
We will use an analog capacitive soil moisture sensor that measures soil moisture levels by capacitive sensing. For this application, a Capacitive type of Soil Moisture Sensor is preferred. To measure the Soil Moisture Level we need a Soil Moisture Sensor. The project Iot based soil Nutrient Monitoring, Analysis & Testing requires some sensors which are explained in detail below. Sensors Used: Soil Moisture, Temperature & NPK All the components can be easily purchased from the Amazon. The Bill of Material for this great IoT Based Project is given below. So, let’s build an IoT Based Soil Nutrient Content Analysis, Monitoring & Testing System simply using Wireless Sensors Network, Arduino & ESP32. Using this WiFi Network, the data can be uploaded to Thingspeak Server. The receiver is built using ESP32 WiFi Module, which has access to WiFi Network. The data from the transmitter can be transmitted wirelessly from a kilometer distance to the Receiver. In order to solve this, we will use the NRF2401 Wireless transceiver Module to send the data from sensor Node to Gateway. But the agricultural field doesn’t have access to these networks. We need the GSM or WiFi network in the field to send the data to the server. We will use the Thingspeak Server to Monitor the data in graphical & numerical format. All these sensors can be easily interfaced with Arduino. Similarly, in order to measure the Soil NPK Values, we will use a Soil NPK Sensor. The temperature of the soil can be measured using the DS18B20 Waterproof Temperature Sensor. To measure the Soil Moisture, we will use a Capacitive Soil Moisture Sensor.
ARDUINO SENSORS PC
The farmer can monitor all these parameters wirelessly on a mobile phone or the PC System. In this project, a soil Nutrient monitoring & analysis system is proposed in which the farmer will be able to monitor soil moisture, soil temperature, and soil nutrient content like Nitrogen, Phosphorous & Potassium. These properties can be sensed by the open-source hardware, and they can be used in the field. Some chemical and physical properties of soil, such as its moisture, temperature, soil nitrogen, phosphorous & potassium content heavily affect the yield of a crop. Soil provides nutrients that increase the growth of a crop. In this project, we will learn about IoT Based Soil Nutrient Monitoring & Analysis systems using Arduino & ESP32. Overview: IoT Based Soil Nutrient Monitoring

Adding Necessary Library to Arduino IDE.Circuit: IoT Based Soil Nutrient Monitoring with Arduino & ESP32.Sensors Used: Soil Moisture, Temperature & NPK.Overview: IoT Based Soil Nutrient Monitoring.
