IoT & Connectivity
IoT architecture, short-range/LPWAN wireless, IoT protocols, cloud/edge platforms, and IoT security.
320 topics · 40 with articles
Intern Engineer· 40
- Asset Tracking: Real-Time Location System (RTLS)
- Automotive IoT: V2X, OBD-II Telematics, Fleet Management
- Building Automation: HVAC, Lighting, Access Control IoT
- Connected Health IoT: Wearables, Remote Monitoring
- Constrained Devices: RFC 7228 Class 0, 1, 2 Definitions
- Device Lifecycle: Provisioning, Operation, Update, Decommission
- Device Shadow / Digital Twin Concept
- ETSI SmartM2M: oneM2M Architecture and API
- Edge vs. Fog vs. Cloud Processing: Latency Trade-off
- Energy Management IoT: Sub-Metering, BEMS Integration
- Environmental Monitoring: Air Quality, Water, Noise
- IIC (Industrial Internet Consortium) IIRA Framework
- Industrial IoT (IIoT) vs. Consumer IoT Differences
- IoT Architecture Layers: Perception, Network, Application
- IoT Business Models: SaaS, DaaS, Platform-as-a-Service
- IoT Connectivity Trade-Offs: Range, Bandwidth, Power, Cost
- IoT Data Flow: Telemetry, Command, Alarm, Config
- IoT Data Formats: JSON, CBOR, MessagePack, Protobuf
- IoT Definition: Sensors + Connectivity + Cloud + Analytics
- IoT Device Classification: Constrained, Gateway, Cloud
- IoT Device Management: Registration, Monitoring, OTA
- IoT Ecosystem: Devices, Gateways, Brokers, Apps
- IoT Interoperability: Standards Gap and Fragmentation
- IoT ROI Calculation: Cost Savings, Efficiency Metrics
- IoT Reference Architecture: ITU-T Y.4000, ISO/IEC 30141
- IoT Scalability: Millions of Devices, Message Brokers
- IoT vs. M2M: Machine-to-Machine Communication Basics
- Matter Standard: Application Layer for Smart Home
- Open Connectivity Foundation (OCF) IoTivity Standard
- Predictive Maintenance IoT: Vibration, Temperature, Oil
- RAMI 4.0: Reference Architecture for Industry 4.0
- Regulatory Landscape: FCC, CE, ETSI EN 303 645 IoT
- Retail IoT: Smart Shelf, Inventory, Customer Analytics
- Smart Agriculture IoT: Sensors, Drones, Automation
- Smart City IoT: Traffic, Utilities, Public Safety
- Smart Grid IoT: AMI, SCADA, Demand Response
- Supply Chain IoT: RFID, GPS, Condition Monitoring
- Sustainability IoT: Carbon Footprint, Green IoT Design
- Time-Series Data: Characteristics and Storage Needs
- W3C Web of Things (WoT): Thing Description (TD)
Junior Engineer· 80
- 5G RedCap (Release 17): Reduced Capability for IoT
- 5G mMTC: Massive Machine-Type Communications Use Case
- ANT+: Sports and Fitness Sensor Protocol Network
- Amazon Sidewalk: LoRa 900 MHz Community Network
- BLE Advertising: ADV_IND, ADV_DIRECT, Extended Advertising
- BLE Audio: LE Audio (BT 5.2+), LC3 Codec, Auracast
- BLE Connection: Interval, Latency, Supervision Timeout
- BLE Direction Finding: Angle of Arrival (AoA), AoD (IQ-DECT)
- BLE GAP: Device Discovery, Connection, Bonding Roles
- BLE GATT: Service, Characteristic, Descriptor, UUID
- BLE Mesh: Network Keys, Flooding, Managed Flood Relay
