Page 104 - Toucpad robotics C11

∑ Pseudocode:

Start
While robot ON
If left_sensor = black AND right_sensor = black Move forward

If left_sensor = black AND right_sensor = white Turn left
If left_sensor = white AND right_sensor = black Turn right
End
2. A school wants to automate classroom lights using sensors and a microcontroller. Suggest a design, mentioning
the components required and how computing logic will be applied.
Ans. Classroom light automation:
Components: Light sensor (LDR), microcontroller (Arduino), relay, LED/bulb.

Logic:
If light intensity < threshold Switch ON light.
Else Switch OFF light.

Application: Saves energy by automatic lighting.

Unsolved Questions

SECTION A (Objective Type Questions)
QUIZ
A. Tick ( ) the correct option.
1. Boolean logic is based on:
i. Sets and subsets ii. True/False values

iii. Probability theory iv. Natural numbers
2. The NOT gate produces an output that is:
i. Same as input ii. Opposite of input

iii. Always 1 iv. Always 0
3. Which of the following is most suitable for real-time control of motors and sensors?

i. Raspberry Pi ii. Arduino Uno
iii. Laptop computer iv. Cloud server

4. A Raspberry Pi is primarily used when:
i. Only simple switching is required

ii. Complex computation and multitasking are needed
iii. Input devices are unnecessary

iv. Power supply is unlimited
5. The flowchart symbol for a process (task execution) is:

i. Diamond ii. Oval
iii. Rectangle iv. Parallelogram

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Touchpad Robotics - XI