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Electronics Worksheet: What Is a Microcontroller

Electronics lesson 21: What is a microcontroller? · Set 575 · 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 plain wall switch usually has a microcontroller inside. (a) False (b) True
  2. 2.Which job is done by the reset button? (a) runs the program (b) keeps the voltage steady (c) connect sensors and LEDs (d) restarts the program
  3. 3.True or false: a spinning top usually has a microcontroller inside. (a) True (b) False
  4. 4.🧭 Which part of a microcontroller board connect sensors and LEDs? (a) the power LED (b) the main chip (c) the USB port (d) the pins
  5. 5.Which of these has no microcontroller inside? (a) a smart watch (b) a digital alarm clock (c) a washing machine (d) a bicycle bell
  6. 6.🤖 Does a microwave oven usually have a microcontroller inside? (a) Yes (b) No
  7. 7.Which job is done by the USB port? (a) brings power and code (b) runs the program (c) restarts the program (d) keeps the voltage steady
  8. 8.🤖 Microcontroller or laptop: which one uses very little power? (a) laptop (b) microcontroller
  9. 9.🤖 What is a microcontroller? (a) a kind of bulb (b) a type of battery (c) a computer on one chip (d) a big desktop computer
  10. 10.True or false: a microcontroller needs much more power. (a) False (b) True
  11. 11.🧭 Which part of a microcontroller board restarts the program? (a) the reset button (b) the main chip (c) the pins (d) the USB port
  12. 12.True or false: a TV remote has no microcontroller inside. (a) False (b) True
  13. 13.🤖 Does a wind-up toy usually have a microcontroller inside? (a) No (b) Yes
  14. 14.🧭 Which part of a microcontroller board keeps the voltage steady? (a) the power LED (b) the voltage regulator (c) the USB port (d) the pins
  15. 15.🤖 Does a digital alarm clock usually have a microcontroller inside? (a) Yes (b) No
  16. 16.Which job is done by the main chip? (a) runs the program (b) keeps the voltage steady (c) connect sensors and LEDs (d) brings power and code
  17. 17.Which of these has no microcontroller inside? (a) a spinning top (b) a digital thermometer (c) a digital alarm clock (d) a smart watch
  18. 18.🤖 Does a plain wall switch usually have a microcontroller inside? (a) Yes (b) No
  19. 19.🤖 Does a hand pump usually have a microcontroller inside? (a) Yes (b) No
  20. 20.True or false: a hand pump has no microcontroller inside. (a) True (b) False
  21. 21.Which of these usually has a microcontroller inside? (a) a spinning top (b) a plain wall switch (c) a digital alarm clock (d) a wind-up toy
  22. 22.True or false: a plain wall switch has no microcontroller inside. (a) False (b) True
  23. 23.🤖 Does a candle usually have a microcontroller inside? (a) No (b) Yes
  24. 24.True or false: a smart watch usually has a microcontroller inside. (a) False (b) True
  25. 25.True or false: a microcontroller runs one small program. (a) False (b) True
  26. 26.🧭 Which part of a microcontroller board runs the program? (a) the main chip (b) the power LED (c) the pins (d) the reset button
  27. 27.True or false: a microcontroller has no screen of its own. (a) False (b) True
  28. 28.🤖 Microcontroller or laptop: which one needs much more power? (a) microcontroller (b) laptop
  29. 29.Which of these has no microcontroller inside? (a) a washing machine (b) a microwave oven (c) a toy robot (d) a candle
  30. 30.True or false: a microcontroller uses very little power. (a) True (b) False
  31. 31.🧭 Which part of a microcontroller board brings power and code? (a) the main chip (b) the voltage regulator (c) the USB port (d) the reset button
  32. 32.🤖 Which is a safe power source for a beginner microcontroller board? (a) a wall socket directly (b) a 230 V cable (c) bare mains wires (d) USB or a 9 V battery
  33. 33.Which of these usually has a microcontroller inside? (a) a candle (b) a hand pump (c) a washing machine (d) a spinning top
  34. 34.Which job is done by the voltage regulator? (a) shows the board is on (b) keeps the voltage steady (c) connect sensors and LEDs (d) runs the program
  35. 35.True or false: a toy robot usually has a microcontroller inside. (a) False (b) True
  36. 36.True or false: a microcontroller has a built-in keyboard. (a) True (b) False
  37. 37.🤖 Does a TV remote usually have a microcontroller inside? (a) No (b) Yes
  38. 38.🤖 Microcontroller or laptop: which one runs one small program? (a) laptop (b) microcontroller
  39. 39.🤖 Does a washing machine usually have a microcontroller inside? (a) Yes (b) No
  40. 40.🤖 When the main loop of a microcontroller program ends, what happens? (a) it deletes itself (b) it starts again (c) it stops forever (d) the board breaks

Answer key

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

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