- BLE OTA DFU: Nordic nRF DFU, Zephyr MCUmgr
- BLE Security Manager: Pairing, Bonding, LE Secure Connections
- BLE Throughput Optimization: L2CAP CoC, GATT Streaming
- Bluetooth 5.3 Features: Connection Subrating, Enhanced ATT
- Bluetooth Classic: BR 1 Mbps, EDR 2/3 Mbps Physical Layer
- Bluetooth Low Energy (BLE) PHY: LE 1M, LE 2M, LE Coded
- Cellular IoT Certification: GCF, PTCRB, Carrier Approval
- Cellular Module Integration: Quectel, Telit, u-blox AT Cmds
- Coexistence Mechanisms: BLE + Wi-Fi 2.4 GHz Arbitration
- DECT-2020 NR: New DECT for IoT and Industrial Use
- EC-GSM-IoT: Extended Coverage GSM for IoT
- EnOcean: Energy Harvesting Wireless Sensor Standard
- Helium Network: Decentralized LoRaWAN Hotspot
- IEEE 802.15.4g: SUN PHY for Smart Grid / Utility
- LPWAN Coverage Mapping: Field Testing, Coverage Predictor
- LPWAN Overview: Low Power Wide Area Network Concept
- LPWAN vs. Cellular IoT Selection Framework
- LTE Cat-1 bis: Single-Antenna Simplified LTE for IoT
- LTE-M (Cat-M1): Higher Data Rate, VoLTE, Mobility Support
- LTE-M vs. NB-IoT: Data Rate, Latency, Mobility Trade-off
- LoRa Gateway Placement: Line-of-Sight, Fresnel Zone
- LoRa Link Budget: Path Loss, Sensitivity, SNR Threshold
- LoRa Modulation: Chirp Spread Spectrum (CSS), SF, BW, CR
- LoRaWAN ADR (Adaptive Data Rate): SF and Power Tuning
- LoRaWAN Activation: OTAA (JoinEUI, DevEUI) vs. ABP
- LoRaWAN Class A: Downlink Window RX1 and RX2
- LoRaWAN Class B: Beacon-Synchronized Downlink Slots
- LoRaWAN Class C: Continuous Receive Window
- LoRaWAN Network Architecture: End Node, Gateway, NS, AS
- LoRaWAN Regional Parameters: EU868, US915, AS923
- MVNO for IoT: M2M SIM, Data Plans, IMSI Management
- Matter over Thread / Wi-Fi / Ethernet Commissioning
- NB-IoT (LTE Cat-NB1/NB2): In-Band, Guard-Band, Stand-Alone
- NB-IoT Coverage Enhancement: CE Mode A and CE Mode B
- NB-IoT PSM (Power Saving Mode): Sleep up to Hours/Days
- NB-IoT eDRX: Extended Discontinuous Reception Cycle
- NB-IoT via Satellite: Non-Terrestrial Network (NTN)
- NFC Forum: Type 1-5 Tags, Peer-to-Peer, Card Emulation
- NFC: NDEF Message Format, RTD, MIME Type Records
- RF Coexistence in Cellular IoT Module: Antenna Design
- RFID Anti-Collision: ALOHA, Binary Tree Protocols
- RFID: LF (125 kHz), HF (13.56 MHz), UHF (860-960 MHz)
- RPMA (Random Phase Multiple Access): Ingenu Protocol
- SIM Selection: Physical SIM, eSIM, iSIM for IoT Devices
- Satellite Direct-to-Device: Starlink, AST SpaceMobile NTN
- Satellite IoT: Orbcomm, Globalstar, Kinéis, Swarm Networks
- Short-Range Radar: 24 GHz, 60 GHz Presence and Gesture
- Sigfox Message Limit: 140 UL / 4 DL per Day
- Sigfox: 100 bps Uplink, 600 bps Downlink, UNB Modulation
- The Things Network (TTN) and ChirpStack Setup
- Thread (IEEE 802.15.4): IPv6, DTLS, OpenThread Stack
- Thread Border Router: External IP to Thread Network Bridge
- UWB (IEEE 802.15.4z): Two-Way Ranging, FiRa Consortium
- UWB Precision Indoor Positioning: cm-Level Accuracy
- Weightless-N, -W, -P: Open LPWAN Standards
