LoRa Forum

LoRa connectivity; news, information, Q&A's (NL/EN)

  • 419 Topics
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419 Topics

Jan Willem Smeenk
Jan Willem SmeenkNieuwkomer
geplaatst in LoRa Forum

LoRa GPS Tracker training in Hilversum

Heb je altijd al een LoRa GPS tracker willen maken? Wil je graag weten hoe en waar te beginnen? Kom dan naar onze cursus! (https://shop.sodaq.com/nl/cursus-lora-gps-tracker.html) Onder leiding van Jan van Loenen (alias Jan van LoRa) leer je in één dag hoe je de SODAQ ONE programmeert met de Arduino software en kun je de positie tracken en weergeven op een Google Map: [img]2cb23c22-6d79-45ba-a0ed-d33ece99ed42.png[/img] Het programma omvat: Introductie LoRa. Wat is LoRa? Waar kunnen we het netwerk wel en niet voor gebruiken? Welke LoRa netwerken zijn er. Introductie in LoRa hardware. Wat is een gateway en wat is een node. Installeren van de Arduino software op je eigen laptop Compileren van de SODAQ Tracker software en laden op de SODAQ ONE via USB Registreren op het KPN netwerk en aanmaak van een gratis test-account Registreren op The Things Network (optioneel) Configureren van de SODAQ ONE om data te versturen via een van bovenstaande netwerken Aanmaak account op h

0
Jan Willem Smeenk
6 jaar geleden
FIGO
FIGOStarter
gevraagd in LoRa Forum

Uplink message spec changed?

Hi, I noticed that the "Test Uplink" button uses another message structure than the actual received messages from a live LoRa node. Some of the LoRa network parameters are restructured, ex: LrrSNR, Lrrid, SpFact and possibly more. I'm using the KPN LoRa Developer portal. I tried to find any news information on: "Do you have any questions? Please ask them at our https://zakelijkforum.kpn.com/lora-nieuws-updates-18" mentioned at the developer portal but the link is dead.. Regards, FIGO

1
Timme
KPN Moderator
6 jaar geleden
Timme
KPN Moderator
TimmeProductmanager LoRa for Developers
geplaatst in LoRa Forum

End of life kpn.thingpark.com test environment - February 1st 2017

Before the KPN Lora Developer Portal went live, developers who wanted to try KPN Lora or participated in workshops got an account on kpn.thingpark.com This environment is a legacy version of the Thingpark platform that has not been updated over the past few months, resulting in a ever larger difference with the production environment. Since the arrival of the KPN Lora Developer Portal there has been less and less need for this outdated platform. That's why the development environment will go offline as of February 1st 2017. If you're a developer and want to keep on testing and developing with KPN Lora, please use the [url=https://loradeveloper.mendixcloud.com/]KPN Lora Developer Portal[/url]. Please be adviced that you cannot migrate your existing keys. Running into trouble due to this development? Please contact your accountmanager.

0
Timme
KPN Moderator
6 jaar geleden
michieljol
KPN Moderator
michieljolProductmanager LoRa for Developers
geplaatst in LoRa Forum

Over The Air Activation (OTAA)

This post has become obsolete as it was incorporated in the [url=https://zakelijkforum.kpn.com/lora-forum-16/over-the-air-activation-otaa-of-devices-11076]Over the air activation (OTAA) of devices[/url] topic. [spoiler]With Over The Air Activation (OTAA) a device joins a specific LoRa network using the DevEUI and an AppEUI together with an AppKey. The [b]DevEUI[/b] is an End Device Unique Identifier DevEUI (64 bits) and must be unique for all LoRaWAN networks. The DevEUIs are administrated by the IEEE. The [b]AppEUI[/b] is a global application ID in IEEE EUI64 address space that uniquely identifies the application provider (i.e., owner) of the end-device. The [b]AppKey[/b] is an AES key, used only when joining the network with OTAA. [b]The Join Procedure[/b]: [list][*]The device sends an unencrypted LoRa join request with the AppEUI, DevEUI, and a random generated and unique DevNonce. [*]If the network allows the device, then a join accept is sent to the device containing a r

5
H
6 jaar geleden
W
windchallengeNieuwkomer
gevraagd in LoRa Forum

LoRa: No payload_hex in the test POST?

