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Electronics Worksheet: What Is a Microcontroller

Electronics lesson 21: What is a microcontroller? · Set 178 · 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.🤖 How does a new program get onto a microcontroller board? (a) drawn with a pen (b) sent by sound (c) uploaded over USB (d) typed on the chip
  2. 2.True or false: a microwave oven has no microcontroller inside. (a) True (b) False
  3. 3.🤖 Microcontroller or laptop: which one runs one small program? (a) microcontroller (b) laptop
  4. 4.True or false: a microcontroller needs much more power. (a) False (b) True
  5. 5.🤖 Does a TV remote usually have a microcontroller inside? (a) Yes (b) No
  6. 6.Which job is done by the USB port? (a) brings power and code (b) keeps the voltage steady (c) connect sensors and LEDs (d) shows the board is on
  7. 7.Which of these usually has a microcontroller inside? (a) a TV remote (b) a plain wall switch (c) a spinning top (d) a candle
  8. 8.Which job is done by the reset button? (a) connect sensors and LEDs (b) brings power and code (c) restarts the program (d) keeps the voltage steady
  9. 9.🤖 What is a microcontroller? (a) a kind of bulb (b) a big desktop computer (c) a computer on one chip (d) a type of battery
  10. 10.True or false: a laptop has no screen of its own. (a) False (b) True
  11. 11.🤖 Does a digital thermometer usually have a microcontroller inside? (a) No (b) Yes
  12. 12.🤖 Does a plain wall switch usually have a microcontroller inside? (a) No (b) Yes
  13. 13.Which of these has no microcontroller inside? (a) a bicycle bell (b) a toy robot (c) a smart watch (d) a washing machine
  14. 14.True or false: a smart watch usually has a microcontroller inside. (a) True (b) False
  15. 15.🤖 Microcontroller or laptop: which one runs many apps at once? (a) microcontroller (b) laptop
  16. 16.🤖 Does a microwave oven usually have a microcontroller inside? (a) Yes (b) No
  17. 17.True or false: a microcontroller runs one small program. (a) False (b) True
  18. 18.Which of these usually has a microcontroller inside? (a) a plain wall switch (b) a candle (c) a spinning top (d) a digital alarm clock
  19. 19.True or false: a hand pump has no microcontroller inside. (a) False (b) True
  20. 20.Which job is done by the voltage regulator? (a) shows the board is on (b) connect sensors and LEDs (c) restarts the program (d) keeps the voltage steady
  21. 21.🤖 Microcontroller or laptop: which one uses very little power? (a) microcontroller (b) laptop
  22. 22.Which of these usually has a microcontroller inside? (a) a plain wall switch (b) a smart watch (c) a candle (d) a wind-up toy
  23. 23.Which of these has no microcontroller inside? (a) a candle (b) a digital thermometer (c) a TV remote (d) a microwave oven
  24. 24.🧭 Which part of a microcontroller board keeps the voltage steady? (a) the pins (b) the USB port (c) the voltage regulator (d) the reset button
  25. 25.🤖 Microcontroller or laptop: which one has no screen of its own? (a) microcontroller (b) laptop
  26. 26.Which of these usually has a microcontroller inside? (a) a hand pump (b) a toy robot (c) a spinning top (d) a plain wall switch
  27. 27.🤖 Microcontroller or laptop: which one needs much more power? (a) laptop (b) microcontroller
  28. 28.🤖 Does a bicycle bell usually have a microcontroller inside? (a) No (b) Yes
  29. 29.True or false: a laptop uses very little power. (a) False (b) True
  30. 30.🤖 Does a spinning top usually have a microcontroller inside? (a) No (b) Yes
  31. 31.🧭 Which part of a microcontroller board runs the program? (a) the USB port (b) the voltage regulator (c) the power LED (d) the main chip
  32. 32.True or false: a microcontroller has no screen of its own. (a) False (b) True
  33. 33.Which of these has no microcontroller inside? (a) a hand pump (b) a washing machine (c) a digital thermometer (d) a smart watch
  34. 34.🤖 Does a digital alarm clock usually have a microcontroller inside? (a) Yes (b) No
  35. 35.Which of these has no microcontroller inside? (a) a digital thermometer (b) a washing machine (c) a plain wall switch (d) a microwave oven
  36. 36.True or false: a laptop has a built-in keyboard. (a) False (b) True
  37. 37.Which of these usually has a microcontroller inside? (a) a microwave oven (b) a bicycle bell (c) a candle (d) a wind-up toy
  38. 38.Which of these usually has a microcontroller inside? (a) a washing machine (b) a spinning top (c) a candle (d) a hand pump
  39. 39.True or false: a bicycle bell usually has a microcontroller inside. (a) False (b) True
  40. 40.True or false: a plain wall switch usually has a microcontroller inside. (a) False (b) True

Answer key

  1. uploaded over USB
  2. False
  3. microcontroller
  4. False
  5. Yes
  6. brings power and code
  7. a TV remote
  8. restarts the program
  9. a computer on one chip
  10. False
  11. Yes
  12. No
  13. a bicycle bell
  14. True
  15. laptop
  16. Yes
  17. True
  18. a digital alarm clock
  19. True
  20. keeps the voltage steady
  21. microcontroller
  22. a smart watch
  23. a candle
  24. the voltage regulator
  25. microcontroller
  26. a toy robot
  27. laptop
  28. No
  29. False
  30. No
  31. the main chip
  32. True
  33. a hand pump
  34. Yes
  35. a plain wall switch
  36. True
  37. a microwave oven
  38. a washing machine
  39. False
  40. False

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