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Electronics Worksheet: What Is a Microcontroller

Electronics lesson 21: What is a microcontroller? · Set 264 · 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.True or false: a laptop has a built-in keyboard. (a) False (b) True
  2. 2.🧭 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 USB port
  3. 3.True or false: a wind-up toy usually has a microcontroller inside. (a) False (b) True
  4. 4.🤖 Does a smart watch usually have a microcontroller inside? (a) No (b) Yes
  5. 5.True or false: a candle usually has a microcontroller inside. (a) False (b) True
  6. 6.🤖 Microcontroller or laptop: which one has no screen of its own? (a) laptop (b) microcontroller
  7. 7.True or false: a laptop runs one small program. (a) True (b) False
  8. 8.🤖 Microcontroller or laptop: which one uses very little power? (a) laptop (b) microcontroller
  9. 9.🤖 Microcontroller or laptop: which one has a built-in keyboard? (a) laptop (b) microcontroller
  10. 10.True or false: a plain wall switch usually has a microcontroller inside. (a) False (b) True
  11. 11.🧭 Which part of a microcontroller board runs the program? (a) the main chip (b) the pins (c) the reset button (d) the power LED
  12. 12.True or false: a microcontroller has no screen of its own. (a) False (b) True
  13. 13.Which job is done by the voltage regulator? (a) connect sensors and LEDs (b) shows the board is on (c) brings power and code (d) keeps the voltage steady
  14. 14.🤖 Does a microwave oven usually have a microcontroller inside? (a) Yes (b) No
  15. 15.🤖 Does a digital alarm clock usually have a microcontroller inside? (a) No (b) Yes
  16. 16.True or false: a laptop uses very little power. (a) True (b) False
  17. 17.🧭 Which part of a microcontroller board brings power and code? (a) the USB port (b) the voltage regulator (c) the power LED (d) the reset button
  18. 18.🤖 Does a wind-up toy usually have a microcontroller inside? (a) No (b) Yes
  19. 19.True or false: a bicycle bell has no microcontroller inside. (a) True (b) False
  20. 20.🤖 Microcontroller or laptop: which one runs one small program? (a) laptop (b) microcontroller
  21. 21.True or false: a smart watch usually has a microcontroller inside. (a) True (b) False
  22. 22.🤖 What is a microcontroller? (a) a big desktop computer (b) a kind of bulb (c) a type of battery (d) a computer on one chip
  23. 23.Which of these usually has a microcontroller inside? (a) a hand pump (b) a TV remote (c) a candle (d) a spinning top
  24. 24.Which job is done by the USB port? (a) connect sensors and LEDs (b) runs the program (c) brings power and code (d) keeps the voltage steady
  25. 25.🧭 Which part of a microcontroller board connect sensors and LEDs? (a) the USB port (b) the main chip (c) the pins (d) the voltage regulator
  26. 26.🤖 Does a digital thermometer usually have a microcontroller inside? (a) No (b) Yes
  27. 27.🤖 Microcontroller or laptop: which one runs many apps at once? (a) laptop (b) microcontroller
  28. 28.🤖 Which is a safe power source for a beginner microcontroller board? (a) USB or a 9 V battery (b) a 230 V cable (c) bare mains wires (d) a wall socket directly
  29. 29.🤖 Microcontroller or laptop: which one needs much more power? (a) microcontroller (b) laptop
  30. 30.True or false: a toy robot has no microcontroller inside. (a) False (b) True
  31. 31.True or false: a wind-up toy has no microcontroller inside. (a) True (b) False
  32. 32.Which of these has no microcontroller inside? (a) a digital alarm clock (b) a toy robot (c) a digital thermometer (d) a wind-up toy
  33. 33.Which job is done by the pins? (a) keeps the voltage steady (b) shows the board is on (c) connect sensors and LEDs (d) restarts the program
  34. 34.🧭 Which part of a microcontroller board keeps the voltage steady? (a) the pins (b) the USB port (c) the power LED (d) the voltage regulator
  35. 35.Which of these usually has a microcontroller inside? (a) a plain wall switch (b) a candle (c) a spinning top (d) a smart watch
  36. 36.🤖 Does a hand pump usually have a microcontroller inside? (a) Yes (b) No
  37. 37.🤖 When the main loop of a microcontroller program ends, what happens? (a) the board breaks (b) it starts again (c) it stops forever (d) it deletes itself
  38. 38.Which of these usually has a microcontroller inside? (a) a washing machine (b) a bicycle bell (c) a candle (d) a plain wall switch
  39. 39.Which of these usually has a microcontroller inside? (a) a hand pump (b) a candle (c) a digital thermometer (d) a wind-up toy
  40. 40.True or false: a digital thermometer has no microcontroller inside. (a) False (b) True

Answer key

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

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