whats wrong with this green house project code ?

;---------------------------------------------------------

;ADC inputs
;IN4 - LM35
;IN5 - MOISTURE SENSOR
;IN6 - HIH4000
;IN7 - LIGHT SENSOR
;ADD_C – Connected to Vcc
;---------------------------------------------------------

; Microcontroller connections to LCD.

RS BIT P2.5 ; P2.5 is connected to RS pin of LCD
RW BIT P2.6 ; P2.6 is connected to R/W pin of LCD
E BIT P2.7 ; P2.5 is connected to E pin of LCD

LCDDATA equ P0 ; P0.0-P0.7 are connected to LCD data pins D0-D7

SWITCH equ P3.2 ; P3.2 (INT0) is connected to SWITCH for LCD

; Microcontroller connections to ADC0808/9 lines.

OE EQU P3.0 ; Pin 9 Output Enable
START EQU P3.1 ; Pin 6 Start
EOC EQU P3.3 ; Pin 7 EOC
ADD_A EQU P3.4 ; Pin 25 ADD A
ADD_B EQU P3.5 ; Pin 24 ADD B
ALE EQU P3.7 ; Pin 22 ALE

ADCDATA EQU P1 ; Data Lines


; Microcontroller connections to Actuators

COOLER EQU P2.4
PUMP EQU P2.3
SPRAYER EQU P2.2
LIGHT1 EQU P2.1
LIGHT2 EQU P2.0
BUZZER EQU P3.6
;---------------------------------------------------------

; Register definitions.

LCD_INTR BIT 00h ;LCD Interrupt flag bit

BUZZ BIT 01h ;Buzzer flag
BUZZ1 BIT 02h ;Buzzer flag
BUZZ2 BIT 03h ;Buzzer flag
BUZZ3 BIT 04h ;Buzzer flag
T_BUFFER EQU 30h ;Temperature buffer (ADC o/p)
M_BUFFER EQU 31h ;Soil Moisture buffer (ADC o/p)
RH_BUFFER EQU 32h ;RH buffer (ADC o/p)
L_BUFFER EQU 33h ;Light buffer (ADC o/p)
LIGHT_LEVEL EQU 34h ;Buffer to store light level
MOIST_LEVEL EQU 35h ;Buffer to store moisture level


;----------------------------------------------------------

org 00h

LJMP main

org 03h

LJMP int_isr ; Interrupt for the LCD switch

org 07h


main:
CLR 0A0h ;Clear Port 2 for the actuators to turn off
CLR 0B0h ;Clear port 3 for the buzzer to turn off
SETB BUZZER
LCALL DELAY
CLR BUZZER ;Turn off buzzer

MOV 60h, #'C' ; Intitialising Actuator status message
MOV 61h, #':'
MOV 62h, #' '
MOV 63h, #'O'
MOV 64h, #'F'
MOV 65h, #'F'

MOV 66h, #' '
MOV 67h, #' '

MOV 68h, #'P'
MOV 69h, #'U'
MOV 6Ah, #':'
MOV 6Bh, #'O'
MOV 6Ch, #'F'
MOV 6Dh, #'F'
MOV 6Eh, #0

MOV 70h, #'S'
MOV 71h, #'P'
MOV 72h, #':'
MOV 73h, #'O'
MOV 74h, #'F'
MOV 75h, #'F'

MOV 76h, #' '
MOV 77h, #' '

MOV 78h, #'L'
MOV 79h, #'I'
MOV 7Ah, #':'
MOV 7Bh, #'O'
MOV 7Ch, #'F'
MOV 7Dh, #'F'
MOV 7Eh, #0

;Main Code
;-----------------------------------------------------------------------

MOV TMOD, #01h ;Timer 0 Mode 1, 16 bit timer (for generating 5 second delay for LCD)
SETB TCON.0 ;Make INT0 edge triggered
MOV IE, #81h ;Enable INT0
CLR LCD_INTR ;Make LCD interrupt flag =0
ACALL lcd_init ;LCD initialisation
ACALL line_1 ;Display welcome message
back:
ACALL adcread ;Read sensor data from ADC
ACALL data_display ;call routine to display to LCD
ACALL threshold_check ;call routine to check threshold
SJMP back ;repeat ADC process


lcd_init: ;LCD initialisation
MOV A, #38H ;init. LCD 2 lines,5x7 matrix (CHANGE THIS!!!)
ACALL comnwrt ;call command subroutine
ACALL lcddelay ;give LCD some time
MOV A, #0EH ;display on, cursor on
ACALL comnwrt ;call command subroutine
ACALL lcddelay ;give LCD some time
MOV A, #01 ;clear LCD
ACALL comnwrt ;call command subroutine
ACALL lcddelay ;give LCD some time
MOV A, #06H ;shift cursor right
ACALL comnwrt ;call command subroutine
ACALL lcddelay ;give LCD some time
RET

line_1: ;Displaying initialisation message
MOV A, #080H ;cursor at line 1, position 0
ACALL comnwrt ;call command subroutine
ACALL lcddelay ;give LCD some time
MOV DPTR, #init1 ;address of line 1 of initialisation message
repeat1:
CLR A
MOVC A, @A+DPTR ;moving the data to accumulator
JZ line_2
ACALL datawrt ;call data display routine
ACALL lcddelay ;give LCD some time
INC DPTR ;increment address
SJMP repeat1


line_2:
MOV A, #0C0h ;cursor at line 2, position 0
ACALL comnwrt ;call command subroutine
ACALL lcddelay ;give LCD some time

