Arduino Companion Robot | Science Project

The video tutorial explains how to build a companion robot using an Arduino, a flex sensor, and a vibration motor. It covers the assembly of the circuit, integration of components into a stuffed animal, and provides an overview of the code needed to simulate purring. The tutorial emphasizes the importance of careful handling of components and offers tips for customizing the design.

What is the primary purpose of the companion robot discussed in the video?

• To act as a security device

• To serve as a toy for children

• To provide companionship in environments where live animals are not feasible

• To replace human caregivers in hospitals

What are the two main components used in the companion robot's circuit?

• Temperature sensor and LED

• Flex sensor and vibration motor

• Microphone and speaker

• Light sensor and buzzer

Why is hot glue used on the vibration motor wires?

• To prevent the wires from breaking easily

• To enhance the motor's performance

• To make the wires more flexible

• To improve the motor's speed

What is the purpose of using a voltage divider in the circuit?

• To increase the voltage output

• To decrease the current flow

• To measure changes in resistance as voltage

• To stabilize the power supply

Why is a MOSFET used in the circuit?

• To increase the Arduino's memory

• To amplify the sensor signal

• To convert AC to DC

• To control the power to the motor

What is the role of the threshold variable in the Arduino code?

• To control the LED brightness

• To adjust the sensor's sensitivity

• To determine when the motor should be activated

• To set the maximum speed of the motor

How can the purring effect be customized in the Arduino code?

• By altering the motor's physical position

• By using a different type of sensor

• By adjusting the delay times in the loop

• By changing the motor's voltage