Principle of Internet of Things (IoT)

 System Operation

- RIOT OS

- Windows for IoT
- Google Brillo

- ARM mbed OS

Network Protocol

- WiFi

- Bluetooth

- ZigBee

- Z-Wave

- LoRaWan

Data Protocol

- HTTP/HTTPS (HyperText Transfer Protocol)

- MQTT (Message Queuing Telemetry Transport) 

- CoAP (Constrained Application Protocol)

- AMQP (Advanced Message Queuing Protocol) 

- DDS (Data Distribution Service)

- WebSocket

- LoRaWAN or Sigfox

- REST

- NGSI

- OPC Unified Architecture
- ISOXML/ADAPT

IoT Cloud

- AWS IoT (Web)
-  Microsoft Azure IoT (Web)

- Google Cloud IoT (Web)

-  Blynk (Web and Mobile apps)
- Arduino IoT (Web and Mobile apps)

- Adafruit IO