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Electronics Worksheet: What Is a Microcontroller

Electronics lesson 21: What is a microcontroller? · Set 669 · 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 part of a microcontroller board shows the board is on? (a) the power LED (b) the reset button (c) the main chip (d) the USB port
  2. 2.Which job is done by the voltage regulator? (a) shows the board is on (b) keeps the voltage steady (c) connect sensors and LEDs (d) brings power and code
  3. 3.True or false: a laptop runs one small program. (a) False (b) True
  4. 4.🤖 Does a plain wall switch usually have a microcontroller inside? (a) No (b) Yes
  5. 5.🤖 Microcontroller or laptop: which one has no screen of its own? (a) microcontroller (b) laptop
  6. 6.🧭 Which part of a microcontroller board runs the program? (a) the voltage regulator (b) the main chip (c) the USB port (d) the reset button
  7. 7.True or false: a laptop has no screen of its own. (a) True (b) False
  8. 8.True or false: a toy robot usually has a microcontroller inside. (a) False (b) True
  9. 9.Which of these has no microcontroller inside? (a) a candle (b) a TV remote (c) a smart watch (d) a microwave oven
  10. 10.Which of these usually has a microcontroller inside? (a) a wind-up toy (b) a toy robot (c) a plain wall switch (d) a candle
  11. 11.🤖 Does a digital thermometer usually have a microcontroller inside? (a) No (b) Yes
  12. 12.True or false: a laptop needs much more power. (a) False (b) True
  13. 13.True or false: a spinning top usually has a microcontroller inside. (a) True (b) False
  14. 14.True or false: a microcontroller uses very little power. (a) False (b) True
  15. 15.Which job is done by the main chip? (a) shows the board is on (b) brings power and code (c) runs the program (d) keeps the voltage steady
  16. 16.🤖 Which is a safe power source for a beginner microcontroller board? (a) bare mains wires (b) a 230 V cable (c) a wall socket directly (d) USB or a 9 V battery
  17. 17.🤖 Does a candle usually have a microcontroller inside? (a) No (b) Yes
  18. 18.🤖 Microcontroller or laptop: which one runs many apps at once? (a) laptop (b) microcontroller
  19. 19.Which of these has no microcontroller inside? (a) a microwave oven (b) a TV remote (c) a smart watch (d) a wind-up toy
  20. 20.True or false: a washing machine usually has a microcontroller inside. (a) False (b) True
  21. 21.🧭 Which part of a microcontroller board brings power and code? (a) the power LED (b) the voltage regulator (c) the reset button (d) the USB port
  22. 22.🤖 Microcontroller or laptop: which one uses very little power? (a) laptop (b) microcontroller
  23. 23.Which of these has no microcontroller inside? (a) a microwave oven (b) a digital thermometer (c) a spinning top (d) a washing machine
  24. 24.True or false: a microcontroller has no screen of its own. (a) False (b) True
  25. 25.Which job is done by the pins? (a) brings power and code (b) connect sensors and LEDs (c) shows the board is on (d) restarts the program
  26. 26.🤖 Does a hand pump usually have a microcontroller inside? (a) Yes (b) No
  27. 27.🤖 Microcontroller or laptop: which one has a built-in keyboard? (a) microcontroller (b) laptop
  28. 28.Which of these usually has a microcontroller inside? (a) a hand pump (b) a candle (c) a wind-up toy (d) a microwave oven
  29. 29.🤖 Does a washing machine usually have a microcontroller inside? (a) No (b) Yes
  30. 30.True or false: a digital alarm clock usually has a microcontroller inside. (a) False (b) True
  31. 31.🤖 How does a new program get onto a microcontroller board? (a) drawn with a pen (b) typed on the chip (c) uploaded over USB (d) sent by sound
  32. 32.True or false: a microwave oven usually has a microcontroller inside. (a) True (b) False
  33. 33.True or false: a digital thermometer has no microcontroller inside. (a) True (b) False
  34. 34.Which of these usually has a microcontroller inside? (a) a plain wall switch (b) a hand pump (c) a smart watch (d) a bicycle bell
  35. 35.🧭 Which part of a microcontroller board keeps the voltage steady? (a) the reset button (b) the voltage regulator (c) the power LED (d) the main chip
  36. 36.Which of these has no microcontroller inside? (a) a digital alarm clock (b) a microwave oven (c) a TV remote (d) a plain wall switch
  37. 37.🤖 Does a digital alarm clock usually have a microcontroller inside? (a) No (b) Yes
  38. 38.🤖 Microcontroller or laptop: which one needs much more power? (a) laptop (b) microcontroller
  39. 39.Which job is done by the power LED? (a) runs the program (b) connect sensors and LEDs (c) brings power and code (d) shows the board is on
  40. 40.True or false: a microcontroller runs many apps at once. (a) False (b) True

Answer key

  1. the power LED
  2. keeps the voltage steady
  3. False
  4. No
  5. microcontroller
  6. the main chip
  7. False
  8. True
  9. a candle
  10. a toy robot
  11. Yes
  12. True
  13. False
  14. True
  15. runs the program
  16. USB or a 9 V battery
  17. No
  18. laptop
  19. a wind-up toy
  20. True
  21. the USB port
  22. microcontroller
  23. a spinning top
  24. True
  25. connect sensors and LEDs
  26. No
  27. laptop
  28. a microwave oven
  29. Yes
  30. True
  31. uploaded over USB
  32. True
  33. False
  34. a smart watch
  35. the voltage regulator
  36. a plain wall switch
  37. Yes
  38. laptop
  39. shows the board is on
  40. False

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