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Electronics Worksheet: What Is a Microcontroller

Electronics lesson 21: What is a microcontroller? · Set 568 · 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.🤖 Does a toy robot usually have a microcontroller inside? (a) No (b) Yes
  2. 2.True or false: a digital alarm clock has no microcontroller inside. (a) False (b) True
  3. 3.True or false: a laptop uses very little power. (a) True (b) False
  4. 4.🤖 Does a plain wall switch usually have a microcontroller inside? (a) Yes (b) No
  5. 5.🤖 How does a new program get onto a microcontroller board? (a) drawn with a pen (b) typed on the chip (c) sent by sound (d) uploaded over USB
  6. 6.True or false: a laptop has a built-in keyboard. (a) False (b) True
  7. 7.Which job is done by the USB port? (a) connect sensors and LEDs (b) runs the program (c) keeps the voltage steady (d) brings power and code
  8. 8.Which of these usually has a microcontroller inside? (a) a bicycle bell (b) a hand pump (c) a microwave oven (d) a plain wall switch
  9. 9.🤖 Does a hand pump usually have a microcontroller inside? (a) No (b) Yes
  10. 10.🤖 Microcontroller or laptop: which one uses very little power? (a) microcontroller (b) laptop
  11. 11.Which job is done by the power LED? (a) brings power and code (b) runs the program (c) keeps the voltage steady (d) shows the board is on
  12. 12.True or false: a plain wall switch has no microcontroller inside. (a) True (b) False
  13. 13.True or false: a laptop has no screen of its own. (a) True (b) False
  14. 14.True or false: a washing machine has no microcontroller inside. (a) False (b) True
  15. 15.Which of these has no microcontroller inside? (a) a smart watch (b) a bicycle bell (c) a washing machine (d) a microwave oven
  16. 16.True or false: a microcontroller needs much more power. (a) True (b) False
  17. 17.🧭 Which part of a microcontroller board shows the board is on? (a) the power LED (b) the main chip (c) the voltage regulator (d) the pins
  18. 18.Which of these has no microcontroller inside? (a) a toy robot (b) a TV remote (c) a microwave oven (d) a plain wall switch
  19. 19.Which job is done by the voltage regulator? (a) brings power and code (b) runs the program (c) keeps the voltage steady (d) shows the board is on
  20. 20.🤖 Microcontroller or laptop: which one has a built-in keyboard? (a) microcontroller (b) laptop
  21. 21.Which of these usually has a microcontroller inside? (a) a hand pump (b) a plain wall switch (c) a wind-up toy (d) a smart watch
  22. 22.🤖 Microcontroller or laptop: which one runs many apps at once? (a) microcontroller (b) laptop
  23. 23.Which of these usually has a microcontroller inside? (a) a TV remote (b) a bicycle bell (c) a candle (d) a plain wall switch
  24. 24.True or false: a laptop runs one small program. (a) True (b) False
  25. 25.True or false: a smart watch usually has a microcontroller inside. (a) False (b) True
  26. 26.🤖 What is a microcontroller? (a) a kind of bulb (b) a type of battery (c) a big desktop computer (d) a computer on one chip
  27. 27.Which of these has no microcontroller inside? (a) a candle (b) a digital thermometer (c) a digital alarm clock (d) a toy robot
  28. 28.Which of these has no microcontroller inside? (a) a washing machine (b) a digital thermometer (c) a wind-up toy (d) a toy robot
  29. 29.True or false: a microwave oven has no microcontroller inside. (a) False (b) True
  30. 30.🤖 Does a spinning top usually have a microcontroller inside? (a) No (b) Yes
  31. 31.🤖 Microcontroller or laptop: which one runs one small program? (a) microcontroller (b) laptop
  32. 32.🧭 Which part of a microcontroller board connect sensors and LEDs? (a) the main chip (b) the pins (c) the reset button (d) the voltage regulator
  33. 33.🧭 Which part of a microcontroller board keeps the voltage steady? (a) the reset button (b) the pins (c) the USB port (d) the voltage regulator
  34. 34.🧭 Which part of a microcontroller board restarts the program? (a) the main chip (b) the reset button (c) the USB port (d) the power LED
  35. 35.🤖 Which is a safe power source for a beginner microcontroller board? (a) a wall socket directly (b) USB or a 9 V battery (c) a 230 V cable (d) bare mains wires
  36. 36.True or false: a TV remote has no microcontroller inside. (a) False (b) True
  37. 37.True or false: a microcontroller has a built-in keyboard. (a) True (b) False
  38. 38.🧭 Which part of a microcontroller board runs the program? (a) the main chip (b) the reset button (c) the USB port (d) the power LED
  39. 39.🤖 Does a wind-up toy usually have a microcontroller inside? (a) No (b) Yes
  40. 40.Which job is done by the reset button? (a) restarts the program (b) brings power and code (c) runs the program (d) shows the board is on

Answer key

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

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