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Hi. One approach is to use AWS IoT Shadows. You could have a shadow per wireless device. From the decoder Lambda, you could also update the shadow. You could store last FCnt, timestamp of last received message from a device, last sensor value etc. The Lambda could check if the new FCnt value is in sequence, and trigger some kind of notification. If you have the last received timestamp in the shadow, you could use fleet indexing and fleet metrics to monitor the freshness of your fleet at large. By having last known sensor values, the shadow will be useful for more than device health. And you may also be interested in Fleet Hub. Please be aware of shadow limits in case you have a large fleet and/or your devices are sending very frequently.
Another approach could be to use AWS IoT Events.
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- AWS 공식업데이트됨 2년 전