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Electronics Worksheet: What Is a Microcontroller

Electronics lesson 21: What is a microcontroller? · Set 308 · 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 one small program? (a) laptop (b) microcontroller
  2. 2.Which of these usually has a microcontroller inside? (a) a toy robot (b) a candle (c) a wind-up toy (d) a bicycle bell
  3. 3.🧭 Which part of a microcontroller board brings power and code? (a) the power LED (b) the reset button (c) the USB port (d) the pins
  4. 4.🤖 Does a bicycle bell usually have a microcontroller inside? (a) Yes (b) No
  5. 5.🤖 Does a digital thermometer usually have a microcontroller inside? (a) Yes (b) No
  6. 6.Which of these has no microcontroller inside? (a) a digital thermometer (b) a microwave oven (c) a candle (d) a digital alarm clock
  7. 7.True or false: a toy robot usually has a microcontroller inside. (a) False (b) True
  8. 8.🧭 Which part of a microcontroller board runs the program? (a) the reset button (b) the pins (c) the main chip (d) the power LED
  9. 9.Which of these has no microcontroller inside? (a) a TV remote (b) a microwave oven (c) a washing machine (d) a wind-up toy
  10. 10.Which of these usually has a microcontroller inside? (a) a smart watch (b) a wind-up toy (c) a spinning top (d) a hand pump
  11. 11.Which job is done by the main chip? (a) shows the board is on (b) connect sensors and LEDs (c) runs the program (d) keeps the voltage steady
  12. 12.True or false: a laptop needs much more power. (a) True (b) False
  13. 13.🧭 Which part of a microcontroller board connect sensors and LEDs? (a) the power LED (b) the main chip (c) the reset button (d) the pins
  14. 14.True or false: a digital alarm clock usually has a microcontroller inside. (a) False (b) True
  15. 15.Which job is done by the pins? (a) runs the program (b) connect sensors and LEDs (c) brings power and code (d) shows the board is on
  16. 16.🤖 Microcontroller or laptop: which one has a built-in keyboard? (a) laptop (b) microcontroller
  17. 17.Which of these usually has a microcontroller inside? (a) a digital alarm clock (b) a wind-up toy (c) a hand pump (d) a spinning top
  18. 18.🤖 Does a candle usually have a microcontroller inside? (a) Yes (b) No
  19. 19.🧭 Which part of a microcontroller board keeps the voltage steady? (a) the power LED (b) the reset button (c) the voltage regulator (d) the main chip
  20. 20.True or false: a laptop uses very little power. (a) True (b) False
  21. 21.🤖 Does a spinning top usually have a microcontroller inside? (a) Yes (b) No
  22. 22.True or false: a hand pump has no microcontroller inside. (a) False (b) True
  23. 23.True or false: a hand pump usually has a microcontroller inside. (a) False (b) True
  24. 24.Which of these usually has a microcontroller inside? (a) a plain wall switch (b) a bicycle bell (c) a spinning top (d) a TV remote
  25. 25.🤖 Does a plain wall switch usually have a microcontroller inside? (a) No (b) Yes
  26. 26.🧭 Which part of a microcontroller board restarts the program? (a) the voltage regulator (b) the USB port (c) the pins (d) the reset button
  27. 27.True or false: a microcontroller uses very little power. (a) True (b) False
  28. 28.🧭 Which part of a microcontroller board shows the board is on? (a) the main chip (b) the voltage regulator (c) the reset button (d) the power LED
  29. 29.🤖 Does a washing machine usually have a microcontroller inside? (a) No (b) Yes
  30. 30.Which job is done by the voltage regulator? (a) connect sensors and LEDs (b) keeps the voltage steady (c) shows the board is on (d) restarts the program
  31. 31.🤖 How does a new program get onto a microcontroller board? (a) uploaded over USB (b) typed on the chip (c) sent by sound (d) drawn with a pen
  32. 32.🤖 Does a toy robot usually have a microcontroller inside? (a) Yes (b) No
  33. 33.True or false: a microcontroller needs much more power. (a) True (b) False
  34. 34.Which job is done by the USB port? (a) runs the program (b) connect sensors and LEDs (c) brings power and code (d) shows the board is on
  35. 35.Which of these usually has a microcontroller inside? (a) a wind-up toy (b) a hand pump (c) a microwave oven (d) a candle
  36. 36.True or false: a wind-up toy usually has a microcontroller inside. (a) False (b) True
  37. 37.🤖 Microcontroller or laptop: which one needs much more power? (a) laptop (b) microcontroller
  38. 38.🤖 Microcontroller or laptop: which one uses very little power? (a) microcontroller (b) laptop
  39. 39.Which job is done by the power LED? (a) restarts the program (b) connect sensors and LEDs (c) shows the board is on (d) runs the program
  40. 40.Which of these has no microcontroller inside? (a) a digital alarm clock (b) a smart watch (c) a spinning top (d) a TV remote

Answer key

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

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