Reacties geplaatst door markruys

4 Reacties

B
basvaningenRijzende ster
gevraagd in LoRa Forum

Where to find AppEUI

Hi Tim, We need to test OTAA on the dev portal too. Please provide us with the AppEUI too. Cheers, Mark

49
Tim
6 jaar geleden
M
MeineToonenStarter
gevraagd in LoRa Forum

Downlink bericht fout "No Base Station Available"

Ter inspiratie, voor wie Linux (of Mac gebruikt), dit script stuurt download messages: #!/bin/bash LRC_AS=... APP_KEY=... APP_EUI=... DEV_EUI=... AS_ID=... FPORT=1 PAYLOAD=010203 TIME=$(date -u "+%Y-%m-%dT%H:%M:%SZ") POST="DevEUI=${DEV_EUI}&FPort=${FPORT}&Payload=${PAYLOAD}&AS_ID=${AS_ID}&Time=${TIME}" TOKEN=$(echo -n "${POST}${LRC_AS}" | shasum -a 256 | awk '{print $1;}') URL=https://api.kpn-lora.com/thingpark/lrc/rest/downlink curl -H "Content-type:application/x-www-form-urlencoded" -X POST "${URL}?${POST}&Token=${TOKEN}"

12
Rick S.
Community manager
6 jaar geleden
X
XkottelaarTopper
gevraagd in LoRa Forum

ESP waarde in de wireless logger

Na een beetje fitting blijkt deze formule best aardig te werken: ESP = RSSI + if(SNR > 3, 0, SNR - exp(1.1467 + 0.1986 * SNR))

12
markruys
5 jaar geleden
Lennart Nordin
Oud KPN Medewerker
Lennart NordinOud KPN Medewerker
geplaatst in LoRa Forum

LoRaWAN best practices

Thank you for the useful best practices overview. About detecting network connectivity it seems to me that setting ADRACKReq after ADR_ACK_LIMIT is a nice way to implement it as it minimizes the number of downlink messages and gives the NS the chance to optimize downlinks. MachineQ wrote a nice article about this: [url=https://machineq.com/post/how-to-detect-connection-loss-on-a-lorawan-device-and-why-it-matters]https://machineq.com/post/how-to-detect-connection-loss-on-a-lorawan-device-and-why-it-matters[/url]. What I don't understand why a ADR_ACK_LIMIT value 64 is considered a best practice. For example for devices which issue only a single uplink a day it would take 2 to 3 months before the device notices connectivity issues. For such devices I would consider to set ADR_ACK_LIMIT to 14 and ADR_ACK_DELAY to 10.

2
T
KPN Moderator
4 jaar geleden

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