Concept clusters
Related ideas that live chapters apart, pulled onto one page — every way to own memory, every container and when to pick it, and more.
Every way a device stays connected
Noticing the link is gone, getting back on without a stampede, keeping data meanwhile, and not doing anything twice. Each is a separate mechanism, and a robust device needs all four.
24 concepts →
Every place a secret can live
In the image, in plain or encrypted NVS, behind the DS peripheral, in a secure element, or on the server as a slow hash. What a stolen copy would cost decides which.
20 concepts →
Every way to move data from a device to the cloud
A radio for the first hop, a protocol on top, a direct path or a gateway, and a choice of how often and how much. Distance, power and direction decide most of it.
20 concepts →
Every way an over-the-air update can fail
Interrupted, broken, malicious, incompatible with stored data, bad across the fleet, or failing with no evidence. Each failure has its own defence, and an update system needs them all.
24 concepts →
Every way to send less data
Fewer messages, smaller messages, or a smaller question: batching, reporting by exception, compact formats, summaries, edge filters and on-device models, and what each one costs.
15 concepts →