# FSS Technology

> FSS Technology builds custom IoT hardware, embedded firmware, and Azure-native cloud platforms for luxury hospitality, marine, and industrial clients. Based in Bielsko-Biała, Poland. Established 2011.

## Solutions
- [IoT](https://fss.cc/iot/): embedded devices + firmware
- [Cloud](https://fss.cc/cloud/): Azure-native backends
- [AI](https://fss.cc/ai/): ML, anomaly detection, document AI
- [AI Agents](https://fss.cc/ai-agents/): task-oriented automation
- [Integrations](https://fss.cc/integrations/): ERP, PMS, payments, APIs
- [DevOps](https://fss.cc/devops/): CI/CD, cloud ops

## Engineering blog

- [Kryptografia postkwantowa w IoT: jak przygotować flotę](https://fss.cc/kryptografia-postkwantowa-iot/): Standardy FIPS 203, 204 i 205 są już opublikowane, a regulatorzy wskazali 2030 i 2035 jako daty graniczne. Sprawdzamy, co kryptografia postkwantowa oznacza dla urządzeń IoT o ograniczonej pamięci i jak zaplanować migrację floty.
- [Pamięć flash w IoT: wear leveling i LittleFS w praktyce](https://fss.cc/pamiec-flash-iot-wear-leveling-littlefs/): Ile zapisów wytrzyma kość flash w urządzeniu IoT i jak zaprojektować firmware, żeby przetrwała 10 lat w terenie. NOR vs NAND, wear leveling, LittleFS i power-loss resilience.
- [RFID UHF EPC Gen2 w logistyce i inwentaryzacji IoT](https://fss.cc/rfid-uhf-epc-gen2-logistyka-iot/): RFID UHF EPC Gen2 pozwala odczytać setki znaczników na sekundę bez linii wzroku. Wyjaśniamy zasięg, dobór anten, koszty i integrację z systemami IoT.
- [Protokół DDS w IoT: komunikacja czasu rzeczywistego](https://fss.cc/protokol-dds-iot-komunikacja-czasu-rzeczywistego/): Protokół DDS to standard OMG do komunikacji czasu rzeczywistego w systemach rozproszonych. Wyjaśniamy RTPS, polityki QoS, DDS-XRCE na mikrokontrolerach i to, kiedy DDS wygrywa z MQTT.
- [Embedded Linux w IoT: Yocto Project i Buildroot w praktyce](https://fss.cc/embedded-linux-iot-yocto-project/): Kiedy mikrokontroler przestaje wystarczać, wchodzi embedded Linux. Porównujemy Yocto Project i Buildroot, wymagania sprzętowe oraz produkcyjne aktualizacje OTA A/B.
- [Protokół OCPP 2.0.1: integracja stacji ładowania EV](https://fss.cc/protokol-ocpp-stacje-ladowania-ev/): Protokół OCPP to otwarty standard komunikacji między stacją ładowania EV a systemem zarządzania. Omawiamy 1.6J vs 2.0.1, bezpieczeństwo, smart charging i wdrożenie w firmware.
- [Kalibracja czujników IoT: dryft, metody i kompensacja](https://fss.cc/kalibracja-czujnikow-iot/): Jak zaplanować kalibrację czujników IoT — od metod jedno- i wielopunktowych, przez kompensację temperatury, po przechowywanie współczynników w NVM i rekalibrację przez OTA.
- [IEC 62443 w IoT: bezpieczeństwo systemów przemysłowych](https://fss.cc/iec-62443-bezpieczenstwo-systemow-przemyslowych/): IEC 62443 porządkuje bezpieczeństwo systemów automatyki: dzieli role, definiuje poziomy Security Level i wskazuje konkretne wymagania techniczne dla urządzeń IIoT. Przewodnik dla producentów i integratorów.
- [NFC w IoT: parowanie, konfiguracja i uwierzytelnianie](https://fss.cc/nfc-w-iot-parowanie-i-uwierzytelnianie/): NFC pozwala sparować i skonfigurować urządzenie IoT jednym przyłożeniem telefonu — bez ekranu, bez hotspotu i nawet bez zasilania. Przewodnik po standardach, bezpieczeństwie i projektowaniu anteny.
