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Electronics Worksheet: What Is a Microcontroller

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

Answer key

  1. laptop
  2. False
  3. a candle
  4. False
  5. True
  6. the USB port
  7. Yes
  8. the pins
  9. laptop
  10. No
  11. Yes
  12. USB or a 9 V battery
  13. True
  14. the reset button
  15. False
  16. a TV remote
  17. it starts again
  18. True
  19. True
  20. a smart watch
  21. the main chip
  22. uploaded over USB
  23. laptop
  24. a digital thermometer
  25. microcontroller
  26. the voltage regulator
  27. runs the program
  28. keeps the voltage steady
  29. No
  30. the power LED
  31. No
  32. False
  33. a microwave oven
  34. Yes
  35. a washing machine
  36. True
  37. a wind-up toy
  38. False
  39. False
  40. True

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