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Electronics Worksheet: What Is a Microcontroller

Electronics lesson 21: What is a microcontroller? · Set 617 · 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.True or false: a candle usually has a microcontroller inside. (a) True (b) False
  2. 2.Which job is done by the main chip? (a) runs the program (b) keeps the voltage steady (c) restarts the program (d) connect sensors and LEDs
  3. 3.True or false: a digital alarm clock has no microcontroller inside. (a) False (b) True
  4. 4.True or false: a wind-up toy usually has a microcontroller inside. (a) True (b) False
  5. 5.True or false: a digital alarm clock usually has a microcontroller inside. (a) False (b) True
  6. 6.🤖 Microcontroller or laptop: which one runs one small program? (a) microcontroller (b) laptop
  7. 7.Which job is done by the power LED? (a) restarts the program (b) connect sensors and LEDs (c) shows the board is on (d) brings power and code
  8. 8.True or false: a bicycle bell has no microcontroller inside. (a) True (b) False
  9. 9.True or false: a wind-up toy has no microcontroller inside. (a) False (b) True
  10. 10.True or false: a candle has no microcontroller inside. (a) False (b) True
  11. 11.🤖 Does a hand pump usually have a microcontroller inside? (a) Yes (b) No
  12. 12.True or false: a microcontroller has no screen of its own. (a) True (b) False
  13. 13.True or false: a laptop runs one small program. (a) False (b) True
  14. 14.Which job is done by the USB port? (a) restarts the program (b) brings power and code (c) runs the program (d) shows the board is on
  15. 15.True or false: a microcontroller has a built-in keyboard. (a) True (b) False
  16. 16.🤖 Does a wind-up toy usually have a microcontroller inside? (a) No (b) Yes
  17. 17.True or false: a hand pump has no microcontroller inside. (a) False (b) True
  18. 18.🤖 Does a washing machine usually have a microcontroller inside? (a) No (b) Yes
  19. 19.🤖 Microcontroller or laptop: which one runs many apps at once? (a) laptop (b) microcontroller
  20. 20.🤖 Does a spinning top usually have a microcontroller inside? (a) No (b) Yes
  21. 21.True or false: a microwave oven usually has a microcontroller inside. (a) True (b) False
  22. 22.Which of these has no microcontroller inside? (a) a wind-up toy (b) a digital alarm clock (c) a washing machine (d) a microwave oven
  23. 23.🧭 Which part of a microcontroller board brings power and code? (a) the pins (b) the reset button (c) the voltage regulator (d) the USB port
  24. 24.Which job is done by the reset button? (a) keeps the voltage steady (b) shows the board is on (c) brings power and code (d) restarts the program
  25. 25.Which of these usually has a microcontroller inside? (a) a washing machine (b) a plain wall switch (c) a spinning top (d) a hand pump
  26. 26.🤖 Where does the board keep its program when the power is off? (a) the resistor (b) flash memory (c) the power LED (d) the USB cable
  27. 27.True or false: a TV remote has no microcontroller inside. (a) False (b) True
  28. 28.Which of these usually has a microcontroller inside? (a) a spinning top (b) a candle (c) a digital thermometer (d) a plain wall switch
  29. 29.True or false: a microcontroller runs one small program. (a) True (b) False
  30. 30.🤖 Does a smart watch usually have a microcontroller inside? (a) Yes (b) No
  31. 31.True or false: a spinning top usually has a microcontroller inside. (a) True (b) False
  32. 32.True or false: a laptop needs much more power. (a) True (b) False
  33. 33.🤖 Microcontroller or laptop: which one uses very little power? (a) laptop (b) microcontroller
  34. 34.Which of these has no microcontroller inside? (a) a bicycle bell (b) a smart watch (c) a washing machine (d) a TV remote
  35. 35.🤖 Does a bicycle bell usually have a microcontroller inside? (a) Yes (b) No
  36. 36.🤖 Does a microwave oven usually have a microcontroller inside? (a) No (b) Yes
  37. 37.True or false: a microcontroller needs much more power. (a) True (b) False
  38. 38.True or false: a plain wall switch has no microcontroller inside. (a) True (b) False
  39. 39.🧭 Which part of a microcontroller board runs the program? (a) the main chip (b) the reset button (c) the USB port (d) the pins
  40. 40.True or false: a laptop runs many apps at once. (a) False (b) True

Answer key

  1. False
  2. runs the program
  3. False
  4. False
  5. True
  6. microcontroller
  7. shows the board is on
  8. True
  9. True
  10. True
  11. No
  12. True
  13. False
  14. brings power and code
  15. False
  16. No
  17. True
  18. Yes
  19. laptop
  20. No
  21. True
  22. a wind-up toy
  23. the USB port
  24. restarts the program
  25. a washing machine
  26. flash memory
  27. False
  28. a digital thermometer
  29. True
  30. Yes
  31. False
  32. True
  33. microcontroller
  34. a bicycle bell
  35. No
  36. Yes
  37. False
  38. True
  39. the main chip
  40. True

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