Application server, result of a print_r of the received keys.. Array ( [0] => LrnDevEui [1] => LrnFPort [2] => LrnInfos [3] => AS_ID [4] => Time [5] => Token ) The LoRa developers documentation refers to a payload_hex field. I don't see it, even though it's possible to fill in a test value for your payload on the device edit page. What's going on?

3
Tim
6 jaar geleden
Amine Mouadden MBA
Amine Mouadden MBATopper in wording
gevraagd in LoRa Forum

Looking for LoRa Developers

Hello, for the scope of a project, I am looking for a developer familar with KPN LoRawan and IoT application development. the person should have experience in integrating devices on the KPN LoRaWan and building applications based on the data forwarded by KPN portal. if interested, please contact me on my email : enamine@gmail.com Cheers Amine

0
Amine Mouadden MBA
6 jaar geleden
Timme
KPN Moderator
TimmeProductmanager LoRa for Developers
geplaatst in LoRa Forum

LoRa antenna design

Reception of a signal is a key component of mobile communication, so it is important to make sure that the end-device used has a proper antenna design. Consider making the antenna external to the device. Note that it is not possible to amplify a signal that was not received in the first place. IMST GmbH, a German based research-driven industrial engineering and design house specializing in radio technologies, has created an antenna reference design guide for ISM band applications. It can be accessed [url=http://kpn-lora.nl/Antenna_Reference_Design_Guide_ISM.PDF]online[/url]. The figure below provides an overview of several antennas and their advantages and disadvantages. [img]2cb58055-1cd1-431e-adfb-740a46b3eb03.png[/img] We highly recommend consulting an expert on antenna design when designing a LoRaWAN device.

0
Timme
KPN Moderator
6 jaar geleden
TristanFrijters
TristanFrijtersNieuwkomer
gevraagd in LoRa Forum

Node timeout

Beste allen, Op de een of andere manier komen mijn berichten niet aan op de wlogger. Mijn LoRa node maakt wel verbinding met het netwerk (ik krijg een "connection to the network was succesfull" terug van de LoRaBee.initABP functie) echter, wanneer mijn node het bericht probeert te versturen, krijg ik een Timeout als reactie. Hier is de code: [code] if (loraZenden) { // Zet de Pinnen naar de LoRabee hoog digitalWrite(BEE_VCC, HIGH); loraSerial.begin(LoRaBee.getDefaultBaudRate()); if (LoRaBee.initABP(loraSerial, devAddr, appSKey, nwkSKey, true)) { SerialUSB.println("Connection to the network was successful."); } else { SerialUSB.println("Connection to the network failed!"); } switch (LoRaBee.sendReqAck(1, (uint8_t*)loraBericht.c_str(), loraBericht.length(),8)) { case NoError: SerialUSB.println("Successful transmission."); loraZenden = false; break; case NoResponse: SerialUSB.println("There was

1
Tim
6 jaar geleden
S
simon99Nieuwkomer
gevraagd in LoRa Forum

Wat zit er in de IoT SIM Developer Kit

Heeft iemand de IoT SIM Developer Kit besteld. Zoja wat zit er allemaal in de kit en bevalt deze? Ik wil beginnen met LoRa en wil weten of deze kit geschikt is om te beginnen. Alvast bedankt voor uw antwoord. Groet, Simon

1
Tim
6 jaar geleden
FIGO
FIGOStarter
gevraagd in LoRa Forum

Sodaq ONE - mac_err

Beste Heren/Dames, Momenteel zijn wij aan het testen met de LoRa en gebruiken hiervoor de SODAQ ONE (http://support.sodaq.com/sodaq-one/) met de Universal Tracker 2.0 (https://github.com/SodaqMoja/SodaqOne-UniversalTracker) applicatie. [b]Echter komen de berichten verzonden van de SODAQ niet aan op het developers portal.[/b] Telkens word de melding "mac_err" getoond en volgens de RN2483 (http://ww1.microchip.com/downloads/en/DeviceDoc/40001784B.pdf) datasheet is dit omdat: "mac_err - if transmission was unsuccessful, ACK not received back from the server". Wat erop lijkt dat er geen berichten terug komen. De testen worden buiten uitgevoerd in Enschede (omgeving van Universiteit Twente) hier zouden 3 masten dekking op moeten geven. de berichten worden per 5 minuten gestuurd wat na verloop van tijd een "busy" oplevert en volgens de datasheet "if the transceiver is currently busy" betekend. Helaas is er ook nog helemaal niks aangekomen op de Gateways, en word de status "busy" n

