reference · ble
Bluetooth Low Energy: GATT, Power, and Product Boundaries
A systems view of BLE advertising, connections, GATT, security, and coexistence.
Knowledge map
Understand the system, not isolated terms.
Maintained reference pages that explain what each technology does, where it belongs, and where its boundaries are.
reference · coap
CoAP: RESTful Messaging for Constrained Devices
Understand CoAP methods, confirmable messages, observation, and when constrained REST is a good fit.
reference · security
Device Identity: Credentials, Ownership, and Lifecycle
Build a device identity model that survives manufacturing, activation, transfer, and retirement.
reference · platform
Digital Twins: Models, State, and Decision Context
Distinguish useful digital twins from dashboards, shadows, and marketing labels.
reference · iot
Internet of Things (IoT): A Systems Definition
Understand IoT as an operating system of devices, connectivity, software, data, and accountable action—not a collection of sensors.
reference · aiot
IoT Agents: Authority, Evidence, and Safe Action
Place AI agents inside explicit operational boundaries for diagnosis, recommendation, and control.
reference · platform
IoT Device Shadow: Desired vs Reported State
Learn how IoT device shadows handle desired, reported, delta, version, and stale state in AWS IoT and Azure device twins, with a reconciliation example.
reference · security
IoT Security: A Lifecycle Control System
Apply security across product design, manufacturing, operation, update, transfer, and retirement.
reference · lorawan
LoRaWAN: Long-Range, Low-Power Network Design
Place LoRaWAN correctly across devices, gateways, network servers, and application security.
reference · lte cat 1
LTE Cat 1 and Cat 1 bis for IoT Products
Understand where LTE Cat 1 fits between low-power cellular and higher-bandwidth LTE.
reference · matter
Matter: Interoperability Above IP
Understand Matter fabrics, commissioning, device models, and what Matter 1.6 changes.
reference · modbus
Modbus: Registers, Function Codes, and Integration Limits
Learn where Modbus fits in industrial acquisition and where an edge translation layer is required.
reference · mqtt
MQTT Brokers: Responsibilities and Selection Boundaries
Understand what an MQTT broker should own and how to evaluate one for production fleets.
reference · mqtt
MQTT: Protocol, Architecture, and Production Practice
A production-focused guide to MQTT sessions, topics, delivery semantics, and operational boundaries.
reference · nb iot
NB-IoT: Cellular Connectivity for Low-Throughput Fleets
Evaluate NB-IoT for coverage, power, mobility, latency, and operator dependency.
reference · opc ua
OPC UA: Information Models and Secure Industrial Interoperability
A practical introduction to OPC UA services, information models, security, and deployment boundaries.
reference · ota
OTA Updates: Safe Fleet Software Delivery
Understand signing, staged rollout, rollback, evidence, and device health for over-the-air updates.
reference · platform
Rule Engines: Turning Telemetry into Governed Events
Design rules that produce explainable business events instead of an unmanageable alert stream.
reference · sparkplug b
Sparkplug B: MQTT State Management for Industrial Systems
Learn how Sparkplug adds topic conventions, birth/death state, and metric semantics to MQTT.
reference · platform
Thing Models: Shared Semantics Without False Uniformity
Design reusable capability models while preserving device-specific constraints.
reference · data
Time-Series Databases for IoT Workloads
Choose storage from write shape, query patterns, retention, and operational cost.
reference · edge
What Is an Edge Gateway? Architecture, Roles, and Selection
See an original field-to-cloud edge gateway architecture, compare gateway and edge-computer roles, and choose safe protocol, buffering, and control boundaries.
reference · zigbee
Zigbee: Mesh Networking, Security, and Ecosystem Fit
Understand Zigbee mesh roles, trust centers, commissioning, and the Zigbee 4.0 transition.
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