useful for automation based on microcontroller

1. PROJECT MEMBERS
1.JOSHI PARTH S. [090340109038]
2.MALVI ANKIT M. [090340109003]
3.SHAH MIHIR M. [090340109022]
4.PATEL PARTH B. [090340109034]
Guided by-> Mr. MAULIK SHAH

2. Apparatus-:
1.Watertank
2.8051 microconteroller
3.Spdt relay
4.Capacitors
5.Resistor
6.Crystal
7.Magnetic sensor
8.motor+pump
9.Rectifier circuit
10.BC547 transistor
11.Transformer
12.AN7805 voltage regulator

3. START
-> ASK THE USER FOR SELECTING THE MODE
-> COMPILER WILL JUMP TO THE SELSECTED
MODE
AUTOMATIC
ON/OFF
MODE
PUMP WILL AUTOMATICALLY
ON/OFF.
IF LEVEL GOES DOWN->PUMP ON
IF LEVEL IS FULL ->PUMP OFF
MODE1 MODE2 MODE3
USER
DEFINED
ON/OFF
MODE
COMPENSAT
ION MODE
USER WILL TURN
MANUALLY ON/OFF THE
PUMP
CONTROLLER WILL KEEP
AUTOMATICALLY
COMPANSATE A SPECIFIC
WATER LEVEL.

4. Controll Circuit Diagram

5. PROGRAMMING
org 0000h
mov a,#00
mov p0,a
mov p1,a set ‘0’ to all the pins
mov p2,a
mov p3,a
setb p1.0 ;switch1
setb p1.1 ;switch2
setb p1.2 ;switch3
setb p1.3 ;switch4
switch:
jnb p1.0,mode1 ;mode1=manual on off mode use on off switch switch 5 and switch 6
jnb p1.1,mode2 ;mode2=automatic on off mode , use sensor upper and sensor lower
jnb p1.2,mode3 ;mode3=compansating mode use middle sensor5
sjmp switch
mode1: setb p1.4 ; switch5 to on the motor

6. setb p1.5 ;switch6 for off the motor
jb p1.4,mode1
motoron: setb p2.0 ;on the motor
jb p1.5,motoron ;motor on till off presed
clr p2.0 ;stop the motor
clr p1.4
clr p1.5
sjmp mode1
mode2: setb p0.2 ;upper level sensor
setb p0.3 ;middle level sensor
setb p0.4 ;lover level sensor
here: jnb p0.4,here ;monitor lower level sensor
setb p2.0 ;start the motor
here1:jb p0.2,here1 ;monitor upper sensor
clr p2.0 ;stop the motor
clr p0.2
clr p0.3
clr p0.4
sjmp mode2

7. clr p2.0 ;stop the motor
clr p1.4
clr p1.5
sjmp mode1
mode2: setb p0.2 ;upper level sensor
setb p0.3 ;middle level sensor
setb p0.4 ;lover level sensor
here: jnb p0.4,here ;monitor lower level sensor
setb p2.0 ;start the motor
here1:jb p0.2,here1 ;monitor upper sensor
clr p2.0 ;stop the motor
clr p0.2
clr p0.3
clr p0.4
sjmp mode2

8. mode3:setb p0.3 ;set middle level sensor
here2:jnb p0.3,here2 ;monitor middle sensor
setb p2.0 ;start the motor
here3: jb p0.3,here3 ;monitor middle sensor
clr p2.0
clr p0.3
sjmp mode3
end

9. HARDWARE DESIGN OVERVIEW

10. PROGRAMMING in KEIL

11. Our device Price estimation
No. Elements Price(Rs.)
1. Microcontroller AT89c2051 Controller 40
2. Rectifier and Voltage Regulator 50
3. Relay (220 v A.C.) 45
4. Current amplifier I.C.(ULN 2308) 15
5. Magnetic proximity sensors (3) 40
6. Switches , cable and L.E.D.s,plug points 30
7. P.C.B. 120
8. Man effort cost 80
9. Extra duties and charges 50
TOTAL 470

12. LOGIC IC

13. DESCRIPTION OF CIRCUIT &
COMPONENTS
1.Transformer-: To step down voltage from 230v to
12v(A.C).
2.Rectifier-: Bridge rectifier is used to convert 12v ac into
D.C.
3.capacitor-: To filter the rectifier output supply.
4.AN7805-: To get regulated 5v dc supply for controller.
5.8051(microcontroller)-: to sence the position of
magnetic sensor.
6.crystal-: it is use for controller operation.
7.Magnetic sensor-: It is just a switch . When magnet
comes near it, the sensor switch will be close.

14. 8.BC547(transistor)-: it will give the 12v d.c.
current to the relay when it gets the signal from
microcontroller.
9.SPDT relay-: It will switch the motor when it
gets the power from transistor.
10.resistor-: to limit the base current of BC547.
11.motor+pump-: to suck the water from the
ground and send it for fill the watertank.

15. Application-:
1.This system can be used anywhere ,where
water pump are used to fill the watertank.
For example-:
-residential buildings
-Municipality water supply service
-industries

16. Advantages-:
1.Fully automatic service , so there is no need
of mankind.
2.Low power consuption circuit.
3.Easy to construct.
4.Low coast.
5.Reliability
6.Less chances of failure