11
Tim
6 jaar geleden
TristanFrijters
TristanFrijtersNieuwkomer
gevraagd in LoRa Forum

Batterijduur Lithium polymeer batterij

Hallo, Sinds een tijdje bezig met onderzoek doen naar het LoRa protocol en de toepassingen daarvan. Overal wordt geroepen dat je door middel van LoRa een batterijduur kan realiseren van 10+ jaar. Echter, kijkend naar de eigenschappen van een lithium polymeer batterij, welke volgens meerdere bronnen al een zelfontlading heeft van 2-5% per week, lijkt het me sterk dat deze 10 jaar te halen is. Zelf probeer ik een batterijduur van 4 jaar te realiseren in mijn LoRa oplossing en zelfs dat lijkt me lastig. Heb ik ergens een denkfout gemaakt of gebruik ik de verkeerde soort batterij?

1
Tim
6 jaar geleden
Klyner
KlynerNieuwkomer
gevraagd in LoRa Forum

Receive LoRa data

My question is about receiving LoRa data packets. I already configured packets which are sent from an Arduino program and are visible in the kpn devicemanager and wlogger. I just read an 11 months old topic about an Application data API but got No response with the provided URL (and using my own DevEUI). Does anyone know how to fetch your LoRa packets or what I am doing wrong related to the other topic? (https://zakelijkforum.kpn.com/lora-forum-16/application-data-api-4768#_=_ )

4
Tim
6 jaar geleden
D
DKMDNieuwkomer
gevraagd in LoRa Forum

KPN debugger ontvangt geen berichten.

Hallo, Voor een project maak ik momenteel gebruik van een RN2483 LoRa daughterbord van Microchip. Tot vandaag kon ik verzonden berichten uitlezen met behulp van de KPN debugger. Momenteel verschijnen er geen nieuwe verzonden berichten meer op de KPN debugger of in hookbin. Het bord reageert wel op uart commando's. Kan iemand mij vertellen wat wellicht de oorzaak kan zijn en of er momenteel onderhoud wordt gepleegd aan het LoRa netwerk De GPS coordinaten van de dichtsbijzijnde LoRa mast zijn: 52.026318, 4.551069 (Bleiswijk) PS: Ik had ook nieuwe keys aangemaakt. De nieuwe keys hadden geen effect.

4
R
6 jaar geleden
S
stefano.mcf88Nieuwkomer
gevraagd in LoRa Forum

Test kpn LoRa Network from Italy

Hi, We would like to test kpn LoRa network from Italy, connecting our's devices to this network. Which base stations should we buy and how we will have to set it up to send data to the kpn LoRa network? Sorry for my english, Thank you in advance.

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michieljol
KPN Moderator
6 jaar geleden
A
alexNieuwkomer
gevraagd in LoRa Forum

The secret suffix method

While reading through some of the API documentation of the Developer Portal I stumbled upon the use of the secret suffix method to produce a MAC to authenticate the sender of a payload. It is well known that cryptographers advice against using this method.. What is the rationale for using the secret suffix method instead of an HMAC function (which is designed for this type of thing)?

3
A
6 jaar geleden
T
thalla7Nieuwkomer
gevraagd in LoRa Forum

LoRa class B uitrol

Hallo, ik vroeg mij af wanneer KPN Zakelijk de mogelijkheid tot het gebruik van LoRa class B gaat implementeren. Voor wanneer staat de uitrol hiervoor op de planning?