- [Projektowanie obudowy IoT: stopień IP, materiały, termika](https://fss.cc/projektowanie-obudowy-urzadzenia-iot/): Jak dobrać stopień ochrony IP, materiał i uszczelnienie obudowy urządzenia IoT oraz zapanować nad termiką, anteną i EMC — praktyczny przewodnik inżynierski.
- [Protokół DALI-2: inteligentne sterowanie oświetleniem](https://fss.cc/protokol-dali-2-sterowanie-oswietleniem/): Protokół DALI-2 zamienia oprawy oświetleniowe w adresowalne urządzenia IoT. Wyjaśniamy magistralę, D4i, DALI+ i budowę bramki DALI-2 do MQTT.
- [PROFINET i EtherCAT: przemysłowy Ethernet w praktyce](https://fss.cc/profinet-ethercat-przemyslowy-ethernet/): PROFINET i EtherCAT to dwa dominujące standardy przemysłowego Ethernetu. Wyjaśniamy różnice w determinizmie, czasach cyklu i integracji z warstwą IIoT.
- [Protokół Z-Wave w IoT: sieć mesh dla inteligentnych budynków](https://fss.cc/protokol-z-wave-iot-siec-mesh/): Protokół Z-Wave to niezawodna sieć mesh w paśmie sub-GHz, popularna w automatyce budynkowej i hotelarstwie. Wyjaśniamy działanie, zasięg, Z-Wave Long Range i bezpieczeństwo S2.
- [AWS IoT Core: przewodnik dla producentów urządzeń IoT](https://fss.cc/aws-iot-core-dla-producentow-urzadzen/): Zarządzana platforma AWS IoT Core łączy urządzenia przez MQTT i X.509. Poznaj Device Shadow, Rules Engine, Fleet Provisioning, Greengrass i model kosztów.
- [Protokół KNX w inteligentnym budynku: przewodnik IoT](https://fss.cc/protokol-knx-inteligentny-budynek-iot/): Otwarty standard automatyki budynkowej: topologia magistrali KNX, media TP/RF/IP, KNX Secure i integracja inteligentnego budynku z chmurą IoT.
- [Protokół BACnet w IoT: automatyka budynkowa i chmura](https://fss.cc/protokol-bacnet-automatyka-budynkowa-iot/): Jak działa protokół BACnet, czym różnią się BACnet/IP, MS/TP i BACnet/SC oraz jak bezpiecznie połączyć automatykę budynkową z platformami IoT i chmurą.
- [SBOM dla urządzeń IoT: bezpieczeństwo łańcucha dostaw](https://fss.cc/sbom-dla-urzadzen-iot/): SBOM dla urządzeń IoT to maszynowo czytelny spis komponentów firmware. Wyjaśniamy formaty SPDX i CycloneDX, generowanie w CI/CD, VEX oraz wymogi CRA.
- [Cyber Resilience Act (CRA): obowiązki producentów IoT](https://fss.cc/cyber-resilience-act-cra-urzadzenia-iot/): Cyber Resilience Act (CRA) nakłada obowiązkowe wymagania cyberbezpieczeństwa na urządzenia IoT. Wyjaśniamy terminy 2026/2027, wymagania secure-by-design i jak przygotować firmware.
- [EMC w urządzeniach IoT: projektowanie pod certyfikację](https://fss.cc/kompatybilnosc-elektromagnetyczna-emc-iot/): Kompatybilność elektromagnetyczna (EMC) przesądza o certyfikacji CE i FCC urządzenia IoT. Jak projektować PCB, filtrację i ekranowanie, by przejść badania za pierwszym razem.
- [Protokol 6LoWPAN w IoT: IPv6 w sieciach niskiej mocy](https://fss.cc/protokol-6lowpan-iot/): 6LoWPAN pozwala urzadzeniom IoT o niskiej mocy komunikowac sie natywnie przez IPv6. Wyjasniamy kompresje naglowkow, fragmentacje i role border routera.
