% A Gentle Introduction to IoT Protocols: MQTT, CoAP, HTTP & WebSockets
% Antonio Almeida and Jaime González-Arintero
% June 14, 2017
-MIT Technology Review, 2014
- 14 bn connected devices | Bosch SI
- 50 bn connected devices | Cisco
- 309 bn IoT supplier revenue | Gartner
- 1.9 tn IoT economic value add | Gartner
- 7.1 tn IoT solutions revenue | IDC
By 2020, component costs will have come down to the point that connectivity will become standard feature, even for processors costing less than $1.
- Peter Middleton, Gartner
- IETF Definition:
tools.ietf.org/html/rfc7228 - Limited processing power
- Unreliable networking
- Low power (so they can run on batteries)
"A computer network consisting of a worldwide network of computer networks that use the TCP/IP network protocols to facilitate data transmission and exchange."
devices != gateways
- Devices talk to other devices northbound and southbound
- Gateways talk to the cloud northbound and devices southbound
- Device to device (D2D)
- Device to cloud (D2C)