How do send CO values from my Lopy4 to my gateway(Lora Hat + Raspberry pi 3)

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1

Hi,

So im currently working on a project that that sends CO values from a sensor to TTN and from there to Node-red and from Node-Red to Grafana. I will also have to build a gateway to connect it to TTN and I will build this gateway using The Lora Hat and a Raspberry Pi 3. I am seeking help because I don't know how im going to send the values from my CO sensor from my Lopy4 to my gateway that is connected to TTN. Do i have to send the data at the same frequency as the gateway? or do something completely different? And is there a tutorial for this specific task?

Any insights to this will help a lot and im open to hearing any suggestions
Thank you

2

Can't you use the MQTT protocol over LoRa?

3

no you can't. in some modes you can send about 22 bytes every minute or so... not over the air no. Yes from the gateway back wherever - absolutely... But the whole Lopy Lora to TTN question is nothing to do with Node-RED - so would be better answered on a dedicated Lopy or TTN forum.