The 7-in-1 soil sensor NPK + PH + Conductivity + Temperature and Humidity creatively measure conductivity, moisture, temperature, ph, nitrogen, phosphorus and potassium parameters together, greatly facilitating the customer system to assess the soil situation.
The sensor typically features stainless steel probes that are inserted into the soil to collect data. It often uses an RS485 Modbus protocol for stable data transmission and is built to withstand harsh conditions, with features like corrosion resistance, waterproofing (IP68 rating), and resistance to long-term electrolysis. The housing is usually sealed with epoxy resin to ensure durability when buried in soil for extended periods.
How Does It Work?
The 7-in-1 soil sensor operates by inserting its probes into the soil to measure various properties:
1. Moisture: Measures the soil's water content by assessing the dielectric constant, helping determine if irrigation is needed.
2. Temperature: Monitors soil temperature, which influences plant growth and nutrient absorption.
3. Electrical Conductivity (EC): Indicates soil salinity and fertilizer concentration, crucial for assessing soil fertility.4. pH: Determines soil acidity or alkalinity using an electrode method, aiding in crop selection and soil management.
1. Moisture: Measures the soil's water content by assessing the dielectric constant, helping determine if irrigation is needed.
2. Temperature: Monitors soil temperature, which influences plant growth and nutrient absorption.
3. Electrical Conductivity (EC): Indicates soil salinity and fertilizer concentration, crucial for assessing soil fertility.
5. Nitrogen, Phosphorus, and Potassium (NPK): Estimates the levels of these essential nutrients, though with noted limitations in accuracy, as they often rely on rapid detection methods that may only indicate trends rather than precise values.
The sensor communicates data via an RS485 interface, which can be connected to microcontrollers like Arduino, PLCs, or computers using a USB-to-RS485 converter. Some models also support wireless protocols like 4G, NB-IoT, or LORA for remote monitoring. Data can be displayed on integrated screens, sent to cloud platforms like ThingSpeak for visualization, or logged for analysis.
Benefits of the 7-in-1 Soil Sensor
1. Comprehensive Monitoring: Measures seven parameters in one device, reducing the need for multiple sensors and simplifying soil analysis.
2. Durability: Built with corrosion-resistant stainless steel probes and waterproof housing, it’s suitable for long-term use in various soil types.
3. Real-Time Data: Provides instant insights, enabling timely decisions on irrigation, fertilization, and soil amendments.4. Versatility: Applicable in diverse settings, including farmland, greenhouses, orchards, and research labs.
5. Cost-Effective: Combines multiple measurements into one affordable device, with some models available for purchase with a single unit MOQ.
6. Integration: Supports RS485 Modbus for easy integration with IoT systems, microcontrollers, or cloud platforms for automated monitoring.
The 7-in-1 soil sensor is a game-changer for various industries:
2. Greenhouse Management: Maintain ideal soil conditions for flowers, vegetables, and other plants.
3. Environmental Monitoring: Assess soil health for conservation and research purposes.
4. Soil Testing: Conduct rapid tests for plant cultivation, sewage treatment, and grain storage.
Code for the project with Blynk IoT app and Thingspeak