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Electronics Worksheet: What Is a Microcontroller

Electronics lesson 21: What is a microcontroller? · Set 635 · 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 runs many apps at once? (a) microcontroller (b) laptop
  2. 2.🧭 Which part of a microcontroller board runs the program? (a) the pins (b) the voltage regulator (c) the main chip (d) the USB port
  3. 3.Which of these has no microcontroller inside? (a) a digital thermometer (b) a toy robot (c) a candle (d) a washing machine
  4. 4.True or false: a candle has no microcontroller inside. (a) True (b) False
  5. 5.True or false: a laptop has a built-in keyboard. (a) False (b) True
  6. 6.Which job is done by the reset button? (a) restarts the program (b) connect sensors and LEDs (c) brings power and code (d) runs the program
  7. 7.Which of these usually has a microcontroller inside? (a) a plain wall switch (b) a wind-up toy (c) a TV remote (d) a candle
  8. 8.True or false: a laptop uses very little power. (a) False (b) True
  9. 9.Which job is done by the voltage regulator? (a) keeps the voltage steady (b) shows the board is on (c) runs the program (d) connect sensors and LEDs
  10. 10.True or false: a candle usually has a microcontroller inside. (a) False (b) True
  11. 11.🤖 Does a digital alarm clock usually have a microcontroller inside? (a) Yes (b) No
  12. 12.Which of these usually has a microcontroller inside? (a) a candle (b) a washing machine (c) a spinning top (d) a plain wall switch
  13. 13.Which of these has no microcontroller inside? (a) a washing machine (b) a microwave oven (c) a spinning top (d) a digital thermometer
  14. 14.🤖 When the main loop of a microcontroller program ends, what happens? (a) it stops forever (b) the board breaks (c) it starts again (d) it deletes itself
  15. 15.🤖 What is a microcontroller? (a) a big desktop computer (b) a computer on one chip (c) a kind of bulb (d) a type of battery
  16. 16.Which of these usually has a microcontroller inside? (a) a microwave oven (b) a candle (c) a wind-up toy (d) a plain wall switch
  17. 17.🧭 Which part of a microcontroller board shows the board is on? (a) the power LED (b) the voltage regulator (c) the reset button (d) the pins
  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.True or false: a TV remote has no microcontroller inside. (a) False (b) True
  20. 20.🤖 Does a hand pump usually have a microcontroller inside? (a) Yes (b) No
  21. 21.🤖 Does a washing machine usually have a microcontroller inside? (a) Yes (b) No
  22. 22.Which of these has no microcontroller inside? (a) a digital thermometer (b) a digital alarm clock (c) a washing machine (d) a bicycle bell
  23. 23.🤖 Microcontroller or laptop: which one has a built-in keyboard? (a) laptop (b) microcontroller
  24. 24.🧭 Which part of a microcontroller board keeps the voltage steady? (a) the reset button (b) the USB port (c) the main chip (d) the voltage regulator
  25. 25.🧭 Which part of a microcontroller board brings power and code? (a) the reset button (b) the voltage regulator (c) the USB port (d) the pins
  26. 26.🤖 Does a toy robot usually have a microcontroller inside? (a) No (b) Yes
  27. 27.Which job is done by the USB port? (a) brings power and code (b) connect sensors and LEDs (c) keeps the voltage steady (d) shows the board is on
  28. 28.🤖 Does a smart watch usually have a microcontroller inside? (a) Yes (b) No
  29. 29.🤖 Does a microwave oven usually have a microcontroller inside? (a) Yes (b) No
  30. 30.True or false: a microcontroller runs many apps at once. (a) False (b) True
  31. 31.Which of these has no microcontroller inside? (a) a plain wall switch (b) a washing machine (c) a digital alarm clock (d) a digital thermometer
  32. 32.Which of these has no microcontroller inside? (a) a microwave oven (b) a wind-up toy (c) a TV remote (d) a digital alarm clock
  33. 33.Which job is done by the main chip? (a) shows the board is on (b) keeps the voltage steady (c) connect sensors and LEDs (d) runs the program
  34. 34.🤖 How does a new program get onto a microcontroller board? (a) typed on the chip (b) uploaded over USB (c) sent by sound (d) drawn with a pen
  35. 35.🤖 Does a candle usually have a microcontroller inside? (a) Yes (b) No
  36. 36.🤖 Microcontroller or laptop: which one needs much more power? (a) microcontroller (b) laptop
  37. 37.True or false: a digital alarm clock has no microcontroller inside. (a) True (b) False
  38. 38.🤖 Does a digital thermometer usually have a microcontroller inside? (a) Yes (b) No
  39. 39.🤖 Does a TV remote usually have a microcontroller inside? (a) Yes (b) No
  40. 40.🤖 Microcontroller or laptop: which one uses very little power? (a) laptop (b) microcontroller

Answer key

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

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