Arduino Basics

  1. What is Arduino? Answer: Arduino is an open-source electronics platform based on easy-to-use hardware and software.
  2. What is the difference between Arduino and Raspberry Pi? Answer: Arduino is a microcontroller platform, whereas Raspberry Pi is a single-board computer.
  3. What are the basic components of an Arduino board? Answer: The basic components of an Arduino board are the microcontroller, USB port, power jack, reset button, and pins.
  4. What is a microcontroller? Answer: A microcontroller is a small computer on a single integrated circuit that is designed to control specific devices or systems.
  5. What is a pin? Answer: A pin is a physical connection point on an Arduino board that can be used to input or output electrical signals.
  6. What is a breadboard? Answer: A breadboard is a tool used to prototype electronic circuits by allowing the easy insertion and removal of electronic components.
  7. What is a resistor? Answer: A resistor is an electronic component that resists the flow of electrical current.
  8. What is a capacitor? Answer: A capacitor is an electronic component that stores electrical energy.
  9. What is a LED? Answer: A LED (light-emitting diode) is an electronic component that emits light when current flows through it.
  10. What is a servo motor? Answer: A servo motor is a type of motor that can be controlled precisely to move to a specific position.
  11. What is a sensor? Answer: A sensor is an electronic component that can detect changes in the environment and provide a signal or output.
  12. What is a potentiometer? Answer: A potentiometer is a variable resistor that can be adjusted to change the resistance and control the flow of electrical current.
  13. How do you upload a program to an Arduino board? Answer: To upload a program to an Arduino board, connect the board to a computer via a USB cable, open the Arduino software, select the appropriate board and port, and click the upload button.
  14. What is the Arduino IDE? Answer: The Arduino IDE is the software used to write and upload code to an Arduino board.
  15. What is a sketch? Answer: A sketch is a program written in the Arduino IDE that is uploaded to an Arduino board.
  16. What is the setup() function in an Arduino sketch? Answer: The setup() function is a predefined function in an Arduino sketch that is executed once at the start of the program to initialize the board.
  17. What is the loop() function in an Arduino sketch? Answer: The loop() function is a predefined function in an Arduino sketch that is executed repeatedly as long as the board is powered on.
  18. What is the pinMode() function used for? Answer: The pinMode() function is used to set the mode of a pin as either input or output.
  19. What is the digitalWrite() function used for? Answer: The digitalWrite() function is used to write a digital value (either HIGH or LOW) to a pin set as output.
  20. What is the analogRead() function used for? Answer: The analogRead() function is used to read the value of an analog pin.
  21. What is the analogWrite() function used for? Answer: The analogWrite() function is used to write a PWM (pulse width modulation) signal to a pin set as output.
  22. What is the delay() function used for? Answer: The delay() function is used to pause the execution of a program for a specified amount of time.
  23. What is serial communication in Arduino? Answer: Serial communication in Arduino is a way to send and receive data between the board and a computer or other device.
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