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 Battery Life: How Long It Really Lasts and WhyLoRaWAN battery life is quoted as ten years on most datasheets, yet many sensors die after three, and the gap is almost always in the radio settings.
Smart Water Metering: Meters, Networks and Leak DetectionSmart water metering turns a reading taken once a quarter into hourly data, and that changes what a utility can see: leaks, losses, and real demand.
OPC UA vs MQTT: How to Bridge the Plant Floor and the CloudOPC UA vs MQTT is the wrong framing for most plants: OPC UA describes what the data means, MQTT moves it, and most cloud projects end up needing both.
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
CoAP (RFC 7252) brings GET/POST/PUT/DELETE to devices with 8 KB of RAM over UDP. How Observe and DTLS work, and when to pick it over MQTT.
- 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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39 audio overviews
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