1
michieljol
KPN Moderator
6 jaar geleden
R
robkleineeDeelnemer
gevraagd in LoRa Forum

Downlink berichten verstuurd op channel LC127

Sinds kort zijn we bezig met het implementeren van een eigen Lora-node en we testen deze node op het KPN Lora netwerk. De node laten we nu met ABP verbinden met het KPN netwerk. Op sommige momenten komen downlink MAC en databerichten netjes aan op de node, echter de laatste tijd komen de MAC en databerichten niet meer aan op de node. De software op de node is de gehele tijd hetzelfde gebleven. Wat opvalt is het volgende: voorheen (toen de berichten nog aankwamen) was op de wlogger te zien dat de berichten werden verzonden naar de node op channel RX2. Nu worden deze berichten op channel LC127 verstuurd. Het vermoeden is dan ook dat dit de oorzaak is van het probleem. Nu de vraag: waarom wordt nu opeens LC127 gebruikt? En welk channel is LC127?

4
R
7 jaar geleden
Jethro Borsje
Jethro BorsjeNieuwkomer
gevraagd in LoRa Forum

Basic Authentication on LoRa POST endpoint

Is it possible to apply Basic Authentication to the LoRa endpoint which receives the POSTs? In the developer portal I can't find the place where to configure the user/password combination.

1
michieljol
KPN Moderator
7 jaar geleden
michieljol
KPN Moderator
michieljolProductmanager LoRa for Developers
geplaatst in LoRa Forum

Lora Decryption on Application Server

This post has become obsolete as it was incorporated in the [url=https://zakelijkforum.kpn.com/lora-forum-16/there-are-online-lora-tools-and-reference-code-available-to-make-your-life-easier-10110]There are online LoRa tools and reference code available to make your life easier[/url] topic. [spoiler][i]This topic is only for paying LoRa customers that do not give their AppSKey in Thingpark. Other cases do not need to have this decryption scheme on their application server and this is done automatically by KPN servers![/i] In this topic we describe how to decrypt an encrypted LoRa message on an applications server. The user is assumed to know how different authentication methods and keys are used, see [url=https://zakelijkforum.kpn.com/lora-forum-16/lora-forum-and-manuals-8318] index topic[/url]. This topic focuses on decrypting the payload once you have received it properly. [h3]Introduction: Customer-Side Decryption[/h3] The LoRa payload is by default encrypted with AES-128

0
michieljol
KPN Moderator
7 jaar geleden
michieljol
KPN Moderator
michieljolProductmanager LoRa for Developers
geplaatst in LoRa Forum

Packet Loss with LoRa

This post has become obsolete as it was incorporated in the [url=https://zakelijkforum.kpn.com/lora-forum-16/certification-and-requirements-of-lorawan-devices-10958]Certification and requirements of LoRaWAN devices[/url] topic. [spoiler]The LoRa protocol is very lightweight to reduce battery consumption and does not contain as many error correction methods as conventional communication protocols. KPN strives to have a optimal network performance., but will not be able to avoid collisions between LoRa packets in the air interface, meaning missed packets that will not be resend by the protocol. Solution Providers should build in error correction methods in their application to compensate for missed packets. There are several error correction methods available. The most straightforward method is to include the last few measurements in a new packet. This will be a challenge on your payload size, so you might want to check out other methods.[/spoiler]

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michieljol
KPN Moderator
7 jaar geleden
michieljol
KPN Moderator
michieljolProductmanager LoRa for Developers
geplaatst in LoRa Forum

Examples of uplink messages

When creating your application server it of course important to know the type of messages your application server can expect. Through the IoT Academy I've created some examples on Github of J-SON formatted POST messages from KPN Thingpark and the Developer Portal. Also, an example script is available to simulate these messages from your laptop, so you don't need a LoRa device that sends very often to continue developing, Please refer to [url]https://github.com/iotacademy/LoRaPayloadSimulator/[/url] and do a pull request if you have any enhancements. Also, you can ask your questions about these example below. [i]Click [url=https://zakelijkforum.kpn.com/lora-forum-16/lora-forum-and-manuals-8318]here[/url] to go back to the index topic[/i]

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michieljol
KPN Moderator
7 jaar geleden
michieljol
KPN Moderator
michieljolProductmanager LoRa for Developers
geplaatst in LoRa Forum

