that transmits the desired ...
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1answer
85 views

Using LoRa as a www link

I am new to IoT and LoRa, and still trying to grasp the scope and capabilities after discovering a whole technology I never knew existed. I have read some about LoRaWan and IoT, but am confused about ...
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1answer
193 views

How to increase the Lora range using a LoStik?

I know this is a common question but I am wondering how to increase range on my Lora 'LoStik' device. https://www.crowdsupply.com/ronoth/lostik I am trying to send data from one LoStik to another. ...
2
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1answer
162 views

LoPy4 Gateway (LoRa RAW) connection to Raspberry Pi and AWS Cloud

I am attempting the following setup: Sensor--> I2C--> Pycom LoPy4(Node)-->LoRa-RAW-->Pycom LoPy4(Nano Gateway)-->RPi-->AWS I have established the LoRa RAW connection between the two LoPy4s, now I ...
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2answers
84 views

Signal Processing in LoRa

I was working with LoRa interfacing with microcontrollers and realized that I'd require encryption of data in my design. Can someone tell me if I would require signal processing for this purpose?
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2answers
220 views

Water meter reading using LORA

We need to get reading of meter using LORA. Previously, we have used NodeMCU with Wifi module but it contains short range. We need long range which will be around 10 km to 20 km, So we must need to ...
2
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3answers
398 views

Receiving acknowledgement in LoRaWAN without affecting data transmission

Consider a LoRaWAN in which multiple nodes are attached to gateway. The page at link-labs states that, once a message has been delivered, there is no acknowledgement of receipt. However, nodes in ...
4
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1answer
39 views

Can I send messages from LORIOT to an HTTP web server?

I actually send data packet from LORIOT and TTN to Cayenne. I would understand if is possible to send instead data from Loriot or TTN to my custom http web server, if there is any procedure around ...
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4answers
4k views

Is it a good option to send images over LoRa network?

LoRa (Long Range) technology is one of the promising technology which offers long range communication with low power consumption. Therefore when building a device that can be deployed in a no ...
3
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1answer
215 views

The Things Network AWS IoT integration

I have followed the tutorial for the AWS integration but cannot get the MQTT messages to display in the AWS IoT Core. I assume bridging is not working since I can get the messages in an external ...
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1answer
212 views

How does endianness work in LoRaWAN1.1?

On Page 9 in the LoRaWAN 1.1. specification it says: The over-the-air octet order for all multi-octet fields is little endian. EUI are 8 bytes multi-octet fields and are transmitted as little endian. ...
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1answer
1k views

The Things Network - Pricing

I am planning to use The Things Network for my next project with around 50 LoRa nodes geographically distributed in an area. I am wondering is LoRaWAN free to use - provided we buy LoRaWAN gateway ...
5
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1answer
88 views

Why does LoRaWAN 1.1 use MAC-then-encrypt for Join-Accept messages?

In the LoRaWAN 1.1. standard it says on Page 16 "For Join-Accept frame, the MIC field is encrypted with the payload and is not a separate field". In other scenarios the message integrity code is a ...
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0answers
14 views

Can there be a correlation between Emonlib current increase and RTC unsync on MKR 1300?

I'm having this weird issue where my data Send interval gets screwed up when the monitored current goes above 27A. Basically, it keeps adding several seconds to my interval, here's an example: ...
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1answer
77 views

LoRaWAN remote sensor node platform

Which platform can you recommend for a LoRa/LoRaWAN remote sensor node, which fulfills the following criteria? Detects presence of people in 15-minute interval (e.g. with a RCWL-0516) Reports the ...
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2answers
154 views

How to send data collected by two different sensors simultaneously?

I have two different sensors connected to my Raspberry pi and I have to send the data to other device. The transmission of data is through wireless network. I have been asked to send the data in ...
2
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2answers
90 views

LPWAN technology for remote environmental monitoring

What would be the most appropriate LPWAN technologies for environmental monitoring in a remote area, given the following: The monitoring system would be made up of 3 to 10 nodes located within a ...
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2answers
1k views

Using Raspberry Pi as a Lora Node for a TTN setup

I already have a LoRa gateway that I made using a NodeMcu with ESP8266 and now I want to send data from a Raspberry Pi 3 through that gateway to the TTN. The first thing that I did was to connect ...
4
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1answer
91 views

Microchip RN2903: TX/RX distance with internal antenna

My question is about the maximum transmission distance achieved with the Microchip SoC RN2903, only using its internal antenna. I've been doing field tests in urban environments, with this module and ...
4
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1answer
862 views

How does LoRa based geolocation work? How does it measure distance?

