ni6hant's Website
Understanding Electronic Equipment
I ordered a whole Arduino Kit and I have no idea what all these equipment actually do so I am going to write them down and try to understand them and refer to this page later as needed.

Used in project and completely understand how it works

Unused

HW-103 Vol. 1 → Soil Moisture Sensor Module

 

Works like this

References:

https://components101.com/modules/soil-moisture-sensor-module

https://five.nocrew.org/raspberry-pi/moisture-sensor/