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Electronics Worksheet: What Is a Microcontroller

Electronics lesson 21: What is a microcontroller? · Set 369 · 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.

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

Answer key

  1. Yes
  2. it starts again
  3. False
  4. False
  5. the power LED
  6. the voltage regulator
  7. shows the board is on
  8. False
  9. Yes
  10. False
  11. the pins
  12. laptop
  13. Yes
  14. a digital alarm clock
  15. Yes
  16. a candle
  17. a digital thermometer
  18. True
  19. a computer on one chip
  20. microcontroller
  21. microcontroller
  22. Yes
  23. the main chip
  24. Yes
  25. the USB port
  26. True
  27. False
  28. a spinning top
  29. restarts the program
  30. No
  31. True
  32. True
  33. False
  34. laptop
  35. keeps the voltage steady
  36. False
  37. a microwave oven
  38. microcontroller
  39. No
  40. True

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