In this project, we will be using two different types of sensors: the soil moisture sensor and the temperature sensor.

The soil moisture sensor is an analog probe that provides soil resistive measurements, which we will explain later in this chapter. The temperature of the sensor is based on a thermistor, and its specifications and calculation are also detailed later in the Measuring environment temperature section.

Both sensors use the standard Grove connector cable that provides VCC, GND, and data connectivity to the probe.