In this milestone, I managed to get all my sensors-- light, temperature, and moisture — to read and display accurate data on the Serial Monitor of the Arduino IDE. The light sensor, also called a photocell or photoresistor, acts as a resistor. The more light it received, the lower the resistance, and thus, higher the voltage. The number displayed on the Serial Monitor indicates the voltage across the resistor, so the larger the number, the more light the sensor is receiving. The temperature sensor measures the voltage it receives, with a higher voltage corresponding to a higher temperature. My code converts the output from the sensor into Celsius. The moisture sensor relies on the conductivity of water to measure the moisture content of its surroundings. The more water present, the higher the conductivity and lower the resistance. The number on the Serial Monitor represents to resistance across the moisture sensor, with a lower number meaning higher water content. In addition to my sensors, I also got my water pump motor set up and connected to a relay that turns the motor on and off based on signals sent from my Arduino.