MOV DPTR, #init2 ;address of line 2 of initialisation message
repeat2:
CLR A
MOVC A, @A+DPTR ;moving the data to accumulator
JZ line_3
LCALL datawrt ;call data display routine
LCALL lcddelay ;give LCD some time
INC DPTR ;increment address
SJMP repeat2 ;jump to label repeat2


line_3: ;Displaying initialisation message
MOV A, #080H ;cursor at line 1, position 0
ACALL comnwrt ;call command subroutine
ACALL lcddelay ;give LCD some time
MOV DPTR, #init3 ;address of line 1 of initialisation message
repeat3:
CLR A
MOVC A, @A+DPTR ;moving the data to accumulator
JZ line_4
ACALL datawrt ;call data display routine
ACALL lcddelay ;give LCD some time
INC DPTR ;increment address
SJMP repeat3

line_4:
MOV A, #0C0h ;cursor at line 2, position 0
ACALL comnwrt ;call command subroutine
ACALL lcddelay ;give LCD some time
MOV DPTR, #init4 ;address of line 2 of initialisation message
repeat4:
CLR A
MOVC A, @A+DPTR ;moving the data to accumulator
JZ line_5
LCALL datawrt ;call data display routine
LCALL lcddelay ;give LCD some time
INC DPTR ;increment address
SJMP repeat4 ;jump to label repeat4

line_5: ;Displaying initialisation message
MOV A, #080H ;cursor at line 1, position 0
ACALL comnwrt ;call command subroutine
ACALL lcddelay ;give LCD some time
MOV DPTR, #init5 ;address of line 1 of initialisation message
repeat5:
CLR A
MOVC A, @A+DPTR ;moving the data to accumulator
JZ line_6
ACALL datawrt ;call data display routine
ACALL lcddelay ;give LCD some time
INC DPTR ;increment address
SJMP repeat5

line_6:
MOV A, #080H ;cursor at line 1, position 0
ACALL comnwrt ;call command subroutine
ACALL lcddelay ;give LCD some time
MOV DPTR, #init6 ;address of line 2 of initialisation message
repeat6:
CLR A
MOVC A, @A+DPTR ;moving the data to accumulator
JZ line_7
LCALL datawrt ;call data display routine
LCALL lcddelay ;give LCD some time
INC DPTR ;increment address
SJMP repeat6 ;jump to label repeat4
line_7:
MOV A, #0C0h ;cursor at line 2, position 0
ACALL comnwrt ;call command subroutine
ACALL lcddelay ;give LCD some time
MOV DPTR, #init7 ;address of line 2 of initialisation message
repeat7:
CLR A
MOVC A, @A+DPTR ;moving the data to accumulator
JZ exit
LCALL datawrt ;call data display routine
LCALL lcddelay ;give LCD some time
INC DPTR ;increment address
SJMP repeat7 ;jump to label repeat7
exit:
MOV A, #01h ;clear LCD
LCALL comnwrt
LCALL lcddelay ;give LCD some time
RET

comnwrt: ;send command to LCD
MOV LCDDATA, A ;copy reg A to port1
CLR RS ;RS=0 for command
CLR RW ;R/W=0 for write
SETB E ;E=1 for high pulse
MOV R3,#50
REG_3:
MOV R4,#255
DJNZ R4,$
DJNZ R3,REG_3
CLR E ;E=0 for H-to-L pulse
RET

datawrt: ;write data to LCD
MOV LCDDATA, A ;copy reg A to port1
SETB RS ;RS=1 for data
CLR RW ;R/W=0 for write
SETB E ;E=1 for high pulse
MOV R3,#50
REG_4:
MOV R4,#255
DJNZ R4,$
DJNZ R3,REG_4

CLR E ;E=0 for H-to-L pulse
RET


lcddelay: ;Delay routine for LCD
MOV R3, #50
here2:
MOV R4, #255
here3:
DJNZ R4, here3 ;stay until R4 becomes 0
DJNZ R3, here2
RET


adcread: ;Initializing ADC
;SENSOR 1
MOV ADCDATA, #0FFH ; Data lines for input
SETB EOC ; Make EOC i/p
ACALL delay
CLR ALE ; clearing ALE
CLR START ; Make start high
CLR OE ; Disable o/p
CLR ADD_A ;A=0
CLR ADD_B ;B=0 ;Select IN4
ACALL delay
SETB ALE ;latching the address
ACALL delay
SETB START ;start conversion pulse
ACALL delay
CLR ALE ;ALE H-L transition
CLR START ;START H-L transition

JB EOC,$
JNB EOC,$
ACALL delay
SETB OE ;enable o/p
ACALL delay
MOV T_BUFFER, ADCDATA ;store adc data to buffer
CLR OE ;disable o/p

;SENSOR 2
MOV ADCDATA, #0FFH ; Data lines for input
SETB EOC ; Make EOC i/p
ACALL delay
CLR ALE ; clearing ALE
CLR START ; Make start high
CLR OE ; Disable o/p
SETB ADD_A ;A=1
CLR ADD_B ;B=0 Select IN5
ACALL delay
SETB ALE ;latching the address
ACALL delay
SETB START ;start conversion pulse
ACALL delay
CLR ALE ;ALE H-L transition
CLR START ;START H-L transition

