Line Tracking Code

What is the purpose of the #define statements at the beginning of the code?

• To define functions

• To define variables

• To define constants

• To define classes

What is the purpose of the Sensor_IO_Config() function?

• To configure the input/output pins for the sensors

• To read the values from the sensors

• To control the speed of the motors

• To control the direction of the motors

What does the digitalRead() function do?

• It reads an analog value from a pin

• It reads a digital value from a pin

• It writes an analog value to a pin

• It writes a digital value to a pin

What is the purpose of the M_Control_IO_config() function?

• To configure the input/output pins for the sensors

• To read the values from the sensors

• To control the speed of the motors

• To control the direction of the motors

What does analogWrite() do?

• It reads an analog value from a pin

• It reads a digital value from a pin

• It writes an analog value to a pin

• It writes a digital value to a pin

What is Lpwm_val and Rpwm_val used for?

• To store the state of left and right sensors

• To store the speed of left and right wheels

• To store the direction of left and right wheels

• To store the state of left and right motors

What is Car_state used for?

• To store the state of left and right sensors

• To store the speed of left and right wheels

• To store the direction of left and right wheels

• To store the state of left and right motors

What does pinMode() do?

• It sets up an input/output pin on Arduino board.

• It reads an analog value from a pin.

• It writes an analog value to a pin.

• It writes a digital value to a pin.

What does advance() function do?

• To make car go forward.

• To make car go backward.

• To make car turn left.

• To make car turn right.

What does Set_Speed(unsigned char pwm) function do?

• To set speed of car.

• To set direction of car.

• To set state of car moving.

•   To set state of left and right sensors.