Tech used: Arduino uno, Breadbord, Jumper Wires, 16x2 LCD Display, Moisture Detection Sensor Module, and Twillio API.
If soil moisture was low, LED will trigger and I will receieve a text message using Twillio's API. LCD Display was used to show the current soil moisture levels.
This was a fun one! Since cheap moisture sensors are made from copper, they would start to oxidize overtime and can kill the plant.