JB EOC,$
JNB EOC,$
ACALL delay
SETB OE ;enable o/p
ACALL delay ;
MOV M_BUFFER, ADCDATA ;store adc data to buffer
CLR OE ;disable o/p

;SENSOR 3
MOV ADCDATA, #0FFH ; Data lines for input
SETB EOC ; Make EOC i/p
ACALL delay
CLR ALE ; clearing ALE
CLR START ; Make start high
CLR OE ; Disable o/p
CLR ADD_A ;A=0
SETB ADD_B ;B=1 Select IN6
ACALL delay
SETB ALE ;latching the address
ACALL delay
SETB START ;start conversion pulse
ACALL delay
CLR ALE ;ALE H-L transition
CLR START ;START H-L transition

JB EOC,$
JNB EOC,$
ACALL delay
SETB OE ;enable o/p
ACALL delay
MOV RH_BUFFER, ADCDATA ;store adc data to buffer
CLR OE ;disable o/p

;SENSOR 4
MOV ADCDATA, #0FFH ; Data lines for input
SETB EOC ; Make EOC i/p
ACALL delay
CLR ALE ; clearing ALE
CLR START ; Make start high
CLR OE ; Disable o/p
SETB ADD_A ;A=1
SETB ADD_B ;B=1 Select IN7
ACALL delay
SETB ALE ;latching the address
ACALL delay
SETB START ;start conversion pulse
ACALL delay
CLR ALE ;ALE H-L transition
CLR START ;START H-L transition

JB EOC,$
JNB EOC,$
ACALL delay
SETB OE ;enable o/p
ACALL delay
MOV L_BUFFER, ADCDATA ;store adc data to buffer
CLR OE ;disable o/p

RET
delay: ;Delay subroutine
MOV R3, #250
here1:
MOV R4, #255
here:
DJNZ R4, here
DJNZ R3, here1
RET


data_display: ;LCD routine to display sensor and actuator data

JNB LCD_INTR, sensor_display ;if ACT=0, jump to display sensor data label
MOV A, #01h ;clear LCD
ACALL comnwrt
ACALL lcddelay ;give LCD some time
MOV A,#80H ;cursor at line 1, position 0
ACALL comnwrt ;call command subroutine
ACALL lcddelay ;give LCD some time
MOV R0, #60h ;address of display message line 1
line1:
CLR A
MOV A, @R0 ;moving the data to accumulator
JZ nxt_line ;exit loop on completion of display and start display of LCD next line
LCALL datawrt ;call data display routine
LCALL lcddelay ;give LCD some time
INC R0 ;increment address
SJMP line1 ;repeat display till end of message

nxt_line: ;Displaying on line 2 of LCD
MOV A, #0C0h ;cursor at line 2, position 0
LCALL comnwrt ;call command subroutine
LCALL lcddelay ;give LCD some time
MOV R0, #70h ;address of display message line 2
line2:
CLR A
MOV A, @R0 ;moving the data to accumulator
JZ delay_5s ;exit loop on completion of display amd call routine to wait 5 sec
LCALL datawrt ;call data display routine
LCALL lcddelay ;give LCD some time
INC R0 ;increment address
SJMP line2 ;repeat display till end of message

delay_5s: ;5 second delay routine
MOV R7, #100 ;REPEAT 100 TIMES (50ms*100= 5sec)
sec_5:
MOV TL0, #0FDh ;load 4BFDh for 5ms delay
MOV TH0, #4Bh
SETB TR0 ;Start timer 0
JNB TF0, $ ;Check for end of count
CLR TR0 ;Stop timer
CLR TF0 ;Clear timer 0 flag
DJNZ R7, sec_5 ;Repeat till R7=0
CLR LCD_INTR ;Clear interrupt check flag
MOV A, #01h ;clear LCD
LCALL comnwrt
LCALL lcddelay ;give LCD some time

sensor_display:
;DISPLAYING SENSOR 1: TEMP SENSOR

MOV A,#80H ;cursor at line 1, position 0
LCALL comnwrt ;call command subroutine
LCALL lcddelay ;give LCD some time
MOV A, #'T' ;display letter T
LCALL datawrt ;call display subroutine
LCALL lcddelay ;give LCD some time
MOV A, #':' ;display : symbol
LCALL datawrt ;call display subroutine
LCALL lcddelay ;give LCD some time

MOV A, T_BUFFER ;move sensor data from buffer to accumulator
MOV DPTR, #temp_tens ;address of ASCII code look up table (tens place)
MOVC A, @A+DPTR ;store corresponding ASCII code to Accumulator
LCALL datawrt ;call display subroutine
LCALL lcddelay ;give LCD some time

MOV A, T_BUFFER ;move sensor data from buffer to accumulator
MOV DPTR, #temp_ones ;address of ASCII code look up table (ones place)
MOVC A, @A+DPTR ;store corresponding ASCII code to Accumulator
LCALL datawrt ;call display subroutine
LCALL lcddelay ;give LCD some time

MOV A, #'.' ;display . symbol
LCALL datawrt ;call display subroutine
LCALL lcddelay ;give LCD some time

MOV A, T_BUFFER ;move sensor data from buffer to accumulator
MOV DPTR, #temp_dec ;address of ASCII code look up table (decimal place)
MOVC A, @A+DPTR ;store corresponding ASCII code to Accumulator
LCALL datawrt ;call display subroutine
LCALL lcddelay ;give LCD some time