- Wi-Fi 6 (802.11ax): OFDMA, MU-MIMO, TWT, BSS Coloring
- Wi-Fi 6E: 6 GHz Band, Lower Congestion, Short Range
- Wi-Fi 7 (802.11be): Multi-Link Operation, 320 MHz Channels
- Wi-Fi HaLow (802.11ah): 900 MHz, Range 1 km, Low Power
- Wi-Fi IEEE 802.11 Bands: 2.4 GHz, 5 GHz, 6 GHz
- Wi-Fi Provisioning: SoftAP, BLE-Assisted, SmartConfig, AP
- Wi-Fi TCP/IP Stack: DHCP, DNS, mDNS (Bonjour) for IoT
- Wi-SUN FAN: Field Area Network for Utility Metering
- Z-Wave: Sub-GHz Mesh, S2 Security Framework
- Zigbee (IEEE 802.15.4): Star, Tree, Mesh Network Topologies
- Zigbee 3.0: Home Automation, Light Link, Smart Energy Profile
- Zigbee Coordinator, Router, End Device Roles
- eSIM (eUICC): RSP (Remote SIM Provisioning) Architecture
- iSIM: SIM Integrated in SoC, GSMA SGP.02 Spec
Middle Engineer· 80
- AMQP 1.0: Advanced Message Queuing Protocol, Broker-Less
- AWS IoT Analytics: Pipeline, Datastore, Dataset, Notebook
- AWS IoT Core: MQTT Broker, Rules, Shadow, Fleet Provisioning
- AWS IoT Device SDK: C, Python, JavaScript, Java
- AWS IoT Events: State Machine for Device Event Detection
- AWS IoT Greengrass v2: Component Model, Nucleus, CLI
- AWS IoT Greengrass: Edge Runtime, Local MQTT, Lambda
- AWS IoT SiteWise: Industrial Asset Data Collection and Modeling
- AWS IoT TwinMaker: Digital Twin for Industrial Assets
- Adafruit IO: Free IoT Platform for Makers
- Akri: Kubernetes Resource Interface for Edge Devices
- Alibaba Cloud IoT Platform: AMQP, Rule Engine, OTA
- Azure Digital Twins: DTDL Model, Graph, Event Routes
- Azure IoT Central: SaaS Platform, Device Templates, Rules
- Azure IoT Edge: Module Runtime, edgeHub, edgeAgent
- Azure IoT Hub DPS: Auto-Provisioning, Enrollment Groups
- Azure IoT Hub: Device Provisioning, Cloud-to-Device, Twin
- Azure Stream Analytics: SQL-Based IoT Stream Processing
- Bosch IoT Suite: IoT Hub, Rollouts, Remote Manager
- CoAP Block-Wise Transfer and Confirmable Messages
- CoAP DTLS Security: Certificate and PSK Mode
- CoAP Methods: GET, POST, PUT, DELETE, OBSERVE
- CoAP over TCP (RFC 8323) for NAT Traversal
- CoAP: Constrained Application Protocol, UDP-Based REST
- Cumulocity IoT: Streaming Analytics, Apama CEP Engine
- DDS (Data Distribution Service): Pub-Sub for Real-Time
- DDS QoS Policies: Reliability, Durability, Deadline
- Eclipse Ditto: Open-Source Digital Twin for IoT
- Eclipse Hono: IoT Messaging Infrastructure, AMQP 1.0
- Eclipse Mosquitto: Lightweight MQTT Broker for Edge
- Eclipse Zenoh: Zero Overhead Pub-Sub for Edge and Fog
- Edge AI: TFLite, OpenVINO, ONNX Runtime at Edge
- FIWARE NGSI-LD: Smart Data Models for Smart Cities
- FIWARE: Smart Data Models, Context Broker, NGSI-LD
- GE Predix: Asset Performance Management Platform
- Google Cloud Dataflow: Beam SDK Stream Processing
- Google Cloud IoT Core (Deprecated): Pub/Sub Integration
- Google Cloud Pub/Sub: Scalable Message Broker for IoT
- Grafana Cloud: Hosted Dashboards, Alerting, On-Call
- Grafana: IoT Dashboard, InfluxDB Source, Alerting
