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Electronics Worksheet: What Is a Microcontroller

Electronics lesson 21: What is a microcontroller? · Set 602 · 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 laptop has a built-in keyboard. (a) True (b) False
  2. 2.Which of these usually has a microcontroller inside? (a) a candle (b) a toy robot (c) a bicycle bell (d) a hand pump
  3. 3.True or false: a laptop runs many apps at once. (a) False (b) True
  4. 4.Which of these usually has a microcontroller inside? (a) a wind-up toy (b) a TV remote (c) a hand pump (d) a spinning top
  5. 5.🤖 Does a wind-up toy usually have a microcontroller inside? (a) Yes (b) No
  6. 6.True or false: a microcontroller uses very little power. (a) False (b) True
  7. 7.🤖 Does a digital thermometer usually have a microcontroller inside? (a) Yes (b) No
  8. 8.Which of these has no microcontroller inside? (a) a digital thermometer (b) a TV remote (c) a bicycle bell (d) a smart watch
  9. 9.True or false: a plain wall switch has no microcontroller inside. (a) True (b) False
  10. 10.Which of these usually has a microcontroller inside? (a) a bicycle bell (b) a spinning top (c) a candle (d) a microwave oven
  11. 11.Which of these has no microcontroller inside? (a) a toy robot (b) a digital thermometer (c) a microwave oven (d) a candle
  12. 12.🤖 Does a washing machine usually have a microcontroller inside? (a) Yes (b) No
  13. 13.🤖 Microcontroller or laptop: which one runs one small program? (a) microcontroller (b) laptop
  14. 14.Which job is done by the pins? (a) restarts the program (b) brings power and code (c) runs the program (d) connect sensors and LEDs
  15. 15.Which of these has no microcontroller inside? (a) a spinning top (b) a smart watch (c) a TV remote (d) a washing machine
  16. 16.🤖 Microcontroller or laptop: which one needs much more power? (a) microcontroller (b) laptop
  17. 17.True or false: a wind-up toy has no microcontroller inside. (a) True (b) False
  18. 18.Which of these usually has a microcontroller inside? (a) a washing machine (b) a hand pump (c) a wind-up toy (d) a plain wall switch
  19. 19.True or false: a spinning top usually has a microcontroller inside. (a) True (b) False
  20. 20.🤖 Microcontroller or laptop: which one has no screen of its own? (a) laptop (b) microcontroller
  21. 21.🤖 Does a hand pump usually have a microcontroller inside? (a) Yes (b) No
  22. 22.🤖 Where does the board keep its program when the power is off? (a) the power LED (b) the USB cable (c) the resistor (d) flash memory
  23. 23.🤖 Microcontroller or laptop: which one has a built-in keyboard? (a) laptop (b) microcontroller
  24. 24.🤖 Microcontroller or laptop: which one uses very little power? (a) laptop (b) microcontroller
  25. 25.True or false: a microcontroller has no screen of its own. (a) False (b) True
  26. 26.True or false: a laptop runs one small program. (a) False (b) True
  27. 27.True or false: a microcontroller runs one small program. (a) True (b) False
  28. 28.Which of these usually has a microcontroller inside? (a) a plain wall switch (b) a smart watch (c) a spinning top (d) a candle
  29. 29.True or false: a laptop uses very little power. (a) True (b) False
  30. 30.True or false: a toy robot usually has a microcontroller inside. (a) True (b) False
  31. 31.True or false: a bicycle bell usually has a microcontroller inside. (a) True (b) False
  32. 32.🤖 Microcontroller or laptop: which one runs many apps at once? (a) microcontroller (b) laptop
  33. 33.🧭 Which part of a microcontroller board runs the program? (a) the main chip (b) the power LED (c) the USB port (d) the pins
  34. 34.Which of these has no microcontroller inside? (a) a TV remote (b) a smart watch (c) a washing machine (d) a hand pump
  35. 35.Which job is done by the voltage regulator? (a) shows the board is on (b) restarts the program (c) keeps the voltage steady (d) brings power and code
  36. 36.🤖 Does a digital alarm clock usually have a microcontroller inside? (a) Yes (b) No
  37. 37.True or false: a microcontroller needs much more power. (a) False (b) True
  38. 38.Which of these has no microcontroller inside? (a) a washing machine (b) a microwave oven (c) a plain wall switch (d) a digital thermometer
  39. 39.🤖 Does a bicycle bell usually have a microcontroller inside? (a) No (b) Yes
  40. 40.Which job is done by the power LED? (a) shows the board is on (b) keeps the voltage steady (c) connect sensors and LEDs (d) restarts the program

Answer key

  1. True
  2. a toy robot
  3. True
  4. a TV remote
  5. No
  6. True
  7. Yes
  8. a bicycle bell
  9. True
  10. a microwave oven
  11. a candle
  12. Yes
  13. microcontroller
  14. connect sensors and LEDs
  15. a spinning top
  16. laptop
  17. True
  18. a washing machine
  19. False
  20. microcontroller
  21. No
  22. flash memory
  23. laptop
  24. microcontroller
  25. True
  26. False
  27. True
  28. a smart watch
  29. False
  30. True
  31. False
  32. laptop
  33. the main chip
  34. a hand pump
  35. keeps the voltage steady
  36. Yes
  37. False
  38. a plain wall switch
  39. No
  40. shows the board is on

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