IoT protocols are a set of rules that guide how data gets sent to the internet. They ensure optimum security to the data being exchanged between connected IoT devices.
Some of the popular IoT protocols are:
| Layer | Protocol |
| Application layer | - Advanced Message Queuing Protocol (AMQP)
- Message Queue Telemetry Transport (MQTT)
- Constrained Application Protocol (CoAP)
|
| Transport layer | - User Datagram Protocol (UDP)
- Transmission Control Protocol (TCP)
|
| Network layer | |
| Datalink layer | |
| Physical layer | - Near field communication (NFC)
- Radio frequency identification (RFID)
- Bluetooth Low Energy (BLE)
- Ethernet
|