- HTTP REST API: GET, POST, PUT, DELETE for IoT Backend
- Haystack: Smart Building Data Tagging and Semantics
- Huawei IoT OceanConnect: NB-IoT Device Management
- InfluxDB OSS and Cloud: Bucket, Measurement, Tag, Field
- IoT Data Pipeline: Ingestion → Broker → Stream → Store
- IoT Digital Twin Platform: Azure DT, AWS IoT TwinMaker
- IoT Platform Cost Model: Per Device, Per Message, Per GB
- K3s / KubeEdge: Kubernetes for Edge IoT Deployments
- Losant: Low-Code IoT Application Builder
- LwM2M (Lightweight M2M): OMA Standard for Device Mgmt
- LwM2M Bootstrap: Factory, Client-Initiated, Server-Initiated
- LwM2M Objects: Device Info, Firmware Update, Connectivity
- MQTT 5.0: Session Expiry, User Properties, Request-Response
- MQTT Broker Comparison: Mosquitto, HiveMQ, EMQ X, VerneMQ
- MQTT Last Will and Testament (LWT) for Disconnect Detect
- MQTT QoS Levels: At-Most-Once, At-Least-Once, Exactly-Once
- MQTT Retained Messages: Last Known Value on Subscribe
- MQTT Topic Design: Hierarchy, Wildcard # and +
- MQTT over WebSocket: Browser-Based IoT Client
- MQTT-SN: MQTT for Non-TCP Sensor Networks (UDP, Zigbee)
- MQTT: Publish-Subscribe, Broker, Topic, QoS 0/1/2
- Message Broker Clustering: HiveMQ, EMQX HA Cluster
- Node-RED on Edge: Local Automation Without Cloud
- Node-RED: Flow-Based Programming for IoT Integration
- OPC UA Pub-Sub: UADP over UDP/MQTT for IIoT
- OPC UA over TSN: Real-Time Deterministic Communication
- OPC UA: Information Model, Address Space, Method Calls
- PTC ThingWorx: Industrial IoT Application Platform
- Rule Engine: AWS IoT Rules, Node-RED, Azure Stream Analytics
- Server-Sent Events (SSE): Unidirectional Server Push
- Siemens MindSphere: Industrial IoT PaaS
- Sparkplug B: MQTT Namespace for SCADA / IIoT Data
- Stream Processing: Apache Kafka, AWS Kinesis, Azure Event Hub
- ThingsBoard Professional: Multi-Tenancy, White-Label
- ThingsBoard: Open-Source IoT Platform, Rule Chain, Widget
- Time-Series Database: InfluxDB, TimescaleDB, Prometheus
- Ubidots: STEM and Industrial IoT Dashboard Platform
- W3C Thing Description (TD): JSON-LD Property, Action, Event
- WebSocket: Full-Duplex over HTTP for Real-Time IoT
- gRPC: Protobuf-Based RPC for IoT Device Management
Senior Engineer· 80
- AI-Based Anomaly Detection for IoT Security (UEBA)
- BLE Security: OOB Pairing, Passkey, Numeric Comparison
- Battery Charger IC for IoT: BQ25895, MCP73831, CN3791
- Battery Selection: AA, AAA, CR2032, 18650, Polymer Li-Po
- BeagleBone Black / AI: TI AM335x / AM5729 IoT Platform
- Cellular + GNSS Module: Quectel EC21, SIM7080G
- Chip Antenna vs. PCB Trace Antenna vs. External Antenna
- CoAP Security: DTLS, OSCORE (Object Security for CoAP)
- Conformal Coating for Harsh Environment IoT PCB
- DTLS 1.3: Handshake, Session Resumption for UDP IoT
- Device Attestation: RATS (Remote ATtestation procedureS)
- Device Identity: X.509 Certificate, Pre-Shared Key (PSK)
- ESP-IDF: FreeRTOS, NVS, Partition Table, Wi-Fi Driver
- ESP32-C3: RISC-V Single-Core, Wi-Fi 802.11b/g/n, BLE 5.0