- [Bluetooth Mesh w IoT: architektura sieci i zastosowania](https://fss.cc/bluetooth-mesh-iot/): Bluetooth Mesh zamienia zwykłe urządzenia BLE w samonaprawiającą się sieć mesh dla oświetlenia, budynków i hoteli — architektura, zarządzane rozgłaszanie i bezpieczeństwo.
- [Projektowanie anten w urzadzeniach IoT: PCB, chip czy zewnetrzna](https://fss.cc/projektowanie-anten-iot/): Jak wybrac antene do urzadzenia IoT? Porownujemy anteny PCB, chip i zewnetrzne oraz omawiamy dopasowanie impedancji, kluczowe parametry RF i zasady projektu plytki.
- [Satelitarny IoT: łączność NTN dla urządzeń w terenie](https://fss.cc/satelitarny-iot-ntn-lacznosc/): Satelitarny IoT (NTN) umożliwia komunikację urządzeń tam, gdzie nie sięgają sieci naziemne. Wyjaśniamy standardy 3GPP, konstelacje LEO/GEO, koszty i projektowanie sprzętu.
- [Secure Element w IoT: sprzętowy fundament bezpieczeństwa](https://fss.cc/secure-element-iot-sprzetowy-root-of-trust/): Secure Element to dedykowany chip kryptograficzny, który przechowuje klucze i tożsamość urządzenia IoT poza pamięcią MCU. Wyjaśniamy, jak działa i kiedy warto go zastosować.
- [Single Pair Ethernet (SPE) w przemysłowym IoT: 10BASE-T1L](https://fss.cc/single-pair-ethernet-spe-przemyslowy-iot/): Single Pair Ethernet (SPE) i standard 10BASE-T1L przenoszą IP na jedną parę żył — do 1000 m zasięgu i zasilanie w jednym kablu. Przewodnik po zastosowaniach w IIoT.
- [Time-Sensitive Networking (TSN) w przemysłowym IoT](https://fss.cc/time-sensitive-networking-tsn-przemyslowy-iot/): Time-Sensitive Networking (TSN) wnosi deterministyczna, niskolatencyjna komunikacje do standardowego Ethernetu — fundament konwergencji IT/OT w przemyslowym IoT.
- [Magistrala CAN i CANopen w przemysłowym IoT](https://fss.cc/magistrala-can-canopen-przemyslowy-iot/): Jak działa magistrala CAN i CANopen w przemysłowym IoT: ramki, CAN FD, PDO/SDO oraz integracja sieci CAN z chmurą przez bramkę MQTT i OPC UA.
- [IO-Link w przemysłowym IoT: cyfrowy standard czujników](https://fss.cc/io-link-przemyslowy-iot-standard-czujnikow/): IO-Link to punkt-punkt cyfrowy interfejs czujników i aktuatorów w IIoT: zasada działania, parametry COM1-COM3, IODD i integracja z chmurą.
- [Power over Ethernet (PoE) w IoT: zasilanie i dane w kablu](https://fss.cc/power-over-ethernet-poe-w-iot/): Power over Ethernet (PoE) w IoT laczy zasilanie i dane w jednym kablu Ethernet — poznaj standardy 802.3af/at/bt, klasy mocy do 90 W i zasady projektowania urzadzen.
- [Czujniki MEMS w IoT: budowa, rodzaje i dobór](https://fss.cc/czujniki-mems-iot/): Czym są czujniki MEMS, jak działają i jak dobrać akcelerometr, żyroskop czy barometr do projektu IoT — parametry, zastosowania i integracja na PCB.
- [Fuzja sensoryczna w IoT: łączenie danych z czujników](https://fss.cc/fuzja-sensoryczna-iot-sensor-fusion/): Czym jest fuzja sensoryczna w IoT, jak filtr Kalmana i komplementarny łączą dane z IMU 9-DoF oraz kiedy przetwarzać je na brzegu sieci.
- [Energy harvesting w IoT: zasilanie czujników bez baterii](https://fss.cc/energy-harvesting-w-iot-zasilanie-czujnikow/): Jak zasilać czujniki IoT bez baterii energią z otoczenia — fotowoltaika, TEG, drgania i RF, układy PMIC oraz budżet energetyczny urządzenia.
