Blynk with Arduino

In this project, we will create an online dashboard using Blynk that reports the current temperature and humidity values gathered by the SHT21 sensor. A switch is also included in the dashboard using which a led is controlled in real-time, later on using this pin we can also switch on/off any device.
For this project, we will utilize the Arduino Uno, the W5500 Ethernet module for internet connectivity, and the SHT21 for collecting the Temperature and Humidity values. The data will be shown in a color-changing gauge and plotted on a graph for understanding the trends in the real-time environmental data. The color will change according to the severity of the values which can also be configured.
Before actually working on this project, we first need to set up and configure a few things. Let's move forward with the prerequisites.