lorawan | Package lorawan provides structures tools to read

in lorawan I know certain formula about data rate and receiver sensitivity. Some of these formulas can be found here. My question is that how does bandwidth effects the range in lorwan network? given that other parameters are constant. And according to which formula can it be concluded?

Thanks.

I just built and tested connection with ttn using single channel lorawan gateway as per thing4U/esp-1ch-gateway and a single channel node both based on TTGO-ESP32Lora and eventually configured both on www.thethingsnetwork.org. Everything works nicely but I do not understand why despite the node sends data at pace of 2 minutes, the gateway detects and send over to ttn just one packet out of three. I.E.: packet 0,3,6,9 etc. so the data at ttn are updated every 6 minutes instead of 2. Any help / suggestion is appreciated.

Currently I've got my own LoRaWAN network, with around 45 devices sending data with this payload: ID=D0001&T=23&H=60 where ID is the sensorId; T-Temperature; H - Humidity.

What steps do I have to make next to get context from my devices?

These are the steps that I've made:

1 - Installed IoT-Agent Ultralight

2 - Configured MQTT on the config.js file with my MQTT data

config.mqtt = { host: 'HOST_NAME', port: 1883, protocol : mqtt, username: 'USERNAME', password: 'PASSWORD', retain: false, retries: 5, retryTime: 5, keepalive: 0, avoidLeadingSlash: false };

3 - IoTAgent-ul (node bin/iot-agentul), getting this message: time=2020-12-01T10:44:48.197Z | lvl=INFO | corr=526cdc56-62b8-4791-b95d-f5110ca18b7e | trans=526cdc56-62b8-4791-b95d-f5110ca18b7e | op=IOTAUL.MQTT.Binding | from=n/a | srv=n/a | subsrv=n/a | msg=connected | comp=IoTAgent

I'm new to LoRaWAN. I want to set up a new gateway in my country (Algeria North Africa) since it has no gateways yet. I'm having some difficulties concerning finding the appropriate frequency and some similar problems. On the lora alliance website, I found that the suitable frequency for my region is 915MHz but when you start a new setup in thethingnetwork gateway, there is no router or frequency for my region?

• How to deal with that before buying a gateway?
• And for those who are from Morocco, Tunisia, Egypt, and other countries, how did you pick the suitable frequency?

Here are some images for context:

I have a use case where I am required to append multiple json files and then convert them into 1 single Avro file. I have written the code below which appends the json files together and then convert them into AVRO file. But the issue I am having is that the JSON file gets appended but the entore JSON is enclosed in [] brackets and so I get error while converting it into AVRO file. I am trying to figure out how can I get rid of the [] from the first and the last line in JSON file? Any help is appreciated.

The error I am getting is (snippet of the error, error is too long to paste : avro.io.AvroTypeException: The datum [{'event_type': 'uplink'.....}] is not an example of the schema

My code: Laird.py

I have a LHT65 Sensor which sends an encoded payload and I found this code in javascript:

https://gist.github.com/koenvervloesem/c9dca322bd25a98dd042324469d0081d

I am new to AVRO and Python. I have a use case where I want to convert the JSON file into an Avro file. I have stored my schema in .avsc format and the JSON data in .json format. Now I want to put the JSON file and .avsc file together and serialize the JSON file into Avro. Below is my code, I am getting an error that "avro.io.AvroTypeException: The datum file.json is not an example of the schema". I am not sure what I am doing wrong. In my writer.append statement I want the script to take data from JSON file and append it in .avro file but in a serialized format. I am not sure how to handle this, any help will be highly appreciated.

Here is my code:

I have a question concerning LoRaWAN protocol:

Is it allowed to write that my product is compatible with LoRaWAN even if it is not certified by LoRa Alliance?

I do not know exactly what can I write in product specification? I am sure, that I cannot write that my product is LoRaWAN Certified if I have not certified it. But... Maybe I can write that my product is LoRaWAN compatible or just it uses LoRaWAN.

Would it violate and legal rules?

Best regards!

I was reading the QuantumLeap docs and I was wondering how those Generic Enablers are integrated, I mean, I've deployed the docker containers and apparently are all running, in fact I've been able to create a device in the IoTagent-LoRaWAN with the POST request which I'm also able to retrieve with the GET request to http://localhost:4061/iot/devices; however and it's apparently receiving the info from TTN as the log shows: