Abstract:
The aim of this system is to develop water level
and temperature controlling system. The system can
control not only water amount but also water
temperature with an appropriate value. To construct
this system, PIC16F84A microcontroller is used.
The main aspect of this system is automatic control
of filling tank using level switch sensor. It can be
done by means of the position sensor which senses
the position of the copper rod. The operations are
measuring, heating and filling. Thermistor is used
for temperature sensor. The user sets the required
temperature by using manually preset control. To
fill the water, AC motor is used. The circuit is
activated by a start switch and the system is
automatically filled the tank and stopped when it
reaches the high level. When the water is reached
the low level, this system opens heating coil to
control set temperature of water. LEDs which use in
this circuit are common output types. If water
temperature is equal to the setting values, system
turns on siren alarm. If water level is high, system is
automatically closed to fill water into tank. This
system is implemented by using Pic Basic Language.
