The role of enable pin in motor driver IC is …………… .

1. To modify its current
2. To modify its voltage
3. To enable its working
4. None of these

Fill in the blanks:

1. ……………. are used to move the wheels of the robot.
2. Motor Driver L293D has ……………. input pins.
3. ……………. pin in Arduino is used to provide a power supply of 5V to other components.
4. Delay function takes input in ……………. .
5. In forward mode, all the output pins receive ……………. values.

Explain the use of digitalWrite() function.

Explain the structure of breadboard.