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Electronics Worksheet: What Is a Microcontroller

Electronics lesson 21: What is a microcontroller? · Set 269 · 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.True or false: a wind-up toy usually has a microcontroller inside. (a) False (b) True
  2. 2.🤖 Microcontroller or laptop: which one has a built-in keyboard? (a) laptop (b) microcontroller
  3. 3.🧭 Which part of a microcontroller board connect sensors and LEDs? (a) the USB port (b) the reset button (c) the pins (d) the power LED
  4. 4.Which of these usually has a microcontroller inside? (a) a digital alarm clock (b) a spinning top (c) a wind-up toy (d) a hand pump
  5. 5.🤖 Does a toy robot usually have a microcontroller inside? (a) No (b) Yes
  6. 6.True or false: a microwave oven has no microcontroller inside. (a) False (b) True
  7. 7.🧭 Which part of a microcontroller board restarts the program? (a) the USB port (b) the reset button (c) the main chip (d) the power LED
  8. 8.🤖 Does a digital alarm clock usually have a microcontroller inside? (a) No (b) Yes
  9. 9.Which of these has no microcontroller inside? (a) a TV remote (b) a microwave oven (c) a digital alarm clock (d) a plain wall switch
  10. 10.True or false: a microcontroller needs much more power. (a) False (b) True
  11. 11.True or false: a TV remote usually has a microcontroller inside. (a) True (b) False
  12. 12.True or false: a laptop uses very little power. (a) False (b) True
  13. 13.True or false: a bicycle bell usually has a microcontroller inside. (a) True (b) False
  14. 14.True or false: a digital thermometer has no microcontroller inside. (a) True (b) False
  15. 15.Which of these has no microcontroller inside? (a) a microwave oven (b) a bicycle bell (c) a washing machine (d) a TV remote
  16. 16.🤖 What is a microcontroller? (a) a type of battery (b) a big desktop computer (c) a kind of bulb (d) a computer on one chip
  17. 17.🤖 How does a new program get onto a microcontroller board? (a) typed on the chip (b) drawn with a pen (c) sent by sound (d) uploaded over USB
  18. 18.🤖 Microcontroller or laptop: which one needs much more power? (a) laptop (b) microcontroller
  19. 19.🤖 Does a candle usually have a microcontroller inside? (a) No (b) Yes
  20. 20.True or false: a laptop runs one small program. (a) True (b) False
  21. 21.🤖 Does a bicycle bell usually have a microcontroller inside? (a) No (b) Yes
  22. 22.Which job is done by the USB port? (a) runs the program (b) brings power and code (c) keeps the voltage steady (d) restarts the program
  23. 23.True or false: a laptop has no screen of its own. (a) False (b) True
  24. 24.True or false: a microcontroller uses very little power. (a) False (b) True
  25. 25.True or false: a candle usually has a microcontroller inside. (a) True (b) False
  26. 26.🤖 Microcontroller or laptop: which one uses very little power? (a) microcontroller (b) laptop
  27. 27.True or false: a laptop needs much more power. (a) True (b) False
  28. 28.Which job is done by the power LED? (a) connect sensors and LEDs (b) restarts the program (c) shows the board is on (d) runs the program
  29. 29.🤖 Does a microwave oven usually have a microcontroller inside? (a) No (b) Yes
  30. 30.🤖 Does a digital thermometer usually have a microcontroller inside? (a) Yes (b) No
  31. 31.Which of these has no microcontroller inside? (a) a digital thermometer (b) a washing machine (c) a spinning top (d) a microwave oven
  32. 32.Which of these usually has a microcontroller inside? (a) a washing machine (b) a plain wall switch (c) a bicycle bell (d) a spinning top
  33. 33.Which job is done by the voltage regulator? (a) keeps the voltage steady (b) runs the program (c) restarts the program (d) brings power and code
  34. 34.🤖 Does a washing machine usually have a microcontroller inside? (a) Yes (b) No
  35. 35.🤖 Does a spinning top usually have a microcontroller inside? (a) Yes (b) No
  36. 36.🧭 Which part of a microcontroller board brings power and code? (a) the voltage regulator (b) the pins (c) the reset button (d) the USB port
  37. 37.True or false: a microcontroller runs one small program. (a) True (b) False
  38. 38.True or false: a toy robot usually has a microcontroller inside. (a) True (b) False
  39. 39.Which of these has no microcontroller inside? (a) a wind-up toy (b) a digital alarm clock (c) a TV remote (d) a washing machine
  40. 40.True or false: a microcontroller has no screen of its own. (a) True (b) False

Answer key

  1. False
  2. laptop
  3. the pins
  4. a digital alarm clock
  5. Yes
  6. False
  7. the reset button
  8. Yes
  9. a plain wall switch
  10. False
  11. True
  12. False
  13. False
  14. False
  15. a bicycle bell
  16. a computer on one chip
  17. uploaded over USB
  18. laptop
  19. No
  20. False
  21. No
  22. brings power and code
  23. False
  24. True
  25. False
  26. microcontroller
  27. True
  28. shows the board is on
  29. Yes
  30. Yes
  31. a spinning top
  32. a washing machine
  33. keeps the voltage steady
  34. Yes
  35. No
  36. the USB port
  37. True
  38. True
  39. a wind-up toy
  40. True

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