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Electronics Worksheet: What Is a Microcontroller

Electronics lesson 21: What is a microcontroller? · Set 746 · 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.🤖 Microcontroller or laptop: which one runs many apps at once? (a) laptop (b) microcontroller
  2. 2.Which job is done by the USB port? (a) restarts the program (b) brings power and code (c) runs the program (d) connect sensors and LEDs
  3. 3.🤖 Does a hand pump usually have a microcontroller inside? (a) Yes (b) No
  4. 4.Which job is done by the power LED? (a) shows the board is on (b) brings power and code (c) connect sensors and LEDs (d) keeps the voltage steady
  5. 5.🤖 Does a candle usually have a microcontroller inside? (a) No (b) Yes
  6. 6.Which job is done by the main chip? (a) runs the program (b) shows the board is on (c) restarts the program (d) connect sensors and LEDs
  7. 7.True or false: a spinning top has no microcontroller inside. (a) True (b) False
  8. 8.🤖 Microcontroller or laptop: which one runs one small program? (a) microcontroller (b) laptop
  9. 9.Which job is done by the voltage regulator? (a) shows the board is on (b) connect sensors and LEDs (c) brings power and code (d) keeps the voltage steady
  10. 10.Which job is done by the pins? (a) connect sensors and LEDs (b) shows the board is on (c) restarts the program (d) runs the program
  11. 11.🧭 Which part of a microcontroller board keeps the voltage steady? (a) the power LED (b) the voltage regulator (c) the reset button (d) the USB port
  12. 12.True or false: a wind-up toy usually has a microcontroller inside. (a) False (b) True
  13. 13.Which of these usually has a microcontroller inside? (a) a spinning top (b) a wind-up toy (c) a candle (d) a digital thermometer
  14. 14.🧭 Which part of a microcontroller board runs the program? (a) the USB port (b) the main chip (c) the power LED (d) the pins
  15. 15.Which of these usually has a microcontroller inside? (a) a plain wall switch (b) a spinning top (c) a digital alarm clock (d) a hand pump
  16. 16.Which of these has no microcontroller inside? (a) a washing machine (b) a candle (c) a smart watch (d) a digital alarm clock
  17. 17.Which job is done by the reset button? (a) runs the program (b) shows the board is on (c) restarts the program (d) brings power and code
  18. 18.True or false: a digital thermometer usually has a microcontroller inside. (a) True (b) False
  19. 19.🧭 Which part of a microcontroller board brings power and code? (a) the voltage regulator (b) the pins (c) the power LED (d) the USB port
  20. 20.Which of these has no microcontroller inside? (a) a washing machine (b) a plain wall switch (c) a smart watch (d) a microwave oven
  21. 21.True or false: a microcontroller needs much more power. (a) True (b) False
  22. 22.True or false: a laptop runs one small program. (a) False (b) True
  23. 23.True or false: a microcontroller has a built-in keyboard. (a) True (b) False
  24. 24.🤖 Does a wind-up toy usually have a microcontroller inside? (a) No (b) Yes
  25. 25.True or false: a laptop has no screen of its own. (a) False (b) True
  26. 26.🤖 Microcontroller or laptop: which one has no screen of its own? (a) laptop (b) microcontroller
  27. 27.🤖 Does a toy robot usually have a microcontroller inside? (a) No (b) Yes
  28. 28.True or false: a digital thermometer has no microcontroller inside. (a) False (b) True
  29. 29.🤖 Does a plain wall switch usually have a microcontroller inside? (a) No (b) Yes
  30. 30.Which of these has no microcontroller inside? (a) a digital alarm clock (b) a TV remote (c) a digital thermometer (d) a wind-up toy
  31. 31.🧭 Which part of a microcontroller board restarts the program? (a) the reset button (b) the main chip (c) the voltage regulator (d) the pins
  32. 32.🤖 Microcontroller or laptop: which one uses very little power? (a) laptop (b) microcontroller
  33. 33.🧭 Which part of a microcontroller board connect sensors and LEDs? (a) the pins (b) the voltage regulator (c) the power LED (d) the USB port
  34. 34.🤖 Microcontroller or laptop: which one has a built-in keyboard? (a) microcontroller (b) laptop
  35. 35.🤖 Does a spinning top usually have a microcontroller inside? (a) No (b) Yes
  36. 36.True or false: a laptop runs many apps at once. (a) True (b) False
  37. 37.True or false: a candle has no microcontroller inside. (a) False (b) True
  38. 38.Which of these usually has a microcontroller inside? (a) a candle (b) a smart watch (c) a plain wall switch (d) a wind-up toy
  39. 39.True or false: a hand pump usually has a microcontroller inside. (a) True (b) False
  40. 40.🧭 Which part of a microcontroller board shows the board is on? (a) the USB port (b) the pins (c) the power LED (d) the reset button

Answer key

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

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