Sheep_Counter

A counter to store the number of sheep entering and leaving a fence.
Used arduino uno R3 and two ultrasonic sensors for the circuit.
One ultrasonic sensor is used to count the sheeps entering the fence and another sensor is used to count the sheeps leaving the fence.
A variable count can be used to add sheeps if they enter the fence and subtract if they leave the fence.
Read the ultrasonic sensors using the respective trigger pins and echo pins attached to the arduino.
The ultrasonic sensors wil count the sheeps if the distance is less than 100 cm.
Finally print the value in the serial monitor.