- [eSIM i iSIM w IoT: łączność komórkowa dla urządzeń](https://fss.cc/esim-isim-lacznosc-komorkowa-iot/): eSIM i iSIM zmieniają sposób łączenia urządzeń IoT z sieciami komórkowymi — zdalny provisioning profili, jeden numer katalogowy na cały świat i niższy koszt eksploatacji floty.
- [Zephyr RTOS for IoT: A Real-Time Operating System](https://fss.cc/zephyr-rtos-iot/): Zephyr RTOS is an open-source real-time operating system for IoT. Explore its kernel, networking stack, comparison with FreeRTOS, and OTA and security support.
- [Secure Boot in IoT: Trusted Startup and Encrypted Flash](https://fss.cc/secure-boot-iot-bezpieczny-rozruch/): Secure boot protects IoT devices against firmware tampering. Learn about the Root of Trust, encrypted flash, anti-rollback, and deployment on ESP32 and STM32.
- [Time-Series Databases in IoT: The Complete Guide](https://fss.cc/baza-danych-szeregow-czasowych-iot/): A time-series database is the foundation of IoT telemetry. We explain how a TSDB works, which one to choose, and how to design retention, downsampling, and an efficient data model.
- [MQTT Sparkplug B: Interoperability in Industrial IoT](https://fss.cc/mqtt-sparkplug-b-przemyslowy-iot/): MQTT Sparkplug B adds a standardized namespace, Protobuf encoding, and state management to MQTT, delivering device interoperability in industrial IoT.
- [Edge Computing in IoT: Architecture, Benefits, and Deployment](https://fss.cc/edge-computing-w-iot/): Edge computing in IoT moves processing to the edge of the network, close to the sensors. We explain the layered architecture, benefits, protocols, and practical deployment.
- [CE and FCC Certification for IoT Devices: The Complete Guide](https://fss.cc/certyfikacja-ce-fcc-urzadzen-iot/): IoT device certification step by step: the CE mark and RED directive, FCC Part 15, EMC and radio standards, EN 18031 cybersecurity, plus real costs and timelines.
- [LwM2M in IoT: The Standard for Device Fleet Management](https://fss.cc/protokol-lwm2m-zarzadzanie-flota-urzadzen-iot/): The LwM2M protocol (OMA Lightweight M2M) is a standard for managing IoT device fleets: bootstrap, registration, OTA, and DTLS security over CoAP.
- [5G RedCap in IoT: A Guide to NR-Light](https://fss.cc/5g-redcap-iot-nr-light/): 5G RedCap (NR-Light) is a lightweight 5G variant for mid-throughput IoT. Learn its parameters, how it compares with NB-IoT and LTE-M, and its use cases.
- [UWB Positioning in IoT: Precise RTLS Location](https://fss.cc/pozycjonowanie-uwb-iot-rtls/): UWB (Ultra-Wideband) positioning delivers location accuracy of 10–30 cm. We explain how RTLS works, compare the technologies, and cover deployment in IoT.
- [OPC UA in Industrial IoT: Architecture and Security](https://fss.cc/opc-ua-przemyslowy-iot/): OPC UA is an open communication standard for industrial IoT. Learn its architecture, information model, client-server and PubSub modes, and security.
- [Bluetooth Low Energy in IoT: Protocol, GATT, and Range](https://fss.cc/bluetooth-low-energy-iot/): Bluetooth Low Energy in IoT: how BLE works, the GAP and GATT layers, range and power consumption, Bluetooth mesh, beacons, and when to choose BLE for a project.
- [Wi-Fi HaLow (802.11ah) in IoT: Range and Use Cases](https://fss.cc/wifi-halow-802-11ah-iot/): Wi-Fi HaLow (IEEE 802.11ah) is a sub-1 GHz standard for IoT: up to 1 km range, up to 8,191 devices, and low power draw. Learn its parameters and use cases.
- [The IoT Gateway: Architecture and Edge Protocols](https://fss.cc/bramka-iot-gateway-architektura-protokoly/): What an IoT gateway is, which protocols it supports, and how to design its architecture and security. A practical guide from FSS.
