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Electronics Worksheet: What Is a Microcontroller

Electronics lesson 21: What is a microcontroller? · Set 239 · 40 questions
TalentJR

Remember (One chip, one job): Microcontroller = processor + memory + input/output pins on one chip. Board parts: USB port (power and code), pins, reset button, power LED, main chip, voltage regulator. Write the program → upload over USB → it runs its loop for ever; power by USB or a small battery.

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  1. 1.True or false: a laptop has a built-in keyboard. (a) False (b) True
  2. 2.🤖 Does a toy robot usually have a microcontroller inside? (a) No (b) Yes
  3. 3.🤖 Microcontroller or laptop: which one runs one small program? (a) laptop (b) microcontroller
  4. 4.🧭 Which part of a microcontroller board restarts the program? (a) the pins (b) the power LED (c) the main chip (d) the reset button
  5. 5.Which of these has no microcontroller inside? (a) a toy robot (b) a TV remote (c) a digital alarm clock (d) a spinning top
  6. 6.True or false: a spinning top usually has a microcontroller inside. (a) False (b) True
  7. 7.Which job is done by the pins? (a) brings power and code (b) keeps the voltage steady (c) restarts the program (d) connect sensors and LEDs
  8. 8.🧭 Which part of a microcontroller board keeps the voltage steady? (a) the power LED (b) the main chip (c) the voltage regulator (d) the reset button
  9. 9.🤖 What is a microcontroller? (a) a type of battery (b) a computer on one chip (c) a kind of bulb (d) a big desktop computer
  10. 10.🤖 Does a digital alarm clock usually have a microcontroller inside? (a) No (b) Yes
  11. 11.🧭 Which part of a microcontroller board brings power and code? (a) the power LED (b) the USB port (c) the voltage regulator (d) the reset button
  12. 12.True or false: a toy robot has no microcontroller inside. (a) False (b) True
  13. 13.Which job is done by the main chip? (a) brings power and code (b) connect sensors and LEDs (c) runs the program (d) shows the board is on
  14. 14.🤖 Microcontroller or laptop: which one uses very little power? (a) laptop (b) microcontroller
  15. 15.🤖 Microcontroller or laptop: which one has no screen of its own? (a) laptop (b) microcontroller
  16. 16.🤖 When the main loop of a microcontroller program ends, what happens? (a) it deletes itself (b) it starts again (c) it stops forever (d) the board breaks
  17. 17.🤖 Microcontroller or laptop: which one has a built-in keyboard? (a) microcontroller (b) laptop
  18. 18.Which job is done by the power LED? (a) restarts the program (b) keeps the voltage steady (c) shows the board is on (d) brings power and code
  19. 19.True or false: a laptop runs one small program. (a) True (b) False
  20. 20.True or false: a microcontroller uses very little power. (a) False (b) True
  21. 21.Which of these has no microcontroller inside? (a) a wind-up toy (b) a microwave oven (c) a washing machine (d) a TV remote
  22. 22.🤖 Does a hand pump usually have a microcontroller inside? (a) Yes (b) No
  23. 23.Which of these has no microcontroller inside? (a) a digital alarm clock (b) a TV remote (c) a washing machine (d) a hand pump
  24. 24.True or false: a digital alarm clock usually has a microcontroller inside. (a) False (b) True
  25. 25.Which of these usually has a microcontroller inside? (a) a plain wall switch (b) a bicycle bell (c) a digital thermometer (d) a candle
  26. 26.True or false: a laptop has no screen of its own. (a) False (b) True
  27. 27.🤖 Does a bicycle bell usually have a microcontroller inside? (a) No (b) Yes
  28. 28.🤖 Which is a safe power source for a beginner microcontroller board? (a) a 230 V cable (b) bare mains wires (c) USB or a 9 V battery (d) a wall socket directly
  29. 29.🧭 Which part of a microcontroller board runs the program? (a) the main chip (b) the power LED (c) the USB port (d) the pins
  30. 30.Which of these has no microcontroller inside? (a) a microwave oven (b) a candle (c) a digital thermometer (d) a TV remote
  31. 31.🤖 Microcontroller or laptop: which one needs much more power? (a) microcontroller (b) laptop
  32. 32.Which job is done by the reset button? (a) keeps the voltage steady (b) brings power and code (c) restarts the program (d) connect sensors and LEDs
  33. 33.True or false: a toy robot usually has a microcontroller inside. (a) False (b) True
  34. 34.True or false: a laptop uses very little power. (a) True (b) False
  35. 35.🤖 Microcontroller or laptop: which one runs many apps at once? (a) laptop (b) microcontroller
  36. 36.Which of these usually has a microcontroller inside? (a) a wind-up toy (b) a microwave oven (c) a candle (d) a plain wall switch
  37. 37.Which of these usually has a microcontroller inside? (a) a smart watch (b) a hand pump (c) a plain wall switch (d) a wind-up toy
  38. 38.Which job is done by the USB port? (a) shows the board is on (b) restarts the program (c) brings power and code (d) runs the program
  39. 39.True or false: a microcontroller has no screen of its own. (a) True (b) False
  40. 40.🧭 Which part of a microcontroller board connect sensors and LEDs? (a) the reset button (b) the USB port (c) the power LED (d) the pins

Answer key

  1. True
  2. Yes
  3. microcontroller
  4. the reset button
  5. a spinning top
  6. False
  7. connect sensors and LEDs
  8. the voltage regulator
  9. a computer on one chip
  10. Yes
  11. the USB port
  12. False
  13. runs the program
  14. microcontroller
  15. microcontroller
  16. it starts again
  17. laptop
  18. shows the board is on
  19. False
  20. True
  21. a wind-up toy
  22. No
  23. a hand pump
  24. True
  25. a digital thermometer
  26. False
  27. No
  28. USB or a 9 V battery
  29. the main chip
  30. a candle
  31. laptop
  32. restarts the program
  33. True
  34. False
  35. laptop
  36. a microwave oven
  37. a smart watch
  38. brings power and code
  39. True
  40. the pins

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