- ESP32-C6: RISC-V, Wi-Fi 6, BLE 5.3, 802.15.4 (Thread/Zigbee)
- ESP32-H2: RISC-V, BLE 5.3, 802.15.4 Only (No Wi-Fi)
- ESP32-P4: Dual-Core Cortex-M + High-Performance AI
- ESP32: Xtensa LX6 Dual-Core, Wi-Fi 802.11b/g/n, BLE 5.0
- ETSI EN 303 645: Cybersecurity for Consumer IoT Baseline
- EU Cyber Resilience Act (CRA): Mandatory IoT Requirements
- Energy Harvesting: Solar, TEG, RF, Vibration for IoT
- FOTA (Firmware Over the Air) for Resource-Constrained MCU
- Factory Test Fixture for IoT Device: RF, Functional Test
- Firmware Update Security: Signed Image, Anti-Rollback
- GDPR Article 25: Privacy by Design for IoT Products
- GSMA IoT Security Guidelines: Endpoint, Network, Service
- Hardware Root of Trust: TPM 2.0, ARM TrustZone-M
- IEC 62443-4-2: Component Security Level for IoT Devices
- IP Rating for Outdoor IoT: IP65, IP67, IP68 Enclosure Design
- IoT Firmware Architecture: State Machine, Event-Driven
- IoT MCU Selection: ESP32, nRF52840, STM32WB, RP2040
- IoT Module (Stamp Module): ESP32-WROOM, nRF9161-DK
- IoT PCB Design: Antenna Keep-Out, RF Ground Plane, ESD
- IoT Sensor Node BOM: MCU + Sensor + Radio + Battery + Case
- IoT Threat Landscape: Botnet (Mirai), Eavesdropping, DoS
- LPWAN Module: Quectel BG95, u-blox SARA-R410, Telit ME910
- LoRa Module: SX1276, SX1262, LLCC68 with SPI Interface
- LoRaWAN Security: AES-128 NwkSKey and AppSKey
- Low-Power Design: RTC Wake, Interrupt-Driven, Tickless
- MQTT Security: TLS, ACL (Access Control List), Auth Plugin
- Matter SDK: ESP32, nRF52840, Silicon Labs Implementation
- Matter Security: PASE, CASE, Node Operational Certificate
- Mutual TLS (mTLS): Client Certificate Authentication
- NB-IoT Security: LTE Security, 5G AKA Authentication
- NIST IR 8259: IoT Device Cybersecurity Capability Core
- NVIDIA Jetson Nano / Orin: Edge AI + IoT Gateway
- Network Segmentation: IoT VLAN Isolation from IT Network
- OAuth 2.0 for IoT: Device Authorization Grant (RFC 8628)
- OWASP IoT Top 10: Insecure Passwords, Outdated Firmware
- OpenID Connect: ID Token for IoT Device Identity
- PKI for IoT: CA Hierarchy, Certificate Lifecycle, ACME
- Penetration Testing IoT: UART, JTAG, BLE, Wi-Fi Attack
- Post-Quantum TLS for IoT: Hybrid Classical + PQC
- Power Budget Calculation: Active, Idle, Deep-Sleep Current
- Privacy by Design: Data Minimization in IoT
- Production Programming: SWD, UART, USB DFU in Factory
- Quantum-Safe Cryptography for IoT: Kyber, Dilithium
- Raspberry Pi 4/5: Linux SBC for IoT Gateway
- Raspberry Pi Pico: RP2040, Dual Cortex-M0+, PIO
- Regulatory Approval: FCC ID, CE Mark, IC, ANATEL for Module
- Runtime Integrity Monitoring: TEE-Based App Verification
- SAML21 / SAMD21: Ultra-Low-Power Cortex-M0+ MCU
- SBOM (Software Bill of Materials) for IoT Firmware
- STM32WB55: ARM Cortex-M4 + M0+, BLE 5.3, 802.15.4
- STM32WL: ARM Cortex-M4 + M0+, Sub-GHz LoRa Radio
- Secure Boot: Chain of Trust, Signature Verification
- Secure Element (SE): ATECC608B, SE050 Key Storage