Certificering van Devices

This post has become obsolete as it was incorporated in the [url=https://zakelijkforum.kpn.com/lora-forum-16/certification-and-requirements-of-lorawan-devices-10958]Certification and requirements of LoRaWAN devices[/url] topic. [spoiler]To insure that KPN can offer a good and stable network, every LoRa device must be certified to be allowed on the network. The certification can be executed by several official [i]test service providers[/i] of the LoRa Alliance. More about the certification can be found at [url=https://www.lora-alliance.org/Products/Certification-Overview]site of the LoRa Alliance[/url]. In order to enable development KPN allows small volumes of uncertified devices (less than 256). This is only allowed in development projects that have a goal of certification in the long term. In short: [list] [*]To connect new types of devices on the KPN LoRa Network, a proof of certification is needed. [*]When devices or modules are used that are certified themselves, no extr

0
michieljol
KPN Moderator
7 jaar geleden
michieljol
KPN Moderator
michieljolProductmanager LoRa for Developers
geplaatst in LoRa Forum

Activation by Personalisation

There are 2 methods of device activation, namely [url=https://zakelijkforum.kpn.com/lora-forum-16/over-the-air-activation-otaa-of-devices-11076]Over The Air Activation (OTAA)[/url] and Activation By Personalisation (ABP). [b]ABP is not allowed on the KPN live network. [/b]On the [url=https://zakelijkforum.kpn.com/lora-forum-16/kpn-lora-developer-portal-8429]developer portal[/url] it is still allowed, however KPN encourages users to use OTAA also in the development phase, since this makes it easier to scale up in the long run. [spoiler]Every device has a unique identifier within a specific LoRa network, a Device Address: DevAddr (32 bits). Both Core and Device must know this [b]DevAddr[/b] plus the [b]NwkSKey[/b] and optionally the [b]AppSKey[/b]. Globally, an End Device Unique Identifier DevEUI (64 bits) is defined, that is unique for all LoRaWAN networks. The DevEUIs are administrated by the IEEE. Messages can be sent when DevAddr, NwkSKey and AppSKey are set. For small numbers of

0
michieljol
KPN Moderator
7 jaar geleden
michieljol
KPN Moderator
michieljolProductmanager LoRa for Developers
geplaatst in LoRa Forum

Encryption of LoRa messages

This post has become obsolete as it was incorporated in the [url=https://zakelijkforum.kpn.com/lora-forum-16/lorawan-security-encryption-and-authentication-10957]LoRaWAN Security: Encryption and Authentication[/url] topic. [spoiler]LoRaWAN forces all devices to encrypt payload and header with the Advanced Encryption Standard (AES), using keys of 128 bits (or 32 hexadecimal characters): [list][*]Network information is encrypted with a Network Session Key ([b]NwkSKey[/b]). This key needs to be shared between device and KPN LoRa Core. [*]Payload information is encrypted with a Application Session Key ([b]AppSKey[/b]). This key needs to be shared between device and customer Application Server. The AppSKey does not have to be shared with the network operator, but developers can choose to share the AppSKey with KPN to decrypt the payload and sent the decrypted payload over a secure https connection.[/list] AppSKey and NwkSKey can be generated as a string of 32 random hex characters.

0
michieljol
KPN Moderator
7 jaar geleden
michieljol
KPN Moderator
michieljolProductmanager LoRa for Developers
geplaatst in LoRa Forum

Receiving and decoding messages

This post has become obsolete as it was incorporated in the [url=https://zakelijkforum.kpn.com/lora-forum-16/setting-up-your-application-server-11069]Setting up your Application Server[/url] topic. [spoiler]After decryption of payload with the AppSKey (either by KPN or by the Application Server) the payload still needs to be decoded. All payloads are hexadecimal, meaning they have to be interpreted (decoded) in some way to be used in applications. The decoding scheme depends solely on what the device manufacturer programmed in your device. For instance, some devices use a simple hex-to-string function where each byte can be translated to a readable characters. Other devices identify a subset in your payload (for instance the first 4 bytes) and translate that from hexadecimal to decimal to get a sensor value, like the LoRaMote (see [url=https://zakelijkforum.kpn.com/vragen-toepassingen-oplossingen-16/how-to-intepret-data-from-a-loramote-4788]here[/url] for instance). [u]Pleas

0
michieljol
KPN Moderator
7 jaar geleden

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