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Electronics Worksheet: What Is a Microcontroller

Electronics lesson 21: What is a microcontroller? · Set 360 · 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 toy robot usually have a microcontroller inside? (a) No (b) Yes
  2. 2.🤖 Does a spinning top usually have a microcontroller inside? (a) No (b) Yes
  3. 3.🤖 Does a washing machine usually have a microcontroller inside? (a) No (b) Yes
  4. 4.🧭 Which part of a microcontroller board shows the board is on? (a) the main chip (b) the power LED (c) the pins (d) the USB port
  5. 5.True or false: a digital alarm clock usually has a microcontroller inside. (a) False (b) True
  6. 6.🧭 Which part of a microcontroller board keeps the voltage steady? (a) the voltage regulator (b) the main chip (c) the reset button (d) the USB port
  7. 7.Which job is done by the USB port? (a) shows the board is on (b) connect sensors and LEDs (c) brings power and code (d) keeps the voltage steady
  8. 8.🤖 Microcontroller or laptop: which one uses very little power? (a) microcontroller (b) laptop
  9. 9.Which job is done by the main chip? (a) keeps the voltage steady (b) restarts the program (c) brings power and code (d) runs the program
  10. 10.🤖 Does a microwave oven usually have a microcontroller inside? (a) No (b) Yes
  11. 11.True or false: a wind-up toy usually has a microcontroller inside. (a) False (b) True
  12. 12.Which of these has no microcontroller inside? (a) a wind-up toy (b) a smart watch (c) a toy robot (d) a TV remote
  13. 13.True or false: a hand pump usually has a microcontroller inside. (a) True (b) False
  14. 14.Which of these has no microcontroller inside? (a) a toy robot (b) a microwave oven (c) a plain wall switch (d) a digital thermometer
  15. 15.True or false: a smart watch usually has a microcontroller inside. (a) False (b) True
  16. 16.🤖 Does a digital thermometer usually have a microcontroller inside? (a) No (b) Yes
  17. 17.🤖 Does a candle usually have a microcontroller inside? (a) No (b) Yes
  18. 18.Which of these has no microcontroller inside? (a) a microwave oven (b) a TV remote (c) a smart watch (d) a hand pump
  19. 19.Which of these usually has a microcontroller inside? (a) a spinning top (b) a candle (c) a microwave oven (d) a plain wall switch
  20. 20.True or false: a laptop uses very little power. (a) True (b) False
  21. 21.🤖 What is a microcontroller? (a) a computer on one chip (b) a big desktop computer (c) a kind of bulb (d) a type of battery
  22. 22.True or false: a microcontroller needs much more power. (a) True (b) False
  23. 23.🤖 Does a bicycle bell usually have a microcontroller inside? (a) No (b) Yes
  24. 24.True or false: a candle has no microcontroller inside. (a) False (b) True
  25. 25.True or false: a washing machine usually has a microcontroller inside. (a) False (b) True
  26. 26.🤖 Microcontroller or laptop: which one needs much more power? (a) laptop (b) microcontroller
  27. 27.Which job is done by the power LED? (a) keeps the voltage steady (b) brings power and code (c) restarts the program (d) shows the board is on
  28. 28.🧭 Which part of a microcontroller board brings power and code? (a) the reset button (b) the USB port (c) the voltage regulator (d) the main chip
  29. 29.🤖 Microcontroller or laptop: which one runs one small program? (a) microcontroller (b) laptop
  30. 30.Which of these has no microcontroller inside? (a) a digital alarm clock (b) a washing machine (c) a spinning top (d) a digital thermometer
  31. 31.Which of these usually has a microcontroller inside? (a) a wind-up toy (b) a smart watch (c) a bicycle bell (d) a candle
  32. 32.🤖 When the main loop of a microcontroller program ends, what happens? (a) the board breaks (b) it deletes itself (c) it stops forever (d) it starts again
  33. 33.Which of these usually has a microcontroller inside? (a) a wind-up toy (b) a bicycle bell (c) a digital thermometer (d) a candle
  34. 34.True or false: a laptop runs one small program. (a) False (b) True
  35. 35.🤖 Microcontroller or laptop: which one runs many apps at once? (a) microcontroller (b) laptop
  36. 36.Which job is done by the voltage regulator? (a) shows the board is on (b) runs the program (c) brings power and code (d) keeps the voltage steady
  37. 37.🤖 Does a hand pump usually have a microcontroller inside? (a) Yes (b) No
  38. 38.Which job is done by the reset button? (a) restarts the program (b) keeps the voltage steady (c) shows the board is on (d) runs the program
  39. 39.Which job is done by the pins? (a) connect sensors and LEDs (b) runs the program (c) shows the board is on (d) brings power and code
  40. 40.Which of these usually has a microcontroller inside? (a) a spinning top (b) a hand pump (c) a wind-up toy (d) a digital alarm clock

Answer key

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

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