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Electronics Worksheet: What Is a Microcontroller

Electronics lesson 21: What is a microcontroller? · Set 474 · 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 hand pump has no microcontroller inside. (a) True (b) False
  2. 2.True or false: a washing machine has no microcontroller inside. (a) True (b) False
  3. 3.True or false: a wind-up toy has no microcontroller inside. (a) True (b) False
  4. 4.🧭 Which part of a microcontroller board runs the program? (a) the USB port (b) the voltage regulator (c) the pins (d) the main chip
  5. 5.🤖 Microcontroller or laptop: which one has no screen of its own? (a) laptop (b) microcontroller
  6. 6.True or false: a candle usually has a microcontroller inside. (a) True (b) False
  7. 7.Which of these has no microcontroller inside? (a) a digital thermometer (b) a digital alarm clock (c) a microwave oven (d) a wind-up toy
  8. 8.Which job is done by the reset button? (a) keeps the voltage steady (b) restarts the program (c) brings power and code (d) connect sensors and LEDs
  9. 9.🤖 What is a microcontroller? (a) a big desktop computer (b) a kind of bulb (c) a computer on one chip (d) a type of battery
  10. 10.🤖 Does a bicycle bell usually have a microcontroller inside? (a) No (b) Yes
  11. 11.Which of these has no microcontroller inside? (a) a microwave oven (b) a toy robot (c) a hand pump (d) a smart watch
  12. 12.🧭 Which part of a microcontroller board restarts the program? (a) the voltage regulator (b) the USB port (c) the main chip (d) the reset button
  13. 13.🤖 How does a new program get onto a microcontroller board? (a) drawn with a pen (b) uploaded over USB (c) sent by sound (d) typed on the chip
  14. 14.🧭 Which part of a microcontroller board keeps the voltage steady? (a) the USB port (b) the pins (c) the voltage regulator (d) the main chip
  15. 15.Which of these usually has a microcontroller inside? (a) a candle (b) a plain wall switch (c) a toy robot (d) a bicycle bell
  16. 16.🤖 Microcontroller or laptop: which one needs much more power? (a) microcontroller (b) laptop
  17. 17.🤖 When the main loop of a microcontroller program ends, what happens? (a) it starts again (b) it stops forever (c) the board breaks (d) it deletes itself
  18. 18.🤖 Which is a safe power source for a beginner microcontroller board? (a) bare mains wires (b) USB or a 9 V battery (c) a 230 V cable (d) a wall socket directly
  19. 19.🤖 Does a washing machine usually have a microcontroller inside? (a) Yes (b) No
  20. 20.🤖 Does a TV remote usually have a microcontroller inside? (a) No (b) Yes
  21. 21.🤖 Microcontroller or laptop: which one runs many apps at once? (a) laptop (b) microcontroller
  22. 22.True or false: a laptop has no screen of its own. (a) True (b) False
  23. 23.🧭 Which part of a microcontroller board brings power and code? (a) the USB port (b) the power LED (c) the reset button (d) the voltage regulator
  24. 24.True or false: a smart watch usually has a microcontroller inside. (a) False (b) True
  25. 25.🤖 Does a microwave oven usually have a microcontroller inside? (a) Yes (b) No
  26. 26.True or false: a microcontroller runs many apps at once. (a) True (b) False
  27. 27.True or false: a TV remote has no microcontroller inside. (a) False (b) True
  28. 28.True or false: a wind-up toy usually has a microcontroller inside. (a) True (b) False
  29. 29.True or false: a spinning top has no microcontroller inside. (a) False (b) True
  30. 30.Which of these usually has a microcontroller inside? (a) a plain wall switch (b) a candle (c) a wind-up toy (d) a digital alarm clock
  31. 31.Which job is done by the pins? (a) connect sensors and LEDs (b) brings power and code (c) keeps the voltage steady (d) restarts the program
  32. 32.Which job is done by the voltage regulator? (a) brings power and code (b) restarts the program (c) keeps the voltage steady (d) runs the program
  33. 33.Which of these has no microcontroller inside? (a) a digital alarm clock (b) a plain wall switch (c) a smart watch (d) a digital thermometer
  34. 34.🤖 Does a hand pump usually have a microcontroller inside? (a) No (b) Yes
  35. 35.🤖 Does a wind-up toy usually have a microcontroller inside? (a) Yes (b) No
  36. 36.True or false: a laptop runs one small program. (a) True (b) False
  37. 37.True or false: a digital thermometer usually has a microcontroller inside. (a) True (b) False
  38. 38.Which of these usually has a microcontroller inside? (a) a digital thermometer (b) a plain wall switch (c) a candle (d) a hand pump
  39. 39.True or false: a microcontroller uses very little power. (a) False (b) True
  40. 40.Which of these has no microcontroller inside? (a) a digital thermometer (b) a spinning top (c) a TV remote (d) a microwave oven

Answer key

  1. True
  2. False
  3. True
  4. the main chip
  5. microcontroller
  6. False
  7. a wind-up toy
  8. restarts the program
  9. a computer on one chip
  10. No
  11. a hand pump
  12. the reset button
  13. uploaded over USB
  14. the voltage regulator
  15. a toy robot
  16. laptop
  17. it starts again
  18. USB or a 9 V battery
  19. Yes
  20. Yes
  21. laptop
  22. False
  23. the USB port
  24. True
  25. Yes
  26. False
  27. False
  28. False
  29. True
  30. a digital alarm clock
  31. connect sensors and LEDs
  32. keeps the voltage steady
  33. a plain wall switch
  34. No
  35. No
  36. False
  37. True
  38. a digital thermometer
  39. True
  40. a spinning top

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