MOV A, #0DFh ;display degree symbol
LCALL datawrt ;call display subroutine
LCALL lcddelay ;give LCD some time
MOV A, #'C' ;display letter C
LCALL datawrt ;call display subroutine
LCALL lcddelay ;give LCD some time
MOV A, #' ' ;display space
LCALL datawrt ;call display subroutine
LCALL lcddelay ;give LCD some time

;DISPLAYING SENSOR 2: SOIL MOISTURE

MOV A, #'S' ;display letter S
LCALL datawrt ;call display subroutine
LCALL lcddelay ;give LCD some time
MOV A, #'M' ;display letter M
LCALL datawrt ;call display subroutine
LCALL lcddelay ;give LCD some time
MOV A, #':' ;display : symbol
LCALL datawrt ;call display subroutine
LCALL lcddelay ;give LCD some time

MOV A, M_BUFFER ;move sensor data from buffer to accumulator
CJNE A, #67h, dry
dry:
JNC optimum
MOV MOIST_LEVEL, #1 ;Store level in a buffer (for threshold check)
MOV A, #'D' ;display D
LCALL datawrt ;call display subroutine
LCALL lcddelay ;give LCD some time
MOV A, #'r' ;display r
LCALL datawrt ;call display subroutine
LCALL lcddelay ;give LCD some time
MOV A, #'y' ;display y
LCALL datawrt ;call display subroutine
LCALL lcddelay ;give LCD some time
MOV A, #' ' ;display space
LCALL datawrt ;call display subroutine
LCALL lcddelay ;give LCD some time
MOV A, #' ' ;display space
LCALL datawrt ;call display subroutine
LCALL lcddelay ;give LCD some time

SJMP moist_over
optimum: ;normal condition
MOV A, M_BUFFER ;move sensor data from buffer to accumulator
CJNE A, #78h, disp_opt
disp_opt:
JNC slurry
MOV MOIST_LEVEL, #2 ;Store level in a buffer (for threshold check)
MOV A, #'O' ;display O
LCALL datawrt ;call display subroutine
LCALL lcddelay ;give LCD some time
MOV A, #'p' ;display p
LCALL datawrt ;call display subroutine
LCALL lcddelay ;give LCD some time
MOV A, #'t' ;display t
LCALL datawrt ;call display subroutine
LCALL lcddelay ;give LCD some time
MOV A, #' ' ;display space
LCALL datawrt ;call display subroutine
LCALL lcddelay ;give LCD some time
MOV A, #' ' ;display space
LCALL datawrt ;call display subroutine
LCALL lcddelay ;give LCD some time
SJMP moist_over

slurry:
MOV MOIST_LEVEL, #3 ;Store level in a buffer (for threshold check)
MOV A, #'E' ;display E
LCALL datawrt ;call display subroutine
LCALL lcddelay ;give LCD some time
MOV A, #'x' ;display x
LCALL datawrt ;call display subroutine
LCALL lcddelay ;give LCD some time
MOV A, #'c' ;display c
LCALL datawrt ;call display subroutine
LCALL lcddelay ;give LCD some time
MOV A, #'e' ;display e
LCALL datawrt ;call display subroutine
LCALL lcddelay ;give LCD some time
MOV A, #'s' ;display s
LCALL datawrt ;call display subroutine
LCALL lcddelay ;give LCD some time

moist_over:

;DISPLAYING SENSOR 3: RELATIVE HUMIDITY

MOV A,#0C0H ;cursor at line 2, position 0
LCALL comnwrt ;call command subroutine
LCALL lcddelay ;give LCD some time

MOV A, #'R' ;display letter R
LCALL datawrt ;call display subroutine
LCALL lcddelay ;give LCD some time
MOV A, #'H' ;display letter H
LCALL datawrt ;call display subroutine
LCALL lcddelay ;give LCD some time
MOV A, #':' ;display : symbol
LCALL datawrt ;call display subroutine
LCALL lcddelay ;give LCD some time

MOV A, RH_BUFFER ;move sensor data from buffer to accumulator
MOV DPTR, #rh_tens ;address of ASCII code look up table (tens place)
MOVC A, @A+DPTR ;store corresponding ASCII code to Accumulator
LCALL datawrt ;call display subroutine
LCALL lcddelay ;give LCD some time

MOV A, RH_BUFFER ;move sensor data from buffer to accumulator
MOV DPTR, #rh_ones ;address of ASCII code look up table (ones place)
MOVC A, @A+DPTR ;store corresponding ASCII code to Accumulator
LCALL datawrt ;call display subroutine
LCALL lcddelay ;give LCD some time

MOV A, #'.' ;display . symbol
LCALL datawrt ;call display subroutine
LCALL lcddelay ;give LCD some time

MOV A, RH_BUFFER ;move sensor data from buffer to accumulator
MOV DPTR, #rh_dec ;address of ASCII code look up table (ones place)
MOVC A, @A+DPTR ;store corresponding ASCII code to Accumulator
LCALL datawrt ;call display subroutine
LCALL lcddelay ;give LCD some time

MOV A, #'%' ;display % symbol
LCALL datawrt ;call display subroutine
LCALL lcddelay ;give LCD some time
MOV A, #' ' ;display space
LCALL datawrt ;call display subroutine
LCALL lcddelay ;give LCD some time

