Data Detection Acquisition and Notification Framework Using Humidity Sensor

India is an agricultural country and agriculture is a basic occupation in our country. Since today, farmers water their plants every day but this is the project that helps farmers and in the agricultural field to water without any problem because here there is an irrigation system . In this system, the thirsty plant tells the farmer that it needs water and then we can water the plants. Nowadays people have daycare at home and some people have gardening as a hobby. So also in these places this irrigation system is very useful for people. In the nursery there are many types of plants. Of these, many plants need more water and some plants need less water depending on the soil moisture level. People use this system in their daily life and this system is called botanical system .

There is a problem with this system: if the plants need water and at that moment the farmer or owner is away from the site and is unable to water. The solution to this problem is to connect a water pump to each plant and when the plant needs water it will be watered automatically using the pump. Both processes, one is receiving the message from the owner and the second is that the watering of the plant takes place simultaneously in this system.

Hardware and description

Block Diagram :

Block Diagram Description :

The figure shows the block diagram of the data detection, acquisition and notification structure using humidity sensor. It contains 6 sections.

Power supply :-

The power supply section consists of step-down transformers from 230V primary voltage to 5V secondary voltage for the +5V power supply. This circuit provides 5V to the entire circuit.

GSM modem :-

QUECTEL M 10 interfaces with the ATmega16 microcontroller to decode the received message and perform the required action. The protocol used for communication between the two is the AT command.

ATmega16 Microcontroller :-

The microcontroller is the heart of the system. It constantly monitors the digitized parameters of the humidity sensor and checks them against the predefined limit values ​​and checks whether any corrective action should be taken for the condition at that instant.

Humidity sensor :-

We are using SY-HS 230 humidity sensor.

LCD screen

The 16×2 LCD display is used to display the RH value of humidity detection by the humidity sensor.

Retransmission

We are using KT-603 relay to control the water pump.

Schematic Diagram Schematic diagram for power supply and microcontroller shown in tab 1 of the circuit diagram.

GSM scheme and operation

GSM schematic diagram

Shown in tab 2 of the circuit diagram.

Working :

1. 5V power supply supplied to microcontroller and humidity sensor simultaneously.

2. Humidity detected by humidity sensor which is in analog format.

3. The analog value is supplied to the ADC pin of the microcontroller.

4. ADC works with counting form.

5. Analog humidity value is converted into count form.

6. This count value is automatically converted to the RH value.

{ 7. When programming, a limit value is defined in the form of relative humidity.

8. Both RH values ​​are compared with each other.

If the received RH value is less than the fixed RH value then the GSM message will be received and the microcontroller relay will be turned on and the pump will start watering the plant.

9. The process will continue until the received amount becomes equal to the threshold amount.

10.W When the received value exceeds the threshold value, the GSM message will be received and the microcontroller relay will be turned off and the pump will stop watering.

Component List

Component list

Technical specification of KT-603 Relay components

Component List Cont. and Flowchart..

SY-HS-230 Humidity Sensor Specification

Humidity Sensor Specification

7805 IC Specification

BC547 Specification

Quectel M10 GSM Module Specification

FLOW CHART

Result and Conclusion

Test results

Test Setup

T troubleshooting

The LCD display was not working properly. Then it is replaced.

GSM was not working properly. Then it is replaced.

Result

Completion and future expansion

Conclusion

We conclude from this project that if the humidity level is below the limit value, the plant will notify us by providing water by message through GSM and if the humidity level is above the limit value, it will also notify us by message through GSM. We got different results through testing.

Future expansion

· This concept can be used simultaneously for different plants.

· We can attach temperature sensor to measure temperature.

· All data can be received from different farms in the state or country and can be centralized in a database at the main central station.

· We can make programs for different R Value H for different plants.

Project source code

Project source code

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$regfile = "M16def.dat"
 $crystal = 8,000,000
 $frame size = 24
 $hwstack = 32
 $swstack = 8
 $baud = 19200 '****BAUD RATE IS AUTO DETECTED BY GSM, SO YOU CAN GET ANY
 Dim A as string * 5, Rcvd as string * 5
 Dim I as an integer
 'Config Portac = Output
 
