Registering LoRaWAN sensors in AWS IoT Core with CDK requires a custom resource to avoid losing the device session on stack updates. This article explains why, how to store secrets in SSM Parameter Store, and what you gain by managing sensors as code.
The cdk.out folder can balloon to 15GB+ in large CDK monorepos. Instead of wiping it entirely, a small cleanup script removes only unused assets — keeping deploys fast while reclaiming disk space.
The Browan Femto Lite (now MerryIoT Hub) is an affordable LoRaWAN gateway that connects to AWS IoT Core via Basic Station mode. This guide covers the two main steps — registering the gateway with the right EUID and uploading the CUPS certificate — including the key gotchas that trip people up.