;DISPLAYING SENSOR 4: LIGHT

MOV A, #'L' ;display letter L
LCALL datawrt ;call display subroutine
LCALL lcddelay ;give LCD some time
MOV A, #'I' ;display letter I
LCALL datawrt ;call display subroutine
LCALL lcddelay ;give LCD some time
MOV A, #':' ;display : symbol
LCALL datawrt ;call display subroutine
LCALL lcddelay ;give LCD some time


MOV A, L_BUFFER ;move sensor data from buffer to accumulator
CJNE A, #25h, bright
bright:
JNC normal
MOV LIGHT_LEVEL, #1 ;Store level in a buffer (for threshold check)
MOV A, #'O' ;display O
LCALL datawrt ;call display subroutine
LCALL lcddelay ;give LCD some time
MOV A, #'p' ;display p
LCALL datawrt ;call display subroutine
LCALL lcddelay ;give LCD some time
MOV A, #'t' ;display t
LCALL datawrt ;call display subroutine
LCALL lcddelay ;give LCD some time
MOV A, #' ' ;display space
LCALL datawrt ;call display subroutine
LCALL lcddelay ;give LCD some time
MOV A, #' ' ;display space
LCALL datawrt ;call display subroutine
LCALL lcddelay ;give LCD some time
LJMP light_over

normal:
MOV A, L_BUFFER ;move sensor data from buffer to accumulator
CJNE A, #82h, disp_norm
disp_norm:
JNC dim
MOV LIGHT_LEVEL, #2 ;Store level in a buffer (for threshold check)
MOV A, #'D' ;display D
LCALL datawrt ;call display subroutine
LCALL lcddelay ;give LCD some time
MOV A, #'i' ;display i
LCALL datawrt ;call display subroutine
LCALL lcddelay ;give LCD some time
MOV A, #'m' ;display m
LCALL datawrt ;call display subroutine
LCALL lcddelay ;give LCD some time
MOV A, #' ' ;display space
LCALL datawrt ;call display subroutine
LCALL lcddelay ;give LCD some time
MOV A, #' ' ;display space
LCALL datawrt ;call display subroutine
LCALL lcddelay ;give LCD some time
SJMP light_over

dim:
MOV A, L_BUFFER ;move sensor data from buffer to accumulator
CJNE A, #9Dh, disp_dim
disp_dim:
JNC dark
MOV LIGHT_LEVEL, #3 ;Store level in a buffer (for threshold check)
MOV A, #'D' ;display D
LCALL datawrt ;call display subroutine
LCALL lcddelay ;give LCD some time
MOV A, #'a' ;display a
LCALL datawrt ;call display subroutine
LCALL lcddelay ;give LCD some time
MOV A, #'r' ;display r
LCALL datawrt ;call display subroutine
LCALL lcddelay ;give LCD some time
MOV A, #'k' ;display space k
LCALL datawrt ;call display subroutine
LCALL lcddelay ;give LCD some time
MOV A, #' ' ;display space
LCALL datawrt ;call display subroutine
LCALL lcddelay ;give LCD some time
SJMP light_over

dark:
MOV LIGHT_LEVEL, #4 ;Store level in a buffer (for threshold check)
MOV A, #'N' ;display N
LCALL datawrt ;call display subroutine
LCALL lcddelay ;give LCD some time
MOV A, #'i' ;display i
LCALL datawrt ;call display subroutine
LCALL lcddelay ;give LCD some time
MOV A, #'g' ;display g
LCALL datawrt ;call display subroutine
LCALL lcddelay ;give LCD some time
MOV A, #'h' ;display space h
LCALL datawrt ;call display subroutine
LCALL lcddelay ;give LCD some time
MOV A, #'t' ;display space t
LCALL datawrt ;call display subroutine
LCALL lcddelay ;give LCD some time

light_over:
RET


Threshold_check:

temp_check: ;CHECKING TEMPERATURE THRESHOLD

MOV A, T_BUFFER ;read sensor data from buffer
CJNE A, #83, t_not_equal ;check for ambient temp (32deg C)
SJMP t_within_thresh ;end of threshold checking routine

t_not_equal:
JC t_within_thresh ;jump to within threshold routine

t_outside_thresh:
SETB COOLER ;turn on heater
JB BUZZ, no_buzz
SETB BUZZER ;turn on buzzer
ACALL delay
CLR BUZZER ;turn off buzzer
SETB BUZZ ;set the buzzer flag high
no_buzz:
MOV 63h, #' '
MOV 64h, #'O'
MOV 65h, #'N'
SJMP light_check


t_within_thresh:
MOV A, T_BUFFER
CJNE A,#73, ht_off
ht_off:
JNC light_check
CLR COOLER ;turn off heater
CLR BUZZ
MOV 63h, #'O'
MOV 64h, #'F'
MOV 65h, #'F'