Configuration Lcdpin = Pin, E = Portac.4, Rs = Portac.5, Db4 = Portac.3, Db5 = Portac.2, Db6 = Portac.1, Db7 = Portac.0
 LCD configuration = 16 * 2
 Adc Setting = Single, Prescaler = Auto, Reference = Avcc
 Start Adc
 Dim S as integer
 Dim W as a word
 Dim H as integer
 Configure Portad.6 = Output
 Serial configuration = buffer, size = 254
 Serialout Setting = Buffered, Size = 254
 Enable interrupts
 Configure Portad.6 = Output
 'Set port.6'
 'Wait 500'
 'Reset Portc.6 'POWER KEY (LOW)PULSE
 'Wait 2'
 'Set port.6'
 'Cls
 LCD "gsm"
 Wait 1
 Cls
 Wait 25' WAIT FOR FINE NET
 To do
 Cls
 For S = 0 to 100 Step 1
 W = Getadc
 L = L/8
 Locate 1, 1
 LCD "HUMIDITY:"
 Locate 1, 10
 LCD W
 Wait 100
 Next
 Cls
 If W > 70 then
 Reset port.6
 H = 1
 Other
 Set port.6
 H = 2
 End if
 Cls
 Locate 1, 1
 LCD "On"
 Wait 2
 Cls
 To do
 Cls
 Locate 1, 1
 LCD "Waiting"
 Print "AT" 'SENDING "AT" TO VERIFY THAT THE GSM MODEM IS WORKING 
A = Inkey
 Loop until A = "O" 'RESPONSE OF "AT" IS "OK" THEN WAIT FOR THE FIRST LETTER "O"
 Rcvd = A
 To do
 A = hold key
 Loop until A = "K" 'RESPONSE FROM "AT" IS "OK" THEN WAIT FOR SECOND LETTER "K"
 Rcvd = Rcvd + A 'COMBINE "O & K" FOR FINAL ANSWER "OK"
 Cls
 LCD Rcvd
 Wait 2
 Rcvd = "" 'MAKE RCVD EMPTY FOR ANOTHER RESUME
 Cls
 Print "AT+CMGF=1" 'TO ENTER TEXT MODE ANOTHER MODEM WISE WILL BE IN PDU(PACKET DATA UNIT) "AT+CMGF=0"
 Locate 1, 1
 LCD "AT+CMGF=1" 'FOR DISPLAY
 To do
 A = Inkey
 Loop until A = "O" 'RESPONSE OF "AT+CMGF=1" IS "OK" THEN WAIT FOR THE FIRST LETTER "0"
 Rcvd = A
 To do
 A = Inkey
 Loop until A = "K" 'RESPONSE OF "AT+CMFG=1" IS "OK" THEN WAIT FOR THE SECOND LETTER "K"
 Rcvd = Rcvd + A
 Bottom line
 LCD Rcvd
 Wait 4
 Cls
 Print "AT+CMGD=1" 'TO RECEIVE THE NEW MESSAGE IN THE 1ST INDEX WE ARE DELETING THE FIRST ENTRY' ; I
 LCD "AT+CMGD=1"
 Recvd = ""
 To do
 A = Inkey
 Loop until A = "O"
 Rcvd = A
 To do
 A = Inkey
 Loop until A = "K" 
Rcvd = Rcvd + A 'RESPONSE IS "OK"
 Bottom line
 LCD Rcvd
 Wait 4
 Recvd = ""
 Cls
 Locate 1, 1
 LCD "AT+CMGW=" + Chr(34) + "9974621247" + Chr(34)
 'TO WRITE THE RECIPIENT'S MOBILE NUMBER IN MEMORY THE AT COMMAND IS "AT+CMGW=1"
 Print "AT+CMGW=" + Chr(34) + "9409085769" + Chr(34)
 'exemlpe -> At + Cmgw = "9904353830" , Chr(34) Replaces DOUBLE QUOTATION
 To do
 A = Inkey
 Loop until A = ">" 'RESPONSE OF AT+CMGW="9904353830" IS ">" JUST WAITING ">"
 Cls
 LCD "OK"
 Wait 1
 Wait 2
 Recvd = ""
 Cls
 Locate 1, 1
 LCD "system is WORKING"
 If H = 1 then
 Print "THANK YOU"
 Otherwise if H = 2 Then
 Print "PLZ GIVE WATER"
 End if
 'WRITE MESSAGE IN MEMORY
 Print Chr(26) 'IT IS NECESSARY TO GIVE CTRL+Z AFTER WRITING THE MESSAGE, CHR(26) = CTRL+Z
 To do
 A = Inkey
 Loop until A = "O" 'RESPONSE AFTER CTRL+Z IS "OK", THEN WAIT FOR "O"
 Rcvd = A
 To do
 A = Inkey  
Loop until A = "K" 'WAITING FOR "K"
 Rcvd = Rcvd + A
 Cls
 Locate 1, 1
 LCD Rcvd
 Wait 2
 Cls '***** THE MESSAGE IS STORED IN THE FIRST INDEX BECAUSE WE ARE DELETING THE 1ST ENTRY
 'WE CHECK THROUGH HYPER TERMINAL, SEE THE FILE "HYPER TERMINAL OUTPUT.DOC"
 Print "AT+CMSS=1" 'TO SEND SMS STORED IN THE 1ST INDEX WE WRITE "AT+CMSS=1"
 LCD screen "AT+CMSS=1"
 Clear serial
 Recvd = ""
 '****** ANSWER OF "AT+CMSS=1" IS +CMSS: 1
 For I = 1 to 10
 A = hold key
 Clear serial
 Rcvd = Rcvd + THE 'RESPONSE IS COLLECTED IN THE Rcvd STRING VARIABLE JUST TO SEE
 Next
 Locate 2, 1
 LCD Rcvd
 To do
 A = Inkey
 Loop until A = "O" 'FINALLLLLLLLLLLLLLLLLLLYYYYYYYYYY MESSAGE FORM MICROCONTROLLER FOR MOBILE
 Rcvd = A
 To do
 A = Inkey
 Loop until A = "K"
 Rcvd = Rcvd + A
 Cls
 Locate 1, 1
 LCD Rcvd
 Bottom line
 "MONTH SHIPPED" LCD
 Wait 2
 Link
 End
 
  
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Circuit diagrams

Image2
GSM Image