-Arduino Uno.
-Jumper wires.
-12 DC Water pump
-Two buckets(Tank and Reservour)
-5V relay
-16X2 LCD display
-Ultrasonic Sensor x2.
The Arduino uno was used as the system microcontroller. The two untrasonic sensors each placed at the top of each bucket were used to measure the water level in both the tank and the reservour. When the water level in the tank goes below 10% the relay contacts(Normally open) are clossed which in turn opens the pump which pumps water from the Reservour to the tank.When the water level in the tank reaches 80% the MCU opens the relay contacts hence closing the pump.The system also ensures that the pump doesnt pump dry(When there's no water in the reservour)
ARDUINO TANK ULTRASONIC
D2 TRIG
D3 ECHO
GND GND
VCC VCC
ARDUINO RESERVE ULTRASONIC
D4 TRIG
D5 ECHO
GND GND
VCC VCC
ARDUINO LCD I2C
SCL A5
SDA A4
GND GND
VCC VCC
ARDUINO RELAY
D7 IN1
GND GND
VCC VCC