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Electronics Worksheet: What Is a Microcontroller

Electronics lesson 21: What is a microcontroller? · Set 688 · 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.

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

Answer key

  1. True
  2. a bicycle bell
  3. the voltage regulator
  4. a candle
  5. False
  6. the pins
  7. Yes
  8. a wind-up toy
  9. restarts the program
  10. shows the board is on
  11. the power LED
  12. False
  13. the reset button
  14. brings power and code
  15. microcontroller
  16. microcontroller
  17. No
  18. True
  19. a spinning top
  20. False
  21. True
  22. Yes
  23. the main chip
  24. laptop
  25. True
  26. False
  27. True
  28. a plain wall switch
  29. True
  30. False
  31. False
  32. Yes
  33. Yes
  34. USB or a 9 V battery
  35. True
  36. runs the program
  37. True
  38. True
  39. microcontroller
  40. False

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