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Electronics Worksheet: What Is a Microcontroller

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

Answer key

  1. True
  2. a toy robot
  3. the USB port
  4. False
  5. a computer on one chip
  6. connect sensors and LEDs
  7. True
  8. microcontroller
  9. microcontroller
  10. the main chip
  11. False
  12. False
  13. a candle
  14. Yes
  15. False
  16. keeps the voltage steady
  17. uploaded over USB
  18. it starts again
  19. No
  20. True
  21. laptop
  22. runs the program
  23. the reset button
  24. Yes
  25. a washing machine
  26. shows the board is on
  27. No
  28. True
  29. True
  30. True
  31. laptop
  32. No
  33. No
  34. True
  35. Yes
  36. Yes
  37. a hand pump
  38. False
  39. restarts the program
  40. False

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