- Secure Key Provisioning at Manufacturing: HSM in Factory
- Side-Channel Attack on IoT: Power Analysis, Timing Attack
- TLS 1.3 on MCU: mbedTLS, wolfSSL, Bear SSL Libraries
- Thread Security: MLE (Mesh Link Establishment), DTLS
- U.FL / IPEX Connector for External Antenna Connection
- Vulnerability Disclosure: CVE, Coordinated Disclosure Policy
- Wi-Fi + BLE Module: ATWINC1510, CC3235, CYW43438
- Wireless Charging (Qi) for IoT Wearable Device
- Zero-Trust for IoT: Micro-Segmentation, Device Posture
- Zigbee Security: CCM*, AES-128, Trust Center Link Key
- nRF Connect SDK: Zephyr RTOS Base, West Build System
- nRF52840: ARM Cortex-M4, BLE 5.3, 802.15.4, USB, NFC
- nRF9160: LTE-M / NB-IoT SiP with ARM Cortex-M33
Distinguished Engineer· 40
- 5G Private Network for IIoT: Network Slicing, URLLC
- 6G and IoT: Sub-THz, AI-Native RAN, RIS Integration
- AI at the Edge: TFLite Micro on ESP32 for Inference
- Air Quality IoT: PM2.5, PM10, CO2, VOC, NO2 Sensing
- Asset Administration Shell (AAS): Industry 4.0 Digital Twin
- Autonomous IoT: Self-Healing, Self-Configuring Networks
- Autonomous Mobile Robot (AMR): IoT-Connected Fleet Mgmt
- BACnet and Modbus IoT Gateway for Building Automation
- Blockchain for IoT: Immutable Audit Trail, Smart Contract
- Building Energy Management System (BEMS) IoT Integration
- Cold Chain Monitoring: Temperature Logger, Blockchain Record
- Collaborative Robot (Cobot) IoT: Force Sensing, Safety
- Digital Thread: Product Lifecycle IoT Data Continuity
- EV Charging Infrastructure IoT: OCPP 2.0, CSMS
- Environmental Noise Monitoring: Leq, Lmax, Class 1 IEC
- Federated Learning for IoT: Privacy-Preserving On-Device
- Flood and Landslide Early Warning System IoT Design
- Healthcare IoT: Continuous Glucose Monitor, Cardiac Patch
- Hospital Asset Tracking: RFID, BLE Beacon, UWB RTLS
- Industrial IoT (IIoT): OT + IT Convergence Architecture
- KNX Smart Home: IP-Based Building Control Protocol
- Livestock Monitoring: Ear Tag, Collar GPS, Rumination IoT
- Maritime IoT: AIS, VSAT, LoRa, Buoy Sensor Networks
- Metaverse and IoT: Physical-Digital Integration Concepts
- Mining IoT: Personnel Tracking, Gas Detection, Wearable
- NAMUR Open Architecture (NOA): Sensor to Cloud for Process
- OPC UA TSN: Real-Time Industrial IoT Communication
- Oil and Gas IoT: Pipeline Leak Detection, Flow Monitoring
- Precision Agriculture: UAV, Satellite, Ground Sensor Fusion
- Predictive Maintenance AI: Remaining Useful Life (RUL) ML
- Quantum IoT: Quantum Key Distribution for Secure Channels
- Remote Patient Monitoring (RPM): BLE Hub to EHR
- Smart Aquaculture: Water Quality, Feeding Automation IoT
- Smart City Parking: Magnetic Sensor, LoRa, MQTT
- Smart Factory KPIs: OEE, TEEP, FPY, MTBF via IoT
- Smart Grid AMI: Advanced Metering Infrastructure Architecture
- Smart Irrigation IoT: Soil Moisture, Weather-Based Scheduling
- Time-Sensitive Networking (TSN) IEEE 802.1Qbv for IIoT
- V2G IoT: ISO 15118 Plug & Charge, Smart Charging
- Vibration Analysis for PdM: FFT, Envelope, Kurtosis