Water Motor Control System with Water Level Indicator

[shimanto]

I want to build a water motor control system which will display the level of water in an LCD. When the tank is full motor will be switched OFF automatically and when the water level is below a certain level, the motor will be switched ON. Please help me to build the circuitry :?:

 

[milan.rajik]

You have to use Potentiometic float or eTape for sensing the liquid level. Check what ADC value you get for water low and high levels for Over Head Tank and water low level for SUMP. Two ADC channels are needed. If water in SUMP is not low and water in Over Head Tank (OHT) is low then turn ON pump. If water in OHT is high then turn OFF pump.

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Code C - [expand]
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while(1) {
 
    sumpVal = adc_read(0);
    ohtVal = adc_raed(1);
 
    if(sumpVal > sumpLowVal) {
 
        if(ohtVal <= ohtLowVal) {
            //turn ON pump
        }
        else if(ohtVal >= ohtHighVal) {
            //turn OFF pump     
        }
    }
    else {
        //pump off
    }
 
}

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