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Electronics Worksheet: What Is a Microcontroller

Electronics lesson 21: What is a microcontroller? · Set 564 · 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.🤖 Microcontroller or laptop: which one needs much more power? (a) laptop (b) microcontroller
  2. 2.True or false: a laptop has a built-in keyboard. (a) True (b) False
  3. 3.Which of these has no microcontroller inside? (a) a TV remote (b) a smart watch (c) a spinning top (d) a digital alarm clock
  4. 4.Which of these has no microcontroller inside? (a) a hand pump (b) a digital alarm clock (c) a smart watch (d) a washing machine
  5. 5.🧭 Which part of a microcontroller board shows the board is on? (a) the main chip (b) the pins (c) the power LED (d) the reset button
  6. 6.Which of these has no microcontroller inside? (a) a smart watch (b) a toy robot (c) a washing machine (d) a wind-up toy
  7. 7.True or false: a laptop runs many apps at once. (a) True (b) False
  8. 8.🤖 Which is a safe power source for a beginner microcontroller board? (a) a wall socket directly (b) USB or a 9 V battery (c) a 230 V cable (d) bare mains wires
  9. 9.True or false: a laptop has no screen of its own. (a) True (b) False
  10. 10.🧭 Which part of a microcontroller board keeps the voltage steady? (a) the USB port (b) the reset button (c) the voltage regulator (d) the pins
  11. 11.Which of these usually has a microcontroller inside? (a) a spinning top (b) a microwave oven (c) a hand pump (d) a plain wall switch
  12. 12.🧭 Which part of a microcontroller board connect sensors and LEDs? (a) the voltage regulator (b) the power LED (c) the pins (d) the main chip
  13. 13.🤖 Microcontroller or laptop: which one uses very little power? (a) laptop (b) microcontroller
  14. 14.Which of these usually has a microcontroller inside? (a) a wind-up toy (b) a plain wall switch (c) a bicycle bell (d) a digital thermometer
  15. 15.True or false: a microcontroller uses very little power. (a) False (b) True
  16. 16.True or false: a microcontroller runs one small program. (a) True (b) False
  17. 17.Which job is done by the reset button? (a) shows the board is on (b) restarts the program (c) keeps the voltage steady (d) connect sensors and LEDs
  18. 18.True or false: a bicycle bell has no microcontroller inside. (a) True (b) False
  19. 19.True or false: a washing machine has no microcontroller inside. (a) False (b) True
  20. 20.🤖 Microcontroller or laptop: which one runs many apps at once? (a) laptop (b) microcontroller
  21. 21.🧭 Which part of a microcontroller board brings power and code? (a) the pins (b) the voltage regulator (c) the reset button (d) the USB port
  22. 22.True or false: a bicycle bell usually has a microcontroller inside. (a) False (b) True
  23. 23.Which job is done by the main chip? (a) connect sensors and LEDs (b) shows the board is on (c) keeps the voltage steady (d) runs the program
  24. 24.🤖 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
  25. 25.Which job is done by the voltage regulator? (a) brings power and code (b) keeps the voltage steady (c) connect sensors and LEDs (d) runs the program
  26. 26.🤖 What is a microcontroller? (a) a computer on one chip (b) a big desktop computer (c) a type of battery (d) a kind of bulb
  27. 27.🤖 Does a smart watch usually have a microcontroller inside? (a) Yes (b) No
  28. 28.🧭 Which part of a microcontroller board restarts the program? (a) the main chip (b) the power LED (c) the reset button (d) the pins
  29. 29.Which of these usually has a microcontroller inside? (a) a hand pump (b) a smart watch (c) a candle (d) a plain wall switch
  30. 30.True or false: a candle has no microcontroller inside. (a) False (b) True
  31. 31.True or false: a microcontroller needs much more power. (a) True (b) False
  32. 32.🤖 Does a candle usually have a microcontroller inside? (a) Yes (b) No
  33. 33.Which job is done by the pins? (a) restarts the program (b) connect sensors and LEDs (c) runs the program (d) keeps the voltage steady
  34. 34.Which of these has no microcontroller inside? (a) a digital alarm clock (b) a candle (c) a microwave oven (d) a washing machine
  35. 35.🤖 Does a plain wall switch usually have a microcontroller inside? (a) No (b) Yes
  36. 36.True or false: a digital thermometer has no microcontroller inside. (a) False (b) True
  37. 37.True or false: a laptop uses very little power. (a) False (b) True
  38. 38.True or false: a plain wall switch usually has a microcontroller inside. (a) True (b) False
  39. 39.🤖 Microcontroller or laptop: which one runs one small program? (a) microcontroller (b) laptop
  40. 40.🤖 Does a microwave oven usually have a microcontroller inside? (a) Yes (b) No

Answer key

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

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