In the last section, we looked at the essentials of hardware or smart devices that form the backbone of the entire IoT solution. In this section, we are going to look at gateways and how the smart device communicates with the cloud over the internet.
Here are the possible ways for a controller connected to a sensor to send data to the cloud over the internet:
- Ethernet cable: https://www.lifewire.com/what-is-ethernet-3426740
- GSM/cellular: https://www.tutorialspoint.com/gsm/gsm_overview.htm
- Wi-Fi: https://www.lifewire.com/what-is-wi-fi-2377430
These three are quite common protocols that we use almost daily.
These communication protocols are more popular in an IoT stack that works using a cloud computing-based ...
