Water Level Control using Micro control 89C51

[nitinpatil]

Hi Jayant,

I run this code in Keil but get the errors, I resolve them, but I think to tell u
Error on OV its not take this variable so I change this to HV, error solve,
again got error on

elseif((UV == 0) || (OV == 0)pump = 0;

so I change it to

else pump = 0;

Here I corrected this code and got the hex file

#include<stdio.h>
#include<reg51.h>
sbit low  = P2^0;
sbit mid  = P2^1;
sbit high = P2^2;
sbit UV   = P2^3;
sbit HV   = P2^4;
sbit pump = P3^4;
 
 
void main()
{
 
    while(1)
	{
 
        if((UV) && (HV))
		{
            if(low)
							pump = 1;
            if(high)
							pump = 0;
     }
		
        else	pump = 0;

   }
}

 

[jayanth.devarayanadurga]

Yes. Use Auto-Transformer to adjust the preset. Adjust the voltage to be 280V (upper limit) and then adjust the OV preset so that pump (relay) turns OFF. Then set voltage to 180V and then adjust UV preset so that relay turns OFF. After this you can give any voltage > 180 and < 280 and test. The Machine Tooled Socket quality is better compared to ordinary sockets.

 

[nitinpatil]

Thank u... U all guys...
That help me lot..
after successfully run this project, I will come to know u all...

 

[nitinpatil]

Hey guys,
I getting problem in proteus, actually i want to run on proteus, because I want to do lot of changes in it, but first of all need to be run this ckt successfully,
In 1st image in the cut part their is AC main power supply (230V,50hz) connected to step down transformer, to the bridge

And code is here

#include<reg51.h>
sbit I_A = P2^0;
sbit I_B = P2^1;
sbit I_C = P2^2;
sbit RLY = P3^4;
sbit LED_MTR = P1^0;
sbit LED_C = P1^1;
sbit LED_B = P1^2;
sbit I_L = P2^3;
sbit I_H = P2^4;
void main()
{
    while(1)
    {
        if((I_B&I_C)==1)
        {
            if((I_L&I_H)==1)
            {
                RLY=1;
                LED_MTR=1;
                LED_B=1;
                LED_C=0;
            }
            else
            {
                RLY=0;
                LED_MTR=0;
                LED_B=1;
                LED_C=0;
            }
        }
        else
        {
                RLY=0;
                LED_MTR=0;
                LED_B=1;
                LED_C=1;    
        }
    }
}