- [Energy Efficiency in IoT: How to Extend Battery Life](https://fss.cc/energooszczednosc-w-iot-praca-baterii/): How to achieve energy efficiency in IoT and extend battery life — sleep modes, LPWAN networks, the energy budget, and energy harvesting in practice.
- [Predictive Maintenance in IIoT: The Complete Guide](https://fss.cc/predykcyjne-utrzymanie-ruchu-iiot/): Predictive maintenance in IIoT lets you anticipate machine failures using sensors and data analysis. Learn the architecture, ROI, and step-by-step deployment.
- [Smart Metering: An IoT Guide](https://fss.cc/inteligentne-opomiarowanie-smart-metering-iot/): What smart metering is and how to build a reliable smart metering system in IoT — AMI architecture, protocols, networks, and security.
- [IoT Device Provisioning: Zero-Touch Fleet Onboarding](https://fss.cc/provisioning-urzadzen-iot-zero-touch-onboarding/): What IoT device provisioning is and how to implement secure, automated zero-touch fleet onboarding — from device identity to cloud registration.
- [CoAP in IoT: How It Works and When to Use It](https://fss.cc/protokol-coap-w-iot/): CoAP is a lightweight communication standard for resource-constrained IoT devices. We explain how it works, how to secure it with DTLS, and when to choose it over MQTT.
- [Zigbee in IoT: Mesh Network, Profiles, and Use Cases](https://fss.cc/protokol-zigbee-iot-siec-mesh/): The Zigbee protocol in IoT — how the mesh network works, how it differs from Matter, Thread, BLE, and Wi-Fi, and when it is worth choosing for deployment.
- [Digital Twins in IoT: Architecture and Deployment](https://fss.cc/cyfrowe-blizniaki-iot/): What digital twins in IoT are, what their architecture looks like, and how to deploy them in industry step by step.
- [PCB Assembly: SMT and THT Technologies in Electronics](https://fss.cc/montaz-pcb-smt-tht/): What PCB assembly involves, how SMT differs from THT, and what the process and quality control look like.
- [PCB Assembly: Solder Paste, Stencil, and Pick-and-Place](https://fss.cc/obsadzanie-plytek-pcb/): How PCB assembly works: solder paste, the stencil, pick-and-place machines, plus the most common defects and how to avoid them.
- [Matter and Thread: The Future of IoT Interoperability](https://fss.cc/standard-matter-thread-interoperacyjnosc-iot/): The Matter standard and the Thread network are unifying the IoT world. We explain how they work and what they mean for device manufacturers.
- [AI Agents in Industrial IoT: From Predictive Maintenance to Autonomous Operations](https://fss.cc/ai-agents-industrial-iot/): AI agents move IoT beyond dashboards into systems that perceive, reason, and act. Here is how to architect them safely across factories, hotels, and yachts.
- [Kubernetes (AKS) for IoT Backends: Multi-Tenant Architecture That Scales to Millions of Devices](https://fss.cc/aks-iot-multitenant-architecture-millions-devices/): An engineering guide to running multi-tenant IoT backends on Azure Kubernetes Service: ingest, processing, KEDA autoscaling, GitOps, time-series storage and cost control at millions-of-devices scale.
- [CI/CD for Embedded Firmware: GitHub Actions + PlatformIO Pipeline for ESP32](https://fss.cc/cicd-embedded-firmware/): Firmware deserves the same CI/CD discipline as cloud code. Here is a battle-tested GitHub Actions pipeline for ESP32 and STM32 with matrix builds, HIL, and signed OTA delivery.
- [Cold-Chain IoT: LoRa-Based Temperature Monitoring for Pharma and Food](https://fss.cc/cold-chain-iot-lorawan-temperature-monitoring/): How to design LoRaWAN cold-chain monitoring for pharmaceuticals and food: sensor selection, enclosure design, gateway placement, compliance, alerting and a real 50-truck cost breakdown.
- [GEST in Action: How an IoT Service-Call System Cuts Hotel Response Time and Lifts Guest Satisfaction](https://fss.cc/gest-iot-service-call-hotel-response-time-roi/): A deep look at GEST, the wireless in-room service-call system that replaces phones and door tags with one-press buttons, staff apps, analytics dashboards, and measurable NPS lift in luxury hotels.
