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Electronics Worksheet: What Is a Microcontroller

Electronics lesson 21: What is a microcontroller? · Set 661 · 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 plain wall switch usually has a microcontroller inside. (a) True (b) False
  2. 2.🤖 Does a hand pump usually have a microcontroller inside? (a) Yes (b) No
  3. 3.🤖 When the main loop of a microcontroller program ends, what happens? (a) it deletes itself (b) it stops forever (c) the board breaks (d) it starts again
  4. 4.True or false: a laptop uses very little power. (a) True (b) False
  5. 5.🧭 Which part of a microcontroller board restarts the program? (a) the power LED (b) the voltage regulator (c) the reset button (d) the pins
  6. 6.🤖 Does a smart watch usually have a microcontroller inside? (a) No (b) Yes
  7. 7.🤖 Does a plain wall switch usually have a microcontroller inside? (a) No (b) Yes
  8. 8.Which job is done by the voltage regulator? (a) connect sensors and LEDs (b) restarts the program (c) shows the board is on (d) keeps the voltage steady
  9. 9.True or false: a plain wall switch has no microcontroller inside. (a) False (b) True
  10. 10.🧭 Which part of a microcontroller board brings power and code? (a) the voltage regulator (b) the pins (c) the USB port (d) the main chip
  11. 11.🧭 Which part of a microcontroller board keeps the voltage steady? (a) the voltage regulator (b) the pins (c) the main chip (d) the USB port
  12. 12.🤖 Microcontroller or laptop: which one uses very little power? (a) microcontroller (b) laptop
  13. 13.True or false: a laptop runs one small program. (a) True (b) False
  14. 14.True or false: a microcontroller runs many apps at once. (a) False (b) True
  15. 15.Which job is done by the reset button? (a) runs the program (b) restarts the program (c) brings power and code (d) connect sensors and LEDs
  16. 16.True or false: a laptop needs much more power. (a) True (b) False
  17. 17.🤖 How does a new program get onto a microcontroller board? (a) sent by sound (b) drawn with a pen (c) typed on the chip (d) uploaded over USB
  18. 18.🧭 Which part of a microcontroller board runs the program? (a) the power LED (b) the USB port (c) the main chip (d) the pins
  19. 19.Which job is done by the main chip? (a) restarts the program (b) connect sensors and LEDs (c) keeps the voltage steady (d) runs the program
  20. 20.Which of these has no microcontroller inside? (a) a microwave oven (b) a plain wall switch (c) a digital alarm clock (d) a TV remote
  21. 21.True or false: a laptop has a built-in keyboard. (a) False (b) True
  22. 22.Which of these has no microcontroller inside? (a) a washing machine (b) a microwave oven (c) a smart watch (d) a wind-up toy
  23. 23.Which of these usually has a microcontroller inside? (a) a bicycle bell (b) a smart watch (c) a spinning top (d) a wind-up toy
  24. 24.True or false: a microcontroller has a built-in keyboard. (a) True (b) False
  25. 25.🧭 Which part of a microcontroller board connect sensors and LEDs? (a) the pins (b) the reset button (c) the power LED (d) the USB port
  26. 26.True or false: a wind-up toy usually has a microcontroller inside. (a) True (b) False
  27. 27.🤖 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
  28. 28.Which job is done by the pins? (a) brings power and code (b) connect sensors and LEDs (c) restarts the program (d) shows the board is on
  29. 29.🤖 Microcontroller or laptop: which one needs much more power? (a) laptop (b) microcontroller
  30. 30.🤖 Microcontroller or laptop: which one runs one small program? (a) laptop (b) microcontroller
  31. 31.🤖 Does a digital alarm clock usually have a microcontroller inside? (a) No (b) Yes
  32. 32.Which of these usually has a microcontroller inside? (a) a plain wall switch (b) a microwave oven (c) a candle (d) a hand pump
  33. 33.🤖 Microcontroller or laptop: which one runs many apps at once? (a) laptop (b) microcontroller
  34. 34.Which of these usually has a microcontroller inside? (a) a candle (b) a washing machine (c) a wind-up toy (d) a bicycle bell
  35. 35.True or false: a microcontroller runs one small program. (a) False (b) True
  36. 36.Which of these has no microcontroller inside? (a) a digital alarm clock (b) a washing machine (c) a hand pump (d) a microwave oven
  37. 37.True or false: a spinning top usually has a microcontroller inside. (a) True (b) False
  38. 38.🤖 Does a washing machine usually have a microcontroller inside? (a) Yes (b) No
  39. 39.Which job is done by the power LED? (a) shows the board is on (b) connect sensors and LEDs (c) restarts the program (d) keeps the voltage steady
  40. 40.True or false: a microcontroller needs much more power. (a) False (b) True

Answer key

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

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