The LLC (Little LoRa Collider)

Some things are notoriously hard to test. Since we’re not designing our own gateway or packet forwarder (yet…), we end up having this third party “thing” between our beautiful Congress backend and our elegant EE02 LoRa modules. This “thing” being a LoRa gateway, which behaviour we simply have to trust. It should (in order to claim to be a LoRa gateway) reliably implement all the happy path scenarios needed for a successful LoRa deployment. »

Author image Hans Jørgen Grimstad on #ee02, #lora,

Introducing Congress - the LoRa-as-a-service...service!

What is it? You probably wonder “what’s this Congress you are talking about?” just. Since the raven is our mascot we googled around a bit and settled on Congress as in “a congress of ravens”. It is - in short - a lora-as-a-service that we’ve built over the last year. Where is it? The console can be found at https://lora.engineering/ – register an account with Telenor CONNECT and it’s ready to use. »

Using AWS IoT with Congress

There’s a lot of different cloud IoT providers out there and Amazon is one of the biggest (if not the biggest). They started out relatively simple with EC2 and have added new services and features at a blistering pace the last few years AWS IoT is one of them. They have a fairly simple model: The devices are referred to as things (obviously), data from devices is stored in thing shadows and that’s about it. »

The wheels on the bus go round and round

…which may or may not affect the operation of our latest prototype. Only field testing will tell with any given degree of certainty. In late september, we were invited to a meeting with representatives from Telenor Reseach and the Northern Research Institute, which were on the lookout for mobile outdoors air quality sensors that could be mounted on bus rooftops in Tromsø, Norway. The sensor modules should be able to detect PM2. »

Raspberry Pi LoRa Gateway

“All things are difficult before they are easy”. I recently orderered a couple of RAK 831 LoRa gateways from China. If you already have a Raspberry Pi, you can get the gateway module for approximately 120 USD. If not, you can get a kit, containing the module, a raspberry, antenna and a prepopulated SD card, with the necessary drivers and software installed. This is slightly more expensive, but it saves you a lot of hassle. »