Also a nice summary about the wired and wireless 13 common communication technologies in IoT.
Wired part of the IoT communication technologies
- RS232
- RS485
- RS422
- M-BUS
- PLC (power carrier)
The wireless part of the IoT communication Technologies
- Zigbee
- Bluetooth
- WI-FI
- NB-IoT
- LoRa
- RFID
- NFC
- 4G