- [LoRaWAN vs NB-IoT vs LTE-M: Choosing the Right Network for Asset Tracking](https://fss.cc/lorawan-nbiot-ltem-asset-tracking/): LoRaWAN, NB-IoT, and LTE-M each win different asset-tracking scenarios. A side-by-side technical comparison with TCO numbers and reference architectures.
- [Modbus RTU and TCP for Retrofit Industrial IoT: Bridging Legacy PLCs to Azure](https://fss.cc/modbus-rtu-tcp-retrofit-industrial-iot-azure/): A field-tested guide to bridging decades-old Modbus PLCs into Azure IoT Hub: protocol fundamentals, RS-485 wiring, ESP32 gateway code, polling strategy, and security for brownfield factories.
- [PMS Integration for Smart Hotels: Connecting Opera, Mews and Apaleo to IoT Room Controls](https://fss.cc/pms-integration-smart-hotels-opera-mews-apaleo/): A practical engineering guide to connecting Oracle Opera Cloud, Mews and Apaleo with IoT room controls, GEST service-call workflows, energy management and guest preference automation.
- [Building a SwiftUI Companion App for BLE IoT Devices: Patterns and Pitfalls](https://fss.cc/swiftui-ble-companion-app-patterns-pitfalls/): A practical guide to building production SwiftUI companion apps for BLE IoT devices: connection state machines, async/await CoreBluetooth wrappers, OTA flows, background limits, and App Store gotchas.
- [TinyML on ESP32-S3: Running TensorFlow Lite Micro for Edge AI Inference](https://fss.cc/tinyml-esp32-s3/): Edge ML on ESP32-S3 is no longer a science project. Here is how to deploy TFLite Micro models for keyword spotting and anomaly detection with real benchmarks.
- [Marine Navigation Technology: AIS, GPS and Vessel Monitoring with IoT](https://fss.cc/yacht-navigation-iot/): How modern superyachts use AIS, GPS, and IoT sensor monitoring for navigation, safety, and fleet management — the YIS platform from FSS Technology.
- [X.509 Certificates for IoT: Zero-Trust Device Authentication](https://fss.cc/x509-certificates-iot/): How to implement X.509 certificate-based device authentication for IoT — CA hierarchy, device provisioning, mutual TLS, certificate rotation, and Azure IoT Hub DPS integration.
- [Real-Time IoT Dashboard with WebSockets and React: Architecture Guide](https://fss.cc/websocket-realtime-dashboard/): How to build a real-time IoT monitoring dashboard — WebSocket architecture with Azure SignalR, React state management for high-frequency updates, and live charts.
- [Smart Superyacht Technology: IoT on Luxury Vessels](https://fss.cc/superyacht-iot-technology/): How FSS Technology builds connected superyachts — GEST service calls, OMNIYON A/V control, YIS vessel monitoring, and Nuvlock smart access in a single stack.
- [Smart Access Control: Beyond the RFID Card with Perrugi](https://fss.cc/smart-access-control/): How next-generation smart access control combines WiFi 6, NFC, biometrics, and mobile apps — the Nuvlock system from FSS Technology for luxury hotels and superyachts.
- [IoT Prototype to Production: Scaling from 10 to 10,000 Units](https://fss.cc/prototype-to-production-iot/): The practical challenges of scaling IoT hardware from prototype to mass production — DFM, component sourcing, manufacturing partner selection, test strategy, and yield improvement.
- [OTA Firmware Updates at Scale: IoT Fleet Update Architecture](https://fss.cc/ota-firmware-updates-iot-scale/): How to implement reliable OTA firmware updates for large IoT fleets — staged rollouts, rollback, delta updates, and Azure IoT Hub Device Twin integration.
- [MQTT Protocol for IoT: QoS, Retained Messages and Last Will Explained](https://fss.cc/mqtt-protocol-iot/): Complete guide to MQTT for IoT — QoS levels, retained messages, Last Will and Testament, topic design, and broker selection for production deployments.
