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Electronics Worksheet: What Is a Microcontroller

Electronics lesson 21: What is a microcontroller? · Set 218 · 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 has no microcontroller inside. (a) False (b) True
  2. 2.🧭 Which part of a microcontroller board connect sensors and LEDs? (a) the voltage regulator (b) the power LED (c) the pins (d) the reset button
  3. 3.🤖 Does a microwave oven usually have a microcontroller inside? (a) No (b) Yes
  4. 4.True or false: a laptop has no screen of its own. (a) True (b) False
  5. 5.Which job is done by the USB port? (a) connect sensors and LEDs (b) brings power and code (c) shows the board is on (d) keeps the voltage steady
  6. 6.True or false: a microcontroller needs much more power. (a) True (b) False
  7. 7.🧭 Which part of a microcontroller board brings power and code? (a) the USB port (b) the voltage regulator (c) the power LED (d) the main chip
  8. 8.Which of these has no microcontroller inside? (a) a hand pump (b) a microwave oven (c) a washing machine (d) a TV remote
  9. 9.Which job is done by the voltage regulator? (a) connect sensors and LEDs (b) shows the board is on (c) brings power and code (d) keeps the voltage steady
  10. 10.🧭 Which part of a microcontroller board runs the program? (a) the main chip (b) the power LED (c) the USB port (d) the voltage regulator
  11. 11.Which of these has no microcontroller inside? (a) a smart watch (b) a washing machine (c) a plain wall switch (d) a microwave oven
  12. 12.True or false: a laptop has a built-in keyboard. (a) True (b) False
  13. 13.🤖 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
  14. 14.True or false: a smart watch has no microcontroller inside. (a) False (b) True
  15. 15.🧭 Which part of a microcontroller board keeps the voltage steady? (a) the power LED (b) the main chip (c) the voltage regulator (d) the reset button
  16. 16.True or false: a microcontroller has a built-in keyboard. (a) True (b) False
  17. 17.True or false: a laptop needs much more power. (a) True (b) False
  18. 18.True or false: a microcontroller has no screen of its own. (a) False (b) True
  19. 19.True or false: a digital alarm clock usually has a microcontroller inside. (a) False (b) True
  20. 20.🤖 Does a toy robot usually have a microcontroller inside? (a) Yes (b) No
  21. 21.True or false: a digital alarm clock has no microcontroller inside. (a) False (b) True
  22. 22.True or false: a bicycle bell usually has a microcontroller inside. (a) False (b) True
  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 job is done by the power LED? (a) connect sensors and LEDs (b) runs the program (c) shows the board is on (d) keeps the voltage steady
  25. 25.🤖 Does a smart watch usually have a microcontroller inside? (a) Yes (b) No
  26. 26.Which of these usually has a microcontroller inside? (a) a wind-up toy (b) a plain wall switch (c) a smart watch (d) a spinning top
  27. 27.True or false: a plain wall switch usually has a microcontroller inside. (a) True (b) False
  28. 28.Which job is done by the pins? (a) restarts the program (b) shows the board is on (c) keeps the voltage steady (d) connect sensors and LEDs
  29. 29.True or false: a wind-up toy has no microcontroller inside. (a) True (b) False
  30. 30.Which of these usually has a microcontroller inside? (a) a wind-up toy (b) a bicycle bell (c) a plain wall switch (d) a microwave oven
  31. 31.🤖 Microcontroller or laptop: which one has a built-in keyboard? (a) microcontroller (b) laptop
  32. 32.🧭 Which part of a microcontroller board shows the board is on? (a) the power LED (b) the voltage regulator (c) the USB port (d) the pins
  33. 33.Which of these has no microcontroller inside? (a) a digital alarm clock (b) a TV remote (c) a microwave oven (d) a candle
  34. 34.Which of these usually has a microcontroller inside? (a) a hand pump (b) a plain wall switch (c) a digital alarm clock (d) a bicycle bell
  35. 35.True or false: a microcontroller runs one small program. (a) False (b) True
  36. 36.Which of these usually has a microcontroller inside? (a) a TV remote (b) a bicycle bell (c) a hand pump (d) a candle
  37. 37.🤖 Microcontroller or laptop: which one runs many apps at once? (a) laptop (b) microcontroller
  38. 38.🤖 Microcontroller or laptop: which one runs one small program? (a) microcontroller (b) laptop
  39. 39.🧭 Which part of a microcontroller board restarts the program? (a) the reset button (b) the USB port (c) the power LED (d) the pins
  40. 40.🤖 Microcontroller or laptop: which one needs much more power? (a) microcontroller (b) laptop

Answer key

  1. True
  2. the pins
  3. Yes
  4. False
  5. brings power and code
  6. False
  7. the USB port
  8. a hand pump
  9. keeps the voltage steady
  10. the main chip
  11. a plain wall switch
  12. True
  13. it starts again
  14. False
  15. the voltage regulator
  16. False
  17. True
  18. True
  19. True
  20. Yes
  21. False
  22. False
  23. a computer on one chip
  24. shows the board is on
  25. Yes
  26. a smart watch
  27. False
  28. connect sensors and LEDs
  29. True
  30. a microwave oven
  31. laptop
  32. the power LED
  33. a candle
  34. a digital alarm clock
  35. True
  36. a TV remote
  37. laptop
  38. microcontroller
  39. the reset button
  40. laptop

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