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Electronics Worksheet: What Is a Microcontroller

Electronics lesson 21: What is a microcontroller? · Set 738 · 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.Which job is done by the USB port? (a) connect sensors and LEDs (b) brings power and code (c) shows the board is on (d) keeps the voltage steady
  2. 2.True or false: a laptop has no screen of its own. (a) False (b) True
  3. 3.🤖 Does a digital thermometer usually have a microcontroller inside? (a) Yes (b) No
  4. 4.True or false: a laptop needs much more power. (a) False (b) True
  5. 5.Which of these has no microcontroller inside? (a) a washing machine (b) a digital alarm clock (c) a plain wall switch (d) a digital thermometer
  6. 6.🧭 Which part of a microcontroller board connect sensors and LEDs? (a) the USB port (b) the power LED (c) the voltage regulator (d) the pins
  7. 7.True or false: a microwave oven has no microcontroller inside. (a) False (b) True
  8. 8.🤖 Does a spinning top usually have a microcontroller inside? (a) Yes (b) No
  9. 9.🤖 Microcontroller or laptop: which one runs one small program? (a) microcontroller (b) laptop
  10. 10.🧭 Which part of a microcontroller board keeps the voltage steady? (a) the voltage regulator (b) the power LED (c) the USB port (d) the pins
  11. 11.🧭 Which part of a microcontroller board runs the program? (a) the main chip (b) the voltage regulator (c) the power LED (d) the pins
  12. 12.🤖 Microcontroller or laptop: which one uses very little power? (a) microcontroller (b) laptop
  13. 13.True or false: a hand pump usually has a microcontroller inside. (a) False (b) True
  14. 14.True or false: a microcontroller runs one small program. (a) True (b) False
  15. 15.Which job is done by the voltage regulator? (a) connect sensors and LEDs (b) restarts the program (c) brings power and code (d) keeps the voltage steady
  16. 16.True or false: a laptop runs one small program. (a) False (b) True
  17. 17.True or false: a bicycle bell usually has a microcontroller inside. (a) True (b) False
  18. 18.🤖 Which is a safe power source for a beginner microcontroller board? (a) a 230 V cable (b) USB or a 9 V battery (c) bare mains wires (d) a wall socket directly
  19. 19.Which of these usually has a microcontroller inside? (a) a hand pump (b) a toy robot (c) a wind-up toy (d) a spinning top
  20. 20.Which job is done by the main chip? (a) runs the program (b) shows the board is on (c) brings power and code (d) connect sensors and LEDs
  21. 21.🤖 Microcontroller or laptop: which one has no screen of its own? (a) microcontroller (b) laptop
  22. 22.Which of these has no microcontroller inside? (a) a washing machine (b) a smart watch (c) a bicycle bell (d) a microwave oven
  23. 23.True or false: a microcontroller runs many apps at once. (a) False (b) True
  24. 24.Which of these has no microcontroller inside? (a) a candle (b) a washing machine (c) a toy robot (d) a digital thermometer
  25. 25.🧭 Which part of a microcontroller board shows the board is on? (a) the reset button (b) the power LED (c) the pins (d) the voltage regulator
  26. 26.🤖 Does a bicycle bell usually have a microcontroller inside? (a) Yes (b) No
  27. 27.🤖 When the main loop of a microcontroller program ends, what happens? (a) the board breaks (b) it stops forever (c) it deletes itself (d) it starts again
  28. 28.Which of these has no microcontroller inside? (a) a wind-up toy (b) a washing machine (c) a digital alarm clock (d) a microwave oven
  29. 29.🤖 What is a microcontroller? (a) a big desktop computer (b) a type of battery (c) a kind of bulb (d) a computer on one chip
  30. 30.🤖 Does a plain wall switch usually have a microcontroller inside? (a) No (b) Yes
  31. 31.🤖 Does a hand pump usually have a microcontroller inside? (a) No (b) Yes
  32. 32.🤖 Microcontroller or laptop: which one needs much more power? (a) microcontroller (b) laptop
  33. 33.🧭 Which part of a microcontroller board restarts the program? (a) the voltage regulator (b) the pins (c) the reset button (d) the main chip
  34. 34.🤖 Does a wind-up toy usually have a microcontroller inside? (a) Yes (b) No
  35. 35.True or false: a plain wall switch usually has a microcontroller inside. (a) False (b) True
  36. 36.True or false: a microcontroller needs much more power. (a) True (b) False
  37. 37.True or false: a digital thermometer has no microcontroller inside. (a) False (b) True
  38. 38.Which job is done by the reset button? (a) restarts the program (b) keeps the voltage steady (c) shows the board is on (d) brings power and code
  39. 39.True or false: a bicycle bell has no microcontroller inside. (a) False (b) True
  40. 40.True or false: a hand pump has no microcontroller inside. (a) True (b) False

Answer key

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

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