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Electronics Worksheet: What Is a Microcontroller

Electronics lesson 21: What is a microcontroller? · Set 432 · 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.

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

Answer key

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

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