Light_check:
;CHECKING LIGHT THRESHOLDS
MOV A, LIGHT_LEVEL
CJNE A, #1, lev2
CLR LIGHT1 ;turn off light 1
CLR LIGHT2 ;turn off light 2
MOV 7Bh, #'O'
MOV 7Ch, #'F'
MOV 7Dh, #'F'
SJMP humid_check
lev2:
MOV A, LIGHT_LEVEL
CJNE A, #2, lev3
SETB LIGHT1 ;turn on light1
CLR LIGHT2 ;turn off light2
JB BUZZ1, no_buzz1
SETB BUZZER ;turn on buzzer
ACALL delay
CLR BUZZER ;turn off buzzer
SETB BUZZ1
no_buzz1:
MOV 7Bh, #' '
MOV 7Ch, #'O'
MOV 7Dh, #'N'
SJMP humid_check
lev3:
MOV A, LIGHT_LEVEL
CJNE A, #3, lev4
SETB LIGHT1 ;turn on light1
SETB LIGHT2 ;turn on light2
JB BUZZ1, no_buzz11
SETB BUZZER ;turn on buzzer
ACALL delay
CLR BUZZER ;turn off buzzer
no_buzz11:
MOV 7Bh, #' '
MOV 7Ch, #'O'
MOV 7Dh, #'N'
SJMP humid_check
lev4:
CLR LIGHT1 ;turn off light1
CLR LIGHT2 ;turn off light2
CLR BUZZ1
MOV 7Bh, #'O'
MOV 7Ch, #'F'
MOV 7Dh, #'F'

Humid_check: ;CHECKING RH THRESHOLD
MOV A, RH_BUFFER ;read sensor data from buffer
CJNE A, #40, h_not_equal ;check for ambient RH (correct this!!!!)
SJMP h_within_thresh ;end of threshold checking routine
h_not_equal:
JNC h_within_thresh ;jump to within threshold routine

h_outside_thresh:
SETB SPRAYER ;turn on sprayer
JB BUZZ2, no_buzz2
SETB BUZZER ;turn on buzzer
ACALL delay
CLR BUZZER ;turn off buzzer
SETB BUZZ
no_buzz2:
MOV 73h, #' '
MOV 74h, #'O'
MOV 75h, #'N'
SJMP moist_check

h_within_thresh:
CJNE A,#70, sp_off
sp_off: JC moist_check

CLR SPRAYER ;turn off sprayer
MOV 73h, #'O'
MOV 74h, #'F'
MOV 75h, #'F'

Moist_check:
;CHECKING MOISTURE THRESHOLDS
MOV A, MOIST_LEVEL
CJNE A, #1, level2
SETB PUMP ;turn on pump
JB BUZZ3, no_buzz3
SETB BUZZER ;turn on buzzer
ACALL delay
CLR BUZZER ;turn off buzzer
SETB BUZZ3
no_buzz3:
MOV 6Bh, #' '
MOV 6Ch, #'O'
MOV 6Dh, #'N'
SJMP th_end_check
level2:
MOV A, MOIST_LEVEL
CJNE A, #2, level3
CLR PUMP
CLR BUZZ3
MOV 6Bh, #'O'
MOV 6Ch, #'F'
MOV 6Dh, #'F'
SJMP th_end_check
level3:
CLR PUMP ;turn off pump
CLR BUZZ3
MOV 6Bh, #'O'
MOV 6Ch, #'F'
MOV 6Dh, #'F'

th_end_check:
end_check: RET



int_isr: ;interrupt routine for LCD button
MOV IE, #00h ;Disable interrupts
PUSH 0E0h ;Push A to stack
PUSH 00h ;Push R0
PUSH 03h ;Push R3
PUSH 04h ;Push R4
PUSH 07h ;Push R7
PUSH 82h ;Push DPL
PUSH 83h ;Push DPH
SETB LCD_INTR ;Set flag to check interrupt
POP 83h ;Pop DPH
POP 82h ;Pop DPL
POP 07h ;Pop R7 from stack
POP 04h ;Pop R4
POP 03h ;Pop R3
POP 00h ;Pop reg R0
POP 0E0h ;Pop Accumulator

MOV IE, #81h ;Enable INT0
RETI


org 600h
init1: DB " Welcome to ", 0
init2: DB "Project GreenBee", 0
init3: DB " ", 0
init4: DB " ", 0
init5: DB " ", 0
init6: DB "Initialising the", 0
init7: DB "Sensors.........", 0 ; System initialisation message

temp_tens:
DB '0','0','0','0','0','0','0','0','0','0'
DB 30h, 30h, 30h, 30h, 30h, 30h, 30h, 30h, 30h, 30h
DB 30h, 30h, 30h, 30h, 30h, 30h, 31h, 31h, 31h, 31h
DB 31h, 31h, 31h, 31h, 31h, 31h, 31h, 31h, 31h, 31h
DB 31h, 31h, 31h, 31h, 31h, 31h, 31h, 31h, 31h, 31h
DB 31h, 31h, 32h, 32h, 32h, 32h, 32h, 32h, 32h, 32h
DB 32h, 32h, 32h, 32h, 32h, 32h, 32h, 32h, 32h, 32h
DB 32h, 32h, 32h, 32h, 32h, 32h, 32h, 32h, 33h, 33h
DB 33h, 33h, 33h, 33h, 33h, 33h, 33h, 33h, 33h, 33h
DB 33h, 33h, 33h, 33h, 33h, 33h, 33h, 33h, 33h, 33h
DB 33h, 33h, 33h, 33h, 34h, 34h, 34h, 34h, 34h, 34h
DB 34h, 34h, 34h, 34h, 34h, 34h, 34h, 34h, 34h, 34h
DB 34h, 34h, 34h, 34h, 34h, 34h, 34h, 34h, 34h, 34h
DB 35h, 35h, 35h, 35h, 35h, 35h, 35h, 35h, 35h, 35h
DB 35h, 35h, 35h, 35h, 35h, 35h, 35h, 35h, 35h, 35h
DB 35h, 35h, 35h, 35h, 35h, 35h, 36h, 36h, 36h, 36h
DB 36h, 36h, 36h, 36h, 36h, 36h, 36h, 36h, 36h, 36h

