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Electronics Worksheet: What Is a Microcontroller

Electronics lesson 21: What is a microcontroller? · Set 44 · 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.Which of these has no microcontroller inside? (a) a microwave oven (b) a TV remote (c) a spinning top (d) a toy robot
  2. 2.Which job is done by the USB port? (a) shows the board is on (b) brings power and code (c) keeps the voltage steady (d) restarts the program
  3. 3.Which of these usually has a microcontroller inside? (a) a digital alarm clock (b) a hand pump (c) a bicycle bell (d) a plain wall switch
  4. 4.🧭 Which part of a microcontroller board keeps the voltage steady? (a) the main chip (b) the reset button (c) the voltage regulator (d) the USB port
  5. 5.Which of these has no microcontroller inside? (a) a washing machine (b) a TV remote (c) a hand pump (d) a digital alarm clock
  6. 6.🤖 Microcontroller or laptop: which one has a built-in keyboard? (a) laptop (b) microcontroller
  7. 7.🤖 Microcontroller or laptop: which one runs one small program? (a) laptop (b) microcontroller
  8. 8.True or false: a digital alarm clock usually has a microcontroller inside. (a) True (b) False
  9. 9.🤖 Does a washing machine usually have a microcontroller inside? (a) No (b) Yes
  10. 10.🤖 Does a candle usually have a microcontroller inside? (a) Yes (b) No
  11. 11.🤖 Does a wind-up toy usually have a microcontroller inside? (a) Yes (b) No
  12. 12.True or false: a laptop has a built-in keyboard. (a) False (b) True
  13. 13.True or false: a laptop needs much more power. (a) False (b) True
  14. 14.True or false: a digital thermometer has no microcontroller inside. (a) True (b) False
  15. 15.Which of these usually has a microcontroller inside? (a) a plain wall switch (b) a hand pump (c) a candle (d) a digital thermometer
  16. 16.Which job is done by the power LED? (a) runs the program (b) keeps the voltage steady (c) brings power and code (d) shows the board is on
  17. 17.🧭 Which part of a microcontroller board brings power and code? (a) the USB port (b) the pins (c) the reset button (d) the main chip
  18. 18.Which job is done by the reset button? (a) shows the board is on (b) brings power and code (c) restarts the program (d) connect sensors and LEDs
  19. 19.🧭 Which part of a microcontroller board restarts the program? (a) the voltage regulator (b) the USB port (c) the main chip (d) the reset button
  20. 20.True or false: a laptop runs one small program. (a) True (b) False
  21. 21.True or false: a TV remote has no microcontroller inside. (a) False (b) True
  22. 22.Which of these has no microcontroller inside? (a) a digital alarm clock (b) a digital thermometer (c) a bicycle bell (d) a washing machine
  23. 23.🤖 Does a spinning top usually have a microcontroller inside? (a) Yes (b) No
  24. 24.True or false: a microcontroller uses very little power. (a) False (b) True
  25. 25.True or false: a toy robot has no microcontroller inside. (a) False (b) True
  26. 26.True or false: a spinning top has no microcontroller inside. (a) True (b) False
  27. 27.True or false: a spinning top usually has a microcontroller inside. (a) True (b) False
  28. 28.🤖 Does a microwave oven usually have a microcontroller inside? (a) Yes (b) No
  29. 29.🤖 Microcontroller or laptop: which one needs much more power? (a) laptop (b) microcontroller
  30. 30.Which of these usually has a microcontroller inside? (a) a spinning top (b) a wind-up toy (c) a bicycle bell (d) a microwave oven
  31. 31.Which job is done by the voltage regulator? (a) brings power and code (b) shows the board is on (c) keeps the voltage steady (d) restarts the program
  32. 32.🤖 How does a new program get onto a microcontroller board? (a) drawn with a pen (b) typed on the chip (c) sent by sound (d) uploaded over USB
  33. 33.🤖 Does a plain wall switch usually have a microcontroller inside? (a) Yes (b) No
  34. 34.True or false: a toy robot usually has a microcontroller inside. (a) False (b) True
  35. 35.🤖 Does a digital alarm clock usually have a microcontroller inside? (a) No (b) Yes
  36. 36.🤖 Where does the board keep its program when the power is off? (a) the resistor (b) the USB cable (c) the power LED (d) flash memory
  37. 37.🤖 Does a toy robot usually have a microcontroller inside? (a) Yes (b) No
  38. 38.🤖 Microcontroller or laptop: which one has no screen of its own? (a) microcontroller (b) laptop
  39. 39.True or false: a bicycle bell usually has a microcontroller inside. (a) False (b) True
  40. 40.True or false: a plain wall switch usually has a microcontroller inside. (a) True (b) False

Answer key

  1. a spinning top
  2. brings power and code
  3. a digital alarm clock
  4. the voltage regulator
  5. a hand pump
  6. laptop
  7. microcontroller
  8. True
  9. Yes
  10. No
  11. No
  12. True
  13. True
  14. False
  15. a digital thermometer
  16. shows the board is on
  17. the USB port
  18. restarts the program
  19. the reset button
  20. False
  21. False
  22. a bicycle bell
  23. No
  24. True
  25. False
  26. True
  27. False
  28. Yes
  29. laptop
  30. a microwave oven
  31. keeps the voltage steady
  32. uploaded over USB
  33. No
  34. True
  35. Yes
  36. flash memory
  37. Yes
  38. microcontroller
  39. False
  40. False

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