The creation and use of sensing technology is one of the main components in achieving sustainability in agricultural production through precision agriculture. This article outlines the primary sensing methodologies used for tracking soil nutrients in view of recent improvements in the sensing devices utilised in literature. To locate the nutrients in the soil, the designed prototype has AS73211 colour sensors that work with a NODE MCU. Two different soil samples were used for the measurement. Testing on various samples showed that Nitrogen and Potassium is more that the threshold values of 445-485nm and 625 – 685nm respectively in both the soil samples. The method developed is more useful and suitable for use in farming.