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Electronics Worksheet: What Is a Microcontroller

Electronics lesson 21: What is a microcontroller? · Set 501 · 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.🤖 How does a new program get onto a microcontroller board? (a) drawn with a pen (b) sent by sound (c) typed on the chip (d) uploaded over USB
  2. 2.🤖 Does a bicycle bell usually have a microcontroller inside? (a) No (b) Yes
  3. 3.Which of these usually has a microcontroller inside? (a) a wind-up toy (b) a spinning top (c) a bicycle bell (d) a toy robot
  4. 4.🧭 Which part of a microcontroller board runs the program? (a) the reset button (b) the pins (c) the USB port (d) the main chip
  5. 5.Which job is done by the pins? (a) connect sensors and LEDs (b) restarts the program (c) keeps the voltage steady (d) brings power and code
  6. 6.🤖 Does a plain wall switch usually have a microcontroller inside? (a) No (b) Yes
  7. 7.🤖 Microcontroller or laptop: which one has a built-in keyboard? (a) microcontroller (b) laptop
  8. 8.True or false: a bicycle bell has no microcontroller inside. (a) True (b) False
  9. 9.🤖 Microcontroller or laptop: which one has no screen of its own? (a) laptop (b) microcontroller
  10. 10.🧭 Which part of a microcontroller board brings power and code? (a) the voltage regulator (b) the reset button (c) the USB port (d) the power LED
  11. 11.🧭 Which part of a microcontroller board connect sensors and LEDs? (a) the main chip (b) the voltage regulator (c) the pins (d) the reset button
  12. 12.🤖 Does a smart watch usually have a microcontroller inside? (a) No (b) Yes
  13. 13.Which of these has no microcontroller inside? (a) a hand pump (b) a digital alarm clock (c) a microwave oven (d) a TV remote
  14. 14.Which of these has no microcontroller inside? (a) a microwave oven (b) a smart watch (c) a digital thermometer (d) a wind-up toy
  15. 15.True or false: a laptop runs one small program. (a) False (b) True
  16. 16.🤖 Does a digital thermometer usually have a microcontroller inside? (a) Yes (b) No
  17. 17.Which of these usually has a microcontroller inside? (a) a candle (b) a wind-up toy (c) a bicycle bell (d) a smart watch
  18. 18.🤖 Microcontroller or laptop: which one runs many apps at once? (a) microcontroller (b) laptop
  19. 19.Which of these usually has a microcontroller inside? (a) a wind-up toy (b) a candle (c) a bicycle bell (d) a microwave oven
  20. 20.🤖 Microcontroller or laptop: which one runs one small program? (a) laptop (b) microcontroller
  21. 21.🤖 Microcontroller or laptop: which one uses very little power? (a) laptop (b) microcontroller
  22. 22.🤖 Does a wind-up toy usually have a microcontroller inside? (a) No (b) Yes
  23. 23.🤖 Does a toy robot usually have a microcontroller inside? (a) No (b) Yes
  24. 24.True or false: a plain wall switch usually has a microcontroller inside. (a) True (b) False
  25. 25.True or false: a laptop needs much more power. (a) True (b) False
  26. 26.🧭 Which part of a microcontroller board keeps the voltage steady? (a) the voltage regulator (b) the power LED (c) the main chip (d) the reset button
  27. 27.True or false: a washing machine has no microcontroller inside. (a) True (b) False
  28. 28.True or false: a washing machine usually has a microcontroller inside. (a) False (b) True
  29. 29.True or false: a hand pump has no microcontroller inside. (a) True (b) False
  30. 30.🤖 Does a digital alarm clock usually have a microcontroller inside? (a) Yes (b) No
  31. 31.Which of these usually has a microcontroller inside? (a) a candle (b) a bicycle bell (c) a digital thermometer (d) a plain wall switch
  32. 32.True or false: a laptop uses very little power. (a) True (b) False
  33. 33.Which of these has no microcontroller inside? (a) a microwave oven (b) a bicycle bell (c) a washing machine (d) a toy robot
  34. 34.Which job is done by the voltage regulator? (a) runs the program (b) keeps the voltage steady (c) restarts the program (d) shows the board is on
  35. 35.True or false: a spinning top usually has a microcontroller inside. (a) False (b) True
  36. 36.Which of these usually has a microcontroller inside? (a) a washing machine (b) a wind-up toy (c) a spinning top (d) a hand pump
  37. 37.Which job is done by the reset button? (a) connect sensors and LEDs (b) restarts the program (c) shows the board is on (d) keeps the voltage steady
  38. 38.🤖 Does a hand pump usually have a microcontroller inside? (a) Yes (b) No
  39. 39.🤖 Where does the board keep its program when the power is off? (a) the power LED (b) flash memory (c) the USB cable (d) the resistor
  40. 40.True or false: a microcontroller has no screen of its own. (a) True (b) False

Answer key

  1. uploaded over USB
  2. No
  3. a toy robot
  4. the main chip
  5. connect sensors and LEDs
  6. No
  7. laptop
  8. True
  9. microcontroller
  10. the USB port
  11. the pins
  12. Yes
  13. a hand pump
  14. a wind-up toy
  15. False
  16. Yes
  17. a smart watch
  18. laptop
  19. a microwave oven
  20. microcontroller
  21. microcontroller
  22. No
  23. Yes
  24. False
  25. True
  26. the voltage regulator
  27. False
  28. True
  29. True
  30. Yes
  31. a digital thermometer
  32. False
  33. a bicycle bell
  34. keeps the voltage steady
  35. False
  36. a washing machine
  37. restarts the program
  38. No
  39. flash memory
  40. True

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