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Electronics Worksheet: What Is a Microcontroller

Electronics lesson 21: What is a microcontroller? · Set 51 · 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.🤖 Does a digital thermometer usually have a microcontroller inside? (a) No (b) Yes
  2. 2.Which job is done by the power LED? (a) keeps the voltage steady (b) restarts the program (c) shows the board is on (d) connect sensors and LEDs
  3. 3.🤖 Microcontroller or laptop: which one needs much more power? (a) laptop (b) microcontroller
  4. 4.True or false: a laptop has a built-in keyboard. (a) True (b) False
  5. 5.🤖 Does a candle usually have a microcontroller inside? (a) Yes (b) No
  6. 6.True or false: a laptop needs much more power. (a) False (b) True
  7. 7.Which of these usually has a microcontroller inside? (a) a wind-up toy (b) a spinning top (c) a digital thermometer (d) a candle
  8. 8.Which job is done by the USB port? (a) runs the program (b) shows the board is on (c) brings power and code (d) restarts the program
  9. 9.Which of these has no microcontroller inside? (a) a digital thermometer (b) a toy robot (c) a microwave oven (d) a candle
  10. 10.True or false: a digital thermometer has no microcontroller inside. (a) False (b) True
  11. 11.🤖 Does a digital alarm clock usually have a microcontroller inside? (a) Yes (b) No
  12. 12.True or false: a plain wall switch has no microcontroller inside. (a) True (b) False
  13. 13.Which of these has no microcontroller inside? (a) a washing machine (b) a bicycle bell (c) a toy robot (d) a TV remote
  14. 14.🧭 Which part of a microcontroller board brings power and code? (a) the pins (b) the reset button (c) the USB port (d) the main chip
  15. 15.🤖 Does a spinning top usually have a microcontroller inside? (a) No (b) Yes
  16. 16.🧭 Which part of a microcontroller board restarts the program? (a) the pins (b) the power LED (c) the main chip (d) the reset button
  17. 17.🤖 Microcontroller or laptop: which one runs one small program? (a) laptop (b) microcontroller
  18. 18.Which of these usually has a microcontroller inside? (a) a plain wall switch (b) a toy robot (c) a bicycle bell (d) a wind-up toy
  19. 19.Which job is done by the pins? (a) connect sensors and LEDs (b) runs the program (c) restarts the program (d) brings power and code
  20. 20.🤖 Microcontroller or laptop: which one uses very little power? (a) laptop (b) microcontroller
  21. 21.True or false: a wind-up toy usually has a microcontroller inside. (a) True (b) False
  22. 22.True or false: a toy robot has no microcontroller inside. (a) False (b) True
  23. 23.🤖 Microcontroller or laptop: which one has a built-in keyboard? (a) microcontroller (b) laptop
  24. 24.🧭 Which part of a microcontroller board runs the program? (a) the main chip (b) the pins (c) the reset button (d) the voltage regulator
  25. 25.True or false: a laptop runs many apps at once. (a) False (b) True
  26. 26.🧭 Which part of a microcontroller board shows the board is on? (a) the pins (b) the voltage regulator (c) the main chip (d) the power LED
  27. 27.True or false: a digital alarm clock has no microcontroller inside. (a) False (b) True
  28. 28.True or false: a laptop uses very little power. (a) True (b) False
  29. 29.True or false: a microcontroller has a built-in keyboard. (a) True (b) False
  30. 30.Which of these usually has a microcontroller inside? (a) a microwave oven (b) a candle (c) a bicycle bell (d) a spinning top
  31. 31.True or false: a microwave oven has no microcontroller inside. (a) False (b) True
  32. 32.Which of these usually has a microcontroller inside? (a) a hand pump (b) a wind-up toy (c) a bicycle bell (d) a smart watch
  33. 33.Which of these usually has a microcontroller inside? (a) a bicycle bell (b) a wind-up toy (c) a washing machine (d) a hand pump
  34. 34.True or false: a TV remote has no microcontroller inside. (a) True (b) False
  35. 35.🤖 Does a microwave oven usually have a microcontroller inside? (a) No (b) Yes
  36. 36.Which of these usually has a microcontroller inside? (a) a TV remote (b) a bicycle bell (c) a hand pump (d) a wind-up toy
  37. 37.🤖 Does a plain wall switch usually have a microcontroller inside? (a) Yes (b) No
  38. 38.🤖 Does a smart watch usually have a microcontroller inside? (a) Yes (b) No
  39. 39.True or false: a microcontroller needs much more power. (a) True (b) False
  40. 40.Which of these has no microcontroller inside? (a) a washing machine (b) a digital thermometer (c) a plain wall switch (d) a digital alarm clock

Answer key

  1. Yes
  2. shows the board is on
  3. laptop
  4. True
  5. No
  6. True
  7. a digital thermometer
  8. brings power and code
  9. a candle
  10. False
  11. Yes
  12. True
  13. a bicycle bell
  14. the USB port
  15. No
  16. the reset button
  17. microcontroller
  18. a toy robot
  19. connect sensors and LEDs
  20. microcontroller
  21. False
  22. False
  23. laptop
  24. the main chip
  25. True
  26. the power LED
  27. False
  28. False
  29. False
  30. a microwave oven
  31. False
  32. a smart watch
  33. a washing machine
  34. False
  35. Yes
  36. a TV remote
  37. No
  38. Yes
  39. False
  40. a plain wall switch

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