IoT-Hub
The IoT knowledge hub
Articles, protocols, hardware, a verified company directory, a technical glossary and a live spec comparator, the open reference for the Internet of Things, in one place.
Latest articles
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LoRaWAN for Smart Cities: Architecture and Use CasesA water meter in a Valencia basement has sent its daily reading for eight years on the same battery. That is the promise of LoRaWAN for smart cities: sensors th
IoT Sensors: Types, Protocols and Applications in 2026IoT sensors convert physical-world measurements — temperature, gases, vibration, light, position — into continuous, actionable, scalable digital data. This guid
MQTT Broker: What It Is, How It Works, Best Options 2026An MQTT broker is the central messaging server of an IoT network: it receives the data that devices publish and distributes it to every subscribed application.
Key protocols
See all- B
BACnet
Open protocol for building automation (HVAC)
- Tipo
- Wired
- Alcance
- Edificio / campus
- Consumo
- Low
Bluetooth Low Energy (BLE)
Ultra-low energy connectivity for wearables and proximity
- Tipo
- Short-range
- Alcance
- 10-100 m según PHY
- Consumo
- Ultra-low
- C
CAN bus
Robust serial bus for automotive and industry
- Tipo
- Wired
- Alcance
- Bus (depende de la velocidad)
- Consumo
- Low
CoAP protocolo: REST sobre UDP que cabe en 8 KB de RAM
CoAP (RFC 7252) lleva GET/POST/PUT/DELETE a dispositivos con 8 KB de RAM sobre UDP. Aprende cómo funciona Observe, DTLS
- Tipo
- Request/Response
- Alcance
- —
- K
KNX
Worldwide standard for home and building automation
- Tipo
- Wired
- Alcance
- Bus de edificio
- Consumo
- Low
- L
LTE-M
Cellular IoT with mobility and voice
- Tipo
- Cellular
- Alcance
- Cobertura celular del operador
- Consumo
- Low
Featured hardware
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Compare specs side by side
Pick 2–4 protocols or hardware boards and compare their specs in an interactive table.
From the glossary
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Ecosystem companies
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Adafruit
Hardware manufacturer · 🇺🇸 US
Open hardware, breakouts and learning for makers
Arduino
Hardware manufacturer · 🇮🇹 IT
Open source hardware and software platform for makers
Bosch Sensortec
Hardware manufacturer · 🇩🇪 DE
MEMS and environmental sensors (BME280, BME680)
Nordic Semiconductor
Hardware manufacturer · 🇳🇴 NO
Specialist in low-power wireless connectivity
Raspberry Pi
Hardware manufacturer · 🇬🇧 GB
Single-board computers and RP2040/RP2350 microcontrollers
STMicroelectronics
Hardware manufacturer · 🇨🇭 CH
European semiconductor maker: STM32, sensors and ToF