I'm looking for a general overview of communication protocols and layers between internet-connected objects. Specifically, I'm curious about how data packets are packaged in low-power networks (LPWAN), where the security layer is positioned, and the process of routing to cloud services. What do you think is the most commonly used protocol and what are some application examples?
How does data transmission work between IoT devices?
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Could someone clarify how the security layer is integrated within LPWAN protocols like LoRaWAN and what exactly happens to the data packets when they are sent to the cloud service?
Thanks for the summary, it's much clearer now how the layers and security work in LPWAN. Have you ever tried MQTT-SN with LoRaWAN to send sensor data?