The speaker in the video Richard Lansdowne - LoRa Geolocation mentions straight-off that he won't be quoting an accuracy for geolocation using LoRa, and it's of course not the ideal signal you would ...
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1answer
69 views

Lorawan packets datasets

I'm studying Lorawan protocol. I would like to know if some datasets exist to study LoRaWAN packets, parameters and some features.
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0answers
39 views

How will the Proxima I and II satellites use or test LoRa in space?

IoT Aukland Tweet references FleetSpace and launch of the Proxima I and II satellites. This put's the "W" in LoRaWan in a different perspective. How will these test LoRa in space? Is there any ...
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1answer
152 views

Connect sx1272 module to a Dragino Gateway

I am new to Lora technology. I am using a sx1272 Lora Module and I am trying to send and receive data to a Dragino Gateway. The problem is the sx1272 and Dragino use two different libraries and hence ...
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2answers
679 views

Spreading Factor of LoRa

I am new to LoRa technology and I was reading it's technical specifications on the lora-alliance.org website. In the document, the SF is always considered between 7-12. What is the reason behind not ...
5
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1answer
2k views

Arduino LMIC: Figuring out when packet transmission has been started on Chip

I use the following example of an ABP-activated LoRaWaN node: https://github.com/matthijskooijman/arduino-lmic/blob/master/examples/ttn-otaa/ttn-otaa.ino But for some reason I cannot figure out when ...
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0answers
381 views

Semtech Lora Packet forwarder with Dragino Shield: How to configure the pins on packer forwarder?

As far I have seen that these links: USE LORA SHIELD AND RPI TO BUILD A LORAWAN GATEWAY LoRaWAN But they use an obsolete packer forwarder: https://github.com/tftelkamp/single_chan_pkt_fwd as a ...
8
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1answer
11k views

What is the maximum Packet Size of a LoraWan including the phy headers

I created a LoRa to USB pass-through via Arduino in order to use it as a temporary gateway for development purposes. So somehow I need to know how big a LoRa packet including PHY headers is, in order ...
4
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1answer
410 views

Why does IBM's arduino-lmic example for abp activation have only 2 keys?

As far as I know the LoraWan v1.1 Spec uses the following keys: FNwkSIntKey: In order secure the message integrity on the data that a node sends to the server. SNwkSIntKey: In order to secure the ...
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2answers
963 views

Using television Yagi antenna on a public homemade LoraWan gateway

I thought it would be nice to setup my own LoraWan public Gateway in order to extend "The Things Network" network. But in order to do that I think that I will need to use a proper antenna in order to ...
2
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1answer
450 views

HopeRf RFM98 and arduino-lmic library

For a Lora assay I am looking over the arduino lmic library furthermore I look over the pinout on RFM98 Lora Module: But I cannot figure out how I will configure the library in order to use the MOSI ...
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1answer
561 views

RFM69W and LoraWan

I'm trying to figure out how I will make an RFM69W LoRa Module work with The Things Network, so I looked over many tutorials, code samples, and libraries. The one I find closest to LoRaWan support is: ...
2
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1answer
111 views

Lo.RaWAN: Why a network server is needed?

As I continue my quest to the Lo.RaWAN I am looking over some tutorials on how to setup a Raspberry Pi Lo.RaWAN gateway so far I found these: https://docs.mbed.com/docs/lora-with-mbed/en/latest/intro-...
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1answer
128 views

Lo.Ra and Lo.RaWan: Why is a gateway needed?

As I was looking information regarding Lo.Ra and Lo.RaWAN over these links: http://www.instructables.com/id/Introducing-LoRa-/ https://www.link-labs.com/blog/what-is-lora https://www.quora.com/What-...
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1answer
136 views

(Multitech mDot + Conduit) mDot keeps dropping connection to network

If anybody has experience the Multitech mDot and Conduit modules to set up a LoRa network I could use their help. I’ve set up a LoRa network consisting of an mDot node (plugged into a Multitech ...
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3answers
4k views

Is a range of 50 km+ possible in LoRa?

I read this article which said I could get upto 50 km with a LoRa module. But when I read the product description it says the in-built range is only 16 km, so I obviously need an antenna. But what ...
6
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1answer
326 views

Increasing the range of an RF module

I am working with a RF-LORA-SO 868Mhz module. I read this article that says the range of this module could go up to 50km. But I would need to connect an antenna to my LoRa module. This article I ...
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2answers
1k views

MTAC-LORA-H-868: Can I use without an antenna?

I recently received MultiConnect Gateway (GW) + MTAC-LORA-H-868 but the problem is that I didn't receive any antennas. I need to setup LoRa Gateway ASAP. I'm new to LoRa and I have a few questions. ...
5
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1answer
167 views

Is it possible to share an Application between two or more LoRa Gateways using TTN?

I have a GPS Tracker application which periodically sends Latitude, Longitude, Altitude to a LoRa Gateway. I am using the The Things Network and sending the data via the OTAA method which provides ...