- [Luxury Yacht A/V Control: How OMNIYON Unifies Entertainment and Comfort](https://fss.cc/luxury-yacht-av-control/): How unified A/V and comfort control works on superyachts — streaming integration, multi-zone audio, climate and lighting control, and the OMNIYON system from FSS Technology.
- [Testing IoT Devices: From Unit Tests to Field Validation](https://fss.cc/iot-testing-strategies/): Comprehensive testing strategy for IoT hardware and firmware — unit tests, hardware-in-loop testing, network simulation, field validation, and regression testing for production releases.
- [IoT Security Best Practices: Protecting Connected Devices from Attack](https://fss.cc/iot-security-best-practices/): Practical IoT security checklist — device authentication, encrypted firmware, secure boot, TLS 1.3, hardware security modules, network segmentation for production devices.
- [From Idea to Shipped IoT Product: The Complete Development Guide](https://fss.cc/iot-product-development-guide/): End-to-end guide to IoT product development — from concept through PCB design, firmware, cloud, mobile app, manufacturing, and post-launch support.
- [Building an IoT Data Pipeline with Azure Event Hubs and Azure Functions](https://fss.cc/iot-data-pipeline-azure/): Step-by-step guide to scalable IoT data pipelines on Azure — from IoT Hub routing to Event Hubs, Azure Functions processing, and Time Series storage.
- [CE and FCC Certification for IoT Devices: What Manufacturers Need to Know](https://fss.cc/iot-certification-ce-fcc/): Practical guide to CE and FCC certification for IoT hardware — RED directive, FCC Part 15, pre-compliance testing, test houses, timelines, and certification strategies.
- [Smart Hotel Technology: IoT Service Call Systems for Luxury Hospitality](https://fss.cc/hotel-iot-service-call/): How modern luxury hotels deploy IoT wireless service call systems — BLE buttons, real-time staff routing, PMS integration, and analytics with GEST.
- [FreeRTOS for IoT: Real-Time Operating System on ESP32 and STM32](https://fss.cc/freertos-iot-firmware/): How to use FreeRTOS in IoT firmware — tasks, queues, semaphores, watchdog patterns, and real-world multi-task architecture.
- [ESP32 vs STM32: Which MCU for Your IoT Project?](https://fss.cc/esp32-vs-stm32-iot-guide/): Practical comparison of ESP32 and STM32 for IoT hardware — power, connectivity, ecosystem, and when to choose each based on 10+ years deploying both.
- [Protecting IoT Firmware: Signing, Encryption and Secure Boot](https://fss.cc/encrypted-firmware-iot/): How to protect IoT firmware from reverse engineering and tampering — firmware signing, flash encryption, secure boot chains, and OTA security for ESP32 and STM32 devices.
- [Edge Computing for IoT: When to Process on Device vs in the Cloud](https://fss.cc/edge-computing-iot/): Decision framework for IoT edge vs cloud processing — latency requirements, bandwidth costs, offline operation, privacy constraints, and ML inference at the edge on ESP32-S3.
- [How to Design a Custom IoT PCB: From Schematic to Fabrication](https://fss.cc/custom-iot-pcb-design-guide/): Step-by-step guide to custom IoT PCB design — schematic capture, component selection, RF antenna layout, power design, DFM rules, and fabrication file generation.
- [BLE vs WiFi for IoT Devices: Power, Range, and When to Use Each](https://fss.cc/ble-wifi-iot-comparison/): Practical comparison of BLE and WiFi for IoT — power consumption, range, mesh capabilities, and real battery life data from deployed FSS devices.
- [Designing Battery-Powered IoT Devices for 5-Year Runtime](https://fss.cc/battery-powered-iot-design/): How to design IoT hardware that runs for years on a single battery — power profiling, MCU sleep modes, duty cycle optimisation, and real results from FSS deployed devices.
- [Azure IoT Hub for Device Manufacturers: Complete Integration Guide](https://fss.cc/azure-iot-hub-device-manufacturers/): How device manufacturers use Azure IoT Hub — device provisioning, D2C messaging, Device Twins, direct methods, and production-grade architecture patterns.