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Electronics Worksheet: What Is a Microcontroller

Electronics lesson 21: What is a microcontroller? · Set 724 · 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.Which of these has no microcontroller inside? (a) a washing machine (b) a smart watch (c) a microwave oven (d) a plain wall switch
  2. 2.True or false: a hand pump has no microcontroller inside. (a) True (b) False
  3. 3.Which of these usually has a microcontroller inside? (a) a hand pump (b) a candle (c) a wind-up toy (d) a washing machine
  4. 4.🤖 Does a plain wall switch usually have a microcontroller inside? (a) No (b) Yes
  5. 5.Which of these usually has a microcontroller inside? (a) a wind-up toy (b) a TV remote (c) a hand pump (d) a candle
  6. 6.Which of these usually has a microcontroller inside? (a) a digital alarm clock (b) a candle (c) a hand pump (d) a spinning top
  7. 7.🤖 Microcontroller or laptop: which one needs much more power? (a) microcontroller (b) laptop
  8. 8.🧭 Which part of a microcontroller board keeps the voltage steady? (a) the USB port (b) the reset button (c) the pins (d) the voltage regulator
  9. 9.Which job is done by the voltage regulator? (a) restarts the program (b) shows the board is on (c) runs the program (d) keeps the voltage steady
  10. 10.🤖 Does a microwave oven usually have a microcontroller inside? (a) Yes (b) No
  11. 11.🧭 Which part of a microcontroller board connect sensors and LEDs? (a) the pins (b) the USB port (c) the voltage regulator (d) the reset button
  12. 12.🤖 Microcontroller or laptop: which one has a built-in keyboard? (a) laptop (b) microcontroller
  13. 13.Which of these has no microcontroller inside? (a) a spinning top (b) a smart watch (c) a digital alarm clock (d) a toy robot
  14. 14.True or false: a microcontroller uses very little power. (a) True (b) False
  15. 15.True or false: a microwave oven usually has a microcontroller inside. (a) True (b) False
  16. 16.🤖 Does a hand pump usually have a microcontroller inside? (a) Yes (b) No
  17. 17.True or false: a laptop uses very little power. (a) True (b) False
  18. 18.🧭 Which part of a microcontroller board shows the board is on? (a) the main chip (b) the USB port (c) the reset button (d) the power LED
  19. 19.True or false: a laptop has a built-in keyboard. (a) False (b) True
  20. 20.🤖 How does a new program get onto a microcontroller board? (a) typed on the chip (b) sent by sound (c) drawn with a pen (d) uploaded over USB
  21. 21.Which of these has no microcontroller inside? (a) a microwave oven (b) a toy robot (c) a digital alarm clock (d) a candle
  22. 22.🤖 Microcontroller or laptop: which one runs one small program? (a) laptop (b) microcontroller
  23. 23.🤖 Microcontroller or laptop: which one has no screen of its own? (a) laptop (b) microcontroller
  24. 24.Which of these usually has a microcontroller inside? (a) a plain wall switch (b) a hand pump (c) a microwave oven (d) a bicycle bell
  25. 25.True or false: a TV remote has no microcontroller inside. (a) True (b) False
  26. 26.True or false: a microcontroller has a built-in keyboard. (a) True (b) False
  27. 27.Which job is done by the reset button? (a) keeps the voltage steady (b) brings power and code (c) restarts the program (d) shows the board is on
  28. 28.True or false: a bicycle bell has no microcontroller inside. (a) True (b) False
  29. 29.🤖 What is a microcontroller? (a) a computer on one chip (b) a big desktop computer (c) a type of battery (d) a kind of bulb
  30. 30.🧭 Which part of a microcontroller board brings power and code? (a) the main chip (b) the reset button (c) the USB port (d) the power LED
  31. 31.Which of these usually has a microcontroller inside? (a) a hand pump (b) a candle (c) a spinning top (d) a toy robot
  32. 32.True or false: a smart watch has no microcontroller inside. (a) True (b) False
  33. 33.True or false: a laptop has no screen of its own. (a) False (b) True
  34. 34.True or false: a microcontroller runs one small program. (a) False (b) True
  35. 35.True or false: a microcontroller runs many apps at once. (a) True (b) False
  36. 36.🤖 When the main loop of a microcontroller program ends, what happens? (a) the board breaks (b) it starts again (c) it stops forever (d) it deletes itself
  37. 37.🤖 Does a toy robot usually have a microcontroller inside? (a) No (b) Yes
  38. 38.Which job is done by the USB port? (a) brings power and code (b) restarts the program (c) connect sensors and LEDs (d) runs the program
  39. 39.Which of these usually has a microcontroller inside? (a) a plain wall switch (b) a digital thermometer (c) a candle (d) a hand pump
  40. 40.True or false: a washing machine usually has a microcontroller inside. (a) False (b) True

Answer key

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

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