CloudHacker Noonabout 7 hours ago
Building OTA Pipelines for 300+ EV Chargers
17 min read
A DevOps engineer built OTA firmware pipelines for 300+ EV chargers using AWS IoT Core after a self-managed MQTT broker hit limits across four dimensions. The system handles active session protection, multi-component firmware, hardware generation heterogeneity, and geographic distribution. Device Shadows preserve update state during intermittent connectivity.
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