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Electronics Worksheet: What Is a Microcontroller

Electronics lesson 21: What is a microcontroller? · Set 740 · 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 spinning top has no microcontroller inside. (a) False (b) True
  2. 2.Which of these usually has a microcontroller inside? (a) a bicycle bell (b) a digital thermometer (c) a plain wall switch (d) a candle
  3. 3.🤖 Microcontroller or laptop: which one runs many apps at once? (a) microcontroller (b) laptop
  4. 4.🤖 When the main loop of a microcontroller program ends, what happens? (a) the board breaks (b) it stops forever (c) it deletes itself (d) it starts again
  5. 5.Which of these usually has a microcontroller inside? (a) a spinning top (b) a plain wall switch (c) a bicycle bell (d) a smart watch
  6. 6.Which job is done by the voltage regulator? (a) keeps the voltage steady (b) runs the program (c) brings power and code (d) restarts the program
  7. 7.Which of these has no microcontroller inside? (a) a washing machine (b) a bicycle bell (c) a digital thermometer (d) a toy robot
  8. 8.🧭 Which part of a microcontroller board keeps the voltage steady? (a) the reset button (b) the pins (c) the power LED (d) the voltage regulator
  9. 9.Which of these has no microcontroller inside? (a) a washing machine (b) a TV remote (c) a hand pump (d) a microwave oven
  10. 10.True or false: a microcontroller has a built-in keyboard. (a) False (b) True
  11. 11.Which of these has no microcontroller inside? (a) a plain wall switch (b) a digital alarm clock (c) a microwave oven (d) a washing machine
  12. 12.Which job is done by the pins? (a) connect sensors and LEDs (b) runs the program (c) brings power and code (d) shows the board is on
  13. 13.🤖 How does a new program get onto a microcontroller board? (a) drawn with a pen (b) typed on the chip (c) sent by sound (d) uploaded over USB
  14. 14.🤖 Microcontroller or laptop: which one needs much more power? (a) laptop (b) microcontroller
  15. 15.🤖 Microcontroller or laptop: which one uses very little power? (a) microcontroller (b) laptop
  16. 16.🤖 Microcontroller or laptop: which one has a built-in keyboard? (a) laptop (b) microcontroller
  17. 17.True or false: a microcontroller runs one small program. (a) True (b) False
  18. 18.Which job is done by the USB port? (a) runs the program (b) brings power and code (c) keeps the voltage steady (d) connect sensors and LEDs
  19. 19.True or false: a laptop runs one small program. (a) False (b) True
  20. 20.Which job is done by the power LED? (a) connect sensors and LEDs (b) brings power and code (c) runs the program (d) shows the board is on
  21. 21.🤖 Does a TV remote usually have a microcontroller inside? (a) No (b) Yes
  22. 22.True or false: a laptop has a built-in keyboard. (a) True (b) False
  23. 23.🤖 What is a microcontroller? (a) a big desktop computer (b) a kind of bulb (c) a computer on one chip (d) a type of battery
  24. 24.🧭 Which part of a microcontroller board restarts the program? (a) the voltage regulator (b) the USB port (c) the power LED (d) the reset button
  25. 25.True or false: a microcontroller needs much more power. (a) True (b) False
  26. 26.True or false: a washing machine has no microcontroller inside. (a) False (b) True
  27. 27.Which of these has no microcontroller inside? (a) a digital alarm clock (b) a microwave oven (c) a smart watch (d) a candle
  28. 28.Which job is done by the reset button? (a) connect sensors and LEDs (b) restarts the program (c) keeps the voltage steady (d) brings power and code
  29. 29.🤖 Microcontroller or laptop: which one runs one small program? (a) microcontroller (b) laptop
  30. 30.🧭 Which part of a microcontroller board shows the board is on? (a) the USB port (b) the pins (c) the voltage regulator (d) the power LED
  31. 31.True or false: a smart watch usually has a microcontroller inside. (a) False (b) True
  32. 32.True or false: a wind-up toy usually has a microcontroller inside. (a) False (b) True
  33. 33.True or false: a microcontroller has no screen of its own. (a) False (b) True
  34. 34.Which of these usually has a microcontroller inside? (a) a hand pump (b) a wind-up toy (c) a spinning top (d) a washing machine
  35. 35.True or false: a plain wall switch usually has a microcontroller inside. (a) True (b) False
  36. 36.True or false: a laptop runs many apps at once. (a) True (b) False
  37. 37.🤖 Does a smart watch usually have a microcontroller inside? (a) Yes (b) No
  38. 38.🤖 Does a hand pump usually have a microcontroller inside? (a) Yes (b) No
  39. 39.🤖 Does a wind-up toy usually have a microcontroller inside? (a) Yes (b) No
  40. 40.Which of these has no microcontroller inside? (a) a spinning top (b) a digital alarm clock (c) a microwave oven (d) a TV remote

Answer key

  1. True
  2. a digital thermometer
  3. laptop
  4. it starts again
  5. a smart watch
  6. keeps the voltage steady
  7. a bicycle bell
  8. the voltage regulator
  9. a hand pump
  10. False
  11. a plain wall switch
  12. connect sensors and LEDs
  13. uploaded over USB
  14. laptop
  15. microcontroller
  16. laptop
  17. True
  18. brings power and code
  19. False
  20. shows the board is on
  21. Yes
  22. True
  23. a computer on one chip
  24. the reset button
  25. False
  26. False
  27. a candle
  28. restarts the program
  29. microcontroller
  30. the power LED
  31. True
  32. False
  33. True
  34. a washing machine
  35. False
  36. True
  37. Yes
  38. No
  39. No
  40. a spinning top

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