1. IOT Based Smart Agriculture System
Submitted To: Dr. Nidhi Singh
Dr. Shradha Singh
Submitted By:
Ashutosh Mishra(19/BEE/014)
Divyanshu Gautam(19/BEE/018)
Sumit Yadav(19/BEE/046)
Mid Term Project Presentation
on
3. Introduction
The soil nutrient content can be easily
measured using NPK Soil Sensor &
Arduino.
Measurement of soil content N
(nitrogen), P (phosphorus), and K
(potassium) is necessary to determine
how much additional nutrient content
is to be added to soil to increase crop
fertility.
4. Introduction
Here we will use a JXCT Soil NPK
Sensor to detect the soil nitrogen,
phosphorous & Potassium in a soil.
The JXCT Soil NPK sensor is a low cost, quick
responsive, high precision & portable Sensor
that works with Modbus RS485.
The advantage of this sensor over a
traditional detection method is that it gives
very fast measurement & data are highly
accurate.
All you need is to insert its probe in soil
and get the reading using Arduino.
5. Importance of NPK
Nitrogen is responsible for
increased yield and quality,
and as nitrogen rates
increase, so does yield.
The role of phosphorus
and potassium in the plant
is maintenance
6. Component
Arduino UNO
NPK Sensor
OLED Display
Modbus Module
Power Supply
Connecting Wires
7. Arduino UNO
Arduino was born at the Ivrea Interaction
Design Institute as an easy tool for fast
prototyping.
Arduino is an open-source electronics platform
based on easy-to-use hardware and software.
Arduino has been the brain of thousands of
projects.
8. NPK Sensor
The soil NPK sensor is suitable for detecting the
content of nitrogen,
phosphorus, and potassium in the soil
The sensor doesn’t require any chemical
reagent
It can be used with any microcontroller
The sensor operates on 9-24V & power
consumption is very low
Cannot use the sensor directly with the
microcontroller as it has a Modbus
Communication port
9. OLED Display
The OLED display doesn’t require backlight
its pixels consume energy only when they are
on
The model we’re using here has only four pins
and communicates with the Arduino using I2C
communication protocol
10. Modbus Module
The MAX485 TTL to RS-485 Interface
Module allows us to use the RS-485 differential
signalling for robust long-distance serial
communications up to 1200 meters or in electrically
noisy environments and is commonly used in
industrial environments.
It supports multiple devices (up to 32) on the same
cable, commonly referred to as ‘multi-drop’.
11. Circuit Diagram
Above diagram showing connection between NPK sensor with OLED through Arduino
UNO in which Arduino and sensor communicate through MODBUS.
12. Working Principal
To measure the soil moisture will be use
a capacitive soil moisture sensor
similarly in order to measure the soil and
NPK value we will use a soil NPK
sensor all these sensor can be easily
interfaced with Arduino.
13. Working Principal
Dig a pit with a diameter> 20cm
vertically, insert the sensor needle
horizontally into the pit wall at a
predetermined depth, and fill the pit
tightly. After a period of stability,
measurement and recording can be
carried out for several days, months,
or even longer.
14. Application
Measure multiple type of soil
NPK value remotely monitor
High measurement accuracy
Fast measurement speed
Low measurement cost
Waterproof
Dustproof
15. Precautions
All steel needles must be inserted into the soil during measurement
Avoid strong sunlight directly shining on the sensor to cause excessive temperature. Pay
attention to lightning protection in the field.
Do not bend the steel needle violently, pull the lead wire of the sensor forcefully, and do
not hit or hit the sensor violently.
Due to the presence of radiofrequency electromagnetic radiation in the air, it is not
suitable to stay in the air for a long time with electricity.
16. Conclusion
Without much
knowledge of technical
any people can
effectively measured
soil nuitrient in low cost
, less time.
This sensor suitable for
all type of soil either
acidic or basic.
This whole setup
doesn’t require any
type of chemical for his
test.