temp_ones:
DB '0', '0', '1', '1', '2', '2', '2', '3', '3', '3', '4'
DB '4', '4', '5', '5', '5', '6', '6', '7', '7', '7'
DB '8', '8', '8', '8', '9', '1', '1', '1', '2', '2'
DB '3', '3', '4', '4', '5', '5', '5', '5', '5', '6'
DB '6', '6', '7', '7', '7', '8', '8', '8', '9', '9'
DB '9', '0', '0', '1', '1', '1', '2', '2', '2', '3'
DB '3', '4', '4', '4', '5', '5', '6', '6', '6', '7'
DB '7', '7', '8', '8', '9', '9', '9', '0', '0', '1'
DB '1', '1', '2', '2', '2', '3', '3', '4', '4', '4'
DB '5', '5', '5', '6', '6', '7', '7', '7', '8', '8'
DB '9', '9', '9', '0', '0', '0', '1', '1', '2', '2'
DB '2', '3', '3', '4', '4', '4', '5', '5', '6', '6'
DB '6', '6', '7', '7', '0', '0', '0', '0', '0', '0'
DB '0', '0', '0', '0', '0', '0', '0', '0', '0', '0'

temp_dec:
DB '0', '0','0','0','0','5','5','5','5','5','0' ;10TH
DB '0', '0','0','5','5','5','5','0','0','0' ;20TH
DB '0', '5','5','5','5','0','0','0','0','0' ;30TH
DB '5', '5','5','5','0','0','0','0','5','0' ;40TH
DB '0', '5','0','5','0','5','0','5','0','0' ;50TH
DB '5', '0','5','0','5','5','0','5','5','0' ;60TH
DB '5', '0','0','5','0','5','0','0','5','0' ;70TH
DB '5', '5','0','5','0','0','5','0','5','0' ;80TH
DB '0', '5','0','5','5','0','5','0','0','5' ;90TH
DB '0', '5','5','0','5','0','5','5','0','5' ;100TH
DB '0', '0','5','0','5','5','0','5','0','0' ;110TH
DB '5', '5','0','0','5','5','0','0','5','5' ;120TH
DB '0', '5','0','5','5','5','0','0','5','5' ;130TH
DB '0', '0','0','0','0','0','0','0','0','0' ;140TH

rh_tens:
DB '0', '0', '0', '0', '0', '0', '0', '0', '0', '0','0' ;10th
DB '0', '0', '0', '0', '0', '0', '0', '0', '0', '0' ;20th
DB '0', '0', '0', '0', '0', '0', '0', '0', '0', '0' ;30th
DB '0', '0', '0', '0', '0', '0', '0', '0', '0', '0' ;40th
DB '0', '0', '0', '0', '0', '0', '0', '0', '0', '0' ;50th

DB '0', '0', '0', '0', '0', '0', '0', '0', '0', '0' ;60th
DB '1', '1', '1', '1', '1', '1', '1', '1', '1', '1' ;70th
DB '1', '1', '1', '2', '2', '2', '2', '2', '2', '2' ;80th
DB '2', '2', '2', '2', '2', '2', '2', '3', '3', '3' ;90th
DB '3', '3', '3', '3', '3', '3', '3', '3', '3', '3' ;100th

DB '3', '3', '3', '3', '4', '4', '4', '4', '4', '4' ;110th
DB '4', '4', '4', '4', '4', '4', '4', '4', '4', '5' ;120th
DB '5', '5', '5', '5', '5', '5', '5', '5', '5', '5' ;130th
DB '5', '5', '5', '5', '5', '6', '6', '6', '6', '6' ;140th
DB '6', '6', '6', '6', '6', '6', '6', '6', '6', '6' ;150th
DB '6', '7', '7', '7', '7', '7', '7', '7', '7', '7' ;160th
DB '7', '7', '7', '7', '7', '7', '7', '8', '8', '8' ;170th
DB '8', '8', '8', '8', '8', '8', '8', '8', '8', '9' ;180th
DB '9', '9', '9', '9', '9', '9', '9', '9', '9', '9' ;190th
DB '9', '9', '9', '9', '9', '9', '9', '9', '9', '9' ;200th

DB '0', '0', '0', '0', '0', '0', '0', '0', '0', '0' ;210th
DB '0', '0', '0', '*', '*', '*', '*', '*', '*', '*' ;220th
DB '*', '*', '*', '*', '*', '*', '*', '*', '*', '*' ;230th
DB '*', '*', '*', '*', '*', '*', '*', '*', '*', '*' ;240th
DB '*', '*', '*', '*', '*', '*', '*', '*', '*', '*' ;250th
DB '*', '*', '*', '*', '*' ;250th


rh_ones:
DB '0', '0', '0', '0', '0', '0', '0', '0', '0', '0', '0' ;10th
DB '0', '0', '0', '0', '0', '0', '0', '0', '0', '0' ;20th
DB '0', '0', '0', '0', '0', '0', '0', '0', '0', '0' ;30th
DB '0', '0', '0', '0', '0', '0', '0', '0', '0', '0' ;40th
DB '1', '1', '2', '2', '3', '3', '4', '4', '5', '5' ;50th

