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Electronics Worksheet: What Is a Microcontroller

Electronics lesson 21: What is a microcontroller? · Set 668 · 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.🤖 Does a smart watch usually have a microcontroller inside? (a) Yes (b) No
  2. 2.🤖 Does a TV remote usually have a microcontroller inside? (a) No (b) Yes
  3. 3.🧭 Which part of a microcontroller board brings power and code? (a) the USB port (b) the voltage regulator (c) the pins (d) the power LED
  4. 4.🤖 Microcontroller or laptop: which one has a built-in keyboard? (a) microcontroller (b) laptop
  5. 5.Which job is done by the USB port? (a) connect sensors and LEDs (b) runs the program (c) brings power and code (d) shows the board is on
  6. 6.🧭 Which part of a microcontroller board shows the board is on? (a) the reset button (b) the power LED (c) the main chip (d) the voltage regulator
  7. 7.🤖 Does a spinning top usually have a microcontroller inside? (a) Yes (b) No
  8. 8.🤖 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
  9. 9.🤖 Does a digital alarm clock usually have a microcontroller inside? (a) No (b) Yes
  10. 10.Which of these usually has a microcontroller inside? (a) a hand pump (b) a wind-up toy (c) a bicycle bell (d) a washing machine
  11. 11.True or false: a toy robot has no microcontroller inside. (a) False (b) True
  12. 12.🧭 Which part of a microcontroller board keeps the voltage steady? (a) the main chip (b) the voltage regulator (c) the USB port (d) the pins
  13. 13.🧭 Which part of a microcontroller board runs the program? (a) the USB port (b) the pins (c) the main chip (d) the reset button
  14. 14.🤖 How does a new program get onto a microcontroller board? (a) uploaded over USB (b) sent by sound (c) drawn with a pen (d) typed on the chip
  15. 15.🤖 Does a microwave oven usually have a microcontroller inside? (a) No (b) Yes
  16. 16.True or false: a wind-up toy has no microcontroller inside. (a) False (b) True
  17. 17.True or false: a microwave oven usually has a microcontroller inside. (a) True (b) False
  18. 18.Which of these usually has a microcontroller inside? (a) a bicycle bell (b) a candle (c) a plain wall switch (d) a TV remote
  19. 19.True or false: a TV remote usually has a microcontroller inside. (a) True (b) False
  20. 20.Which of these usually has a microcontroller inside? (a) a hand pump (b) a microwave oven (c) a plain wall switch (d) a spinning top
  21. 21.True or false: a plain wall switch has no microcontroller inside. (a) True (b) False
  22. 22.Which job is done by the reset button? (a) runs the program (b) restarts the program (c) keeps the voltage steady (d) brings power and code
  23. 23.🤖 Microcontroller or laptop: which one has no screen of its own? (a) microcontroller (b) laptop
  24. 24.Which of these has no microcontroller inside? (a) a TV remote (b) a digital alarm clock (c) a plain wall switch (d) a washing machine
  25. 25.Which of these has no microcontroller inside? (a) a wind-up toy (b) a toy robot (c) a microwave oven (d) a TV remote
  26. 26.Which job is done by the voltage regulator? (a) keeps the voltage steady (b) shows the board is on (c) runs the program (d) brings power and code
  27. 27.Which of these has no microcontroller inside? (a) a candle (b) a TV remote (c) a digital alarm clock (d) a digital thermometer
  28. 28.🧭 Which part of a microcontroller board restarts the program? (a) the pins (b) the voltage regulator (c) the reset button (d) the main chip
  29. 29.True or false: a laptop needs much more power. (a) True (b) False
  30. 30.🤖 Does a hand pump usually have a microcontroller inside? (a) No (b) Yes
  31. 31.True or false: a microcontroller runs one small program. (a) False (b) True
  32. 32.🤖 Does a toy robot usually have a microcontroller inside? (a) Yes (b) No
  33. 33.Which of these has no microcontroller inside? (a) a toy robot (b) a spinning top (c) a washing machine (d) a smart watch
  34. 34.True or false: a toy robot usually has a microcontroller inside. (a) False (b) True
  35. 35.🤖 Microcontroller or laptop: which one needs much more power? (a) laptop (b) microcontroller
  36. 36.True or false: a laptop uses very little power. (a) False (b) True
  37. 37.True or false: a digital alarm clock has no microcontroller inside. (a) False (b) True
  38. 38.Which job is done by the power LED? (a) shows the board is on (b) restarts the program (c) keeps the voltage steady (d) brings power and code
  39. 39.True or false: a digital thermometer has no microcontroller inside. (a) True (b) False
  40. 40.True or false: a microcontroller needs much more power. (a) False (b) True

Answer key

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

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