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Electronics Worksheet: What Is a Microcontroller

Electronics lesson 21: What is a microcontroller? · Set 477 · 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 microcontroller runs many apps at once. (a) False (b) True
  2. 2.🤖 Does a plain wall switch usually have a microcontroller inside? (a) Yes (b) No
  3. 3.Which of these usually has a microcontroller inside? (a) a hand pump (b) a wind-up toy (c) a spinning top (d) a toy robot
  4. 4.🤖 Does a wind-up toy usually have a microcontroller inside? (a) Yes (b) No
  5. 5.True or false: a TV remote has no microcontroller inside. (a) False (b) True
  6. 6.True or false: a microcontroller uses very little power. (a) False (b) True
  7. 7.🧭 Which part of a microcontroller board runs the program? (a) the power LED (b) the reset button (c) the voltage regulator (d) the main chip
  8. 8.Which job is done by the USB port? (a) connect sensors and LEDs (b) runs the program (c) brings power and code (d) restarts the program
  9. 9.True or false: a laptop uses very little power. (a) True (b) False
  10. 10.True or false: a laptop has a built-in keyboard. (a) False (b) True
  11. 11.Which of these has no microcontroller inside? (a) a digital alarm clock (b) a digital thermometer (c) a hand pump (d) a toy robot
  12. 12.🤖 Does a toy robot usually have a microcontroller inside? (a) No (b) Yes
  13. 13.Which job is done by the voltage regulator? (a) keeps the voltage steady (b) brings power and code (c) runs the program (d) shows the board is on
  14. 14.🤖 Microcontroller or laptop: which one has a built-in keyboard? (a) laptop (b) microcontroller
  15. 15.🧭 Which part of a microcontroller board brings power and code? (a) the USB port (b) the power LED (c) the pins (d) the voltage regulator
  16. 16.Which job is done by the main chip? (a) runs the program (b) restarts the program (c) keeps the voltage steady (d) shows the board is on
  17. 17.Which of these usually has a microcontroller inside? (a) a spinning top (b) a bicycle bell (c) a wind-up toy (d) a microwave oven
  18. 18.Which of these usually has a microcontroller inside? (a) a bicycle bell (b) a hand pump (c) a wind-up toy (d) a digital alarm clock
  19. 19.True or false: a toy robot usually has a microcontroller inside. (a) True (b) False
  20. 20.🤖 Does a washing machine usually have a microcontroller inside? (a) Yes (b) No
  21. 21.Which job is done by the power LED? (a) shows the board is on (b) brings power and code (c) connect sensors and LEDs (d) restarts the program
  22. 22.True or false: a washing machine usually has a microcontroller inside. (a) False (b) True
  23. 23.True or false: a laptop needs much more power. (a) True (b) False
  24. 24.🧭 Which part of a microcontroller board shows the board is on? (a) the main chip (b) the power LED (c) the reset button (d) the pins
  25. 25.Which of these usually has a microcontroller inside? (a) a bicycle bell (b) a smart watch (c) a candle (d) a plain wall switch
  26. 26.🧭 Which part of a microcontroller board restarts the program? (a) the voltage regulator (b) the reset button (c) the power LED (d) the USB port
  27. 27.🧭 Which part of a microcontroller board connect sensors and LEDs? (a) the voltage regulator (b) the USB port (c) the pins (d) the reset button
  28. 28.True or false: a laptop runs one small program. (a) False (b) True
  29. 29.🤖 Microcontroller or laptop: which one runs one small program? (a) laptop (b) microcontroller
  30. 30.True or false: a microcontroller has no screen of its own. (a) False (b) True
  31. 31.🤖 How does a new program get onto a microcontroller board? (a) typed on the chip (b) sent by sound (c) drawn with a pen (d) uploaded over USB
  32. 32.🤖 Which is a safe power source for a beginner microcontroller board? (a) a 230 V cable (b) a wall socket directly (c) bare mains wires (d) USB or a 9 V battery
  33. 33.Which of these has no microcontroller inside? (a) a washing machine (b) a TV remote (c) a digital alarm clock (d) a bicycle bell
  34. 34.🤖 Does a spinning top usually have a microcontroller inside? (a) No (b) Yes
  35. 35.🤖 Does a bicycle bell usually have a microcontroller inside? (a) No (b) Yes
  36. 36.🤖 Microcontroller or laptop: which one uses very little power? (a) laptop (b) microcontroller
  37. 37.Which of these has no microcontroller inside? (a) a washing machine (b) a TV remote (c) a plain wall switch (d) a microwave oven
  38. 38.True or false: a candle usually has a microcontroller inside. (a) True (b) False
  39. 39.🤖 When the main loop of a microcontroller program ends, what happens? (a) it stops forever (b) it starts again (c) the board breaks (d) it deletes itself
  40. 40.True or false: a microcontroller runs one small program. (a) False (b) True

Answer key

  1. False
  2. No
  3. a toy robot
  4. No
  5. False
  6. True
  7. the main chip
  8. brings power and code
  9. False
  10. True
  11. a hand pump
  12. Yes
  13. keeps the voltage steady
  14. laptop
  15. the USB port
  16. runs the program
  17. a microwave oven
  18. a digital alarm clock
  19. True
  20. Yes
  21. shows the board is on
  22. True
  23. True
  24. the power LED
  25. a smart watch
  26. the reset button
  27. the pins
  28. False
  29. microcontroller
  30. True
  31. uploaded over USB
  32. USB or a 9 V battery
  33. a bicycle bell
  34. No
  35. No
  36. microcontroller
  37. a plain wall switch
  38. False
  39. it starts again
  40. True

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