DB '6', '7', '7', '8', '8', '9', '0', '0', '1', '1' ;60th
DB '3', '4', '4', '4', '5', '5', '6', '6', '7', '8' ;70th
DB '9', '9', '0', '1', '1', '1', '2', '3', '4', '5' ;80th
DB '5', '6', '7', '7', '7', '8', '9', '0', '0', '0' ;90th
DB '1', '2', '3', '3', '4', '4', '5', '6', '6', '7' ;100th

DB '8', '8', '8', '9', '0', '1', '2', '2', '3', '3' ;110th
DB '4', '4', '5', '6', '7', '7', '8', '9', '9', '0' ;120th
DB '0', '1', '1', '2', '3', '3', '4', '5', '5', '6' ;130th
DB '6', '7', '8', '9', '0', '0', '0', '1', '1', '2' ;140th
DB '3', '4', '4', '4', '5', '6', '7', '7', '8', '8' ;150th

DB '9', '9', '1', '1', '2', '2', '3', '4', '4', '5' ;160th
DB '6', '7', '7', '7', '5', '8', '9', '0', '1', '1' ;170th
DB '1', '2', '3', '4', '5', '5', '6', '6', '7', '7' ;180th
DB '8', '8', '9', '9', '0', '1', '2', '3', '3', '4' ;190th
DB '4', '4', '5', '6', '7', '7', '8', '8', '9', '0' ;200th

DB '*', '*', '*', '*', '*', '*', '*', '*', '*', '*' ;210th
DB '*', '*', '*', '*', '*', '*', '*', '*', '*', '*' ;220th
DB '*', '*', '*', '*', '*', '*', '*', '*', '*', '*' ;230th
DB '*', '*', '*', '*', '*', '*', '*', '*', '*', '*' ;240th
DB '*', '*', '*', '*', '*', '*', '*', '*', '*', '*' ;250th
DB '*', '*', '*', '*', '*' ;256th

rh_dec:
DB '0', '0', '0', '0', '0', '0', '0', '0', '0', '0', '0';10th
DB '0', '0', '0', '0', '0', '0', '0', '0', '0', '0' ;20th
DB '0', '0', '0', '1', '2', '3', '4', '5', '6', '6' ;30th
DB '7', '7', '8', '8', '8', '9', '9', '9', '0', '0' ;40th
DB '1', '1', '2', '2', '3', '3', '4', '4', '5', '5' ;50th

DB '6', '7', '7', '8', '8', '8', '9', '9', '0', '0' ;60th
DB '0', '1', '1', '1', '2', '2', '3', '3', '3', '4' ;70th
DB '5', '5', '5', '5', '6', '6', '7', '1', '3', '5' ;80th
DB '6', '0', '0', '6', '7', '9', '2', '0', '8', '7' ;90th
DB '6', '4', '3', '5', '1', '9', '7', '5', '6', '3' ;100th

DB '1', '9', '8', '7', '5', '3', '2', '6', '0', '8' ;110th
DB '6', '8', '4', '2', '0', '7', '8', '6', '4', '3' ;120th
DB '0', '1', '9', '7', '5', '4', '3', '1', '9', '6' ;130th
DB '7', '5', '4', '2', '0', '0', '8', '6', '1', '4' ;140th
DB '2', '0', '8', '4', '6', '4', '3', '7', '1', '8' ;150th

DB '7', '5', '1', '9', '7', '9', '3', '7', '5', '9' ;160th
DB '6', '4', '7', '7', '6', '8', '4', '2', '5', '8' ;170th
DB '9', '6', '5', '3', '5', '4', '7', '6', '5', '7' ;180th
DB '8', '6', '5', '3', '7', '1', '2', '3', '5', '4' ;190th
DB '0', '4', '5', '6', '2', '7', '8', '8', '9', '0' ;200th

DB '*', '*', '*', '*', '*', '*', '*', '*', '*', '*' ;210th
DB '*', '*', '*', '*', '*', '*', '*', '*', '*', '*' ;220th
DB '*', '*', '*', '*', '*', '*', '*', '*', '*', '*' ;230th
DB '*', '*', '*', '*', '*', '*', '*', '*', '*', '*' ;240th
DB '*', '*', '*', '*', '*', '*', '*', '*', '*', '*' ;250th
DB '*', '*', '*', '*', '*' ;256th

END

you should tell what is the mistake and what problem you are having...

i think your project is green house monitoring...... a robot that sense temp , humidity and other parameters in green house and transmit data to central station right?

i think the loop is not working

@ckshivaram

Which moisture sensor is used here?

I m having SY-HS-220 humidity sensor
Datasheet shows "GRAPH" output of sensor in volts Vs Ralative humidity at 25degree Celsius.

Currently Temperature is about 31 degree Celsius, and output voltage is 0.95V

How can i calculate the relative humidity?:roll:

i got moisture / humidity sensors from www.nskelectronics.in

they have 2 models, both are very simple to interface..........

thanks ckshivaram
my interfacing is done...
I just wanted to display readings... Can you please explain "calculation of Humidity" at other than 25degree Celsius.