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Electronics Worksheet: What Is a Microcontroller

Electronics lesson 21: What is a microcontroller? · Set 150 · 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 washing machine usually has a microcontroller inside. (a) False (b) True
  2. 2.🤖 Microcontroller or laptop: which one has no screen of its own? (a) microcontroller (b) laptop
  3. 3.🧭 Which part of a microcontroller board restarts the program? (a) the power LED (b) the reset button (c) the pins (d) the voltage regulator
  4. 4.🤖 Does a wind-up toy usually have a microcontroller inside? (a) Yes (b) No
  5. 5.True or false: a plain wall switch usually has a microcontroller inside. (a) False (b) True
  6. 6.True or false: a laptop has a built-in keyboard. (a) False (b) True
  7. 7.🤖 Does a washing machine usually have a microcontroller inside? (a) No (b) Yes
  8. 8.🤖 Does a microwave oven usually have a microcontroller inside? (a) Yes (b) No
  9. 9.Which job is done by the pins? (a) connect sensors and LEDs (b) restarts the program (c) runs the program (d) brings power and code
  10. 10.Which job is done by the USB port? (a) restarts the program (b) shows the board is on (c) connect sensors and LEDs (d) brings power and code
  11. 11.🤖 Microcontroller or laptop: which one runs one small program? (a) laptop (b) microcontroller
  12. 12.True or false: a digital alarm clock usually has a microcontroller inside. (a) False (b) True
  13. 13.Which of these has no microcontroller inside? (a) a toy robot (b) a digital alarm clock (c) a microwave oven (d) a hand pump
  14. 14.Which of these has no microcontroller inside? (a) a washing machine (b) a TV remote (c) a microwave oven (d) a candle
  15. 15.True or false: a microcontroller needs much more power. (a) False (b) True
  16. 16.🧭 Which part of a microcontroller board runs the program? (a) the pins (b) the USB port (c) the reset button (d) the main chip
  17. 17.Which job is done by the power LED? (a) keeps the voltage steady (b) brings power and code (c) restarts the program (d) shows the board is on
  18. 18.🧭 Which part of a microcontroller board shows the board is on? (a) the voltage regulator (b) the pins (c) the USB port (d) the power LED
  19. 19.🤖 When the main loop of a microcontroller program ends, what happens? (a) it starts again (b) it deletes itself (c) the board breaks (d) it stops forever
  20. 20.🤖 Microcontroller or laptop: which one runs many apps at once? (a) microcontroller (b) laptop
  21. 21.True or false: a plain wall switch has no microcontroller inside. (a) False (b) True
  22. 22.Which of these usually has a microcontroller inside? (a) a plain wall switch (b) a smart watch (c) a candle (d) a spinning top
  23. 23.True or false: a candle usually has a microcontroller inside. (a) False (b) True
  24. 24.🤖 Does a digital thermometer usually have a microcontroller inside? (a) Yes (b) No
  25. 25.True or false: a laptop runs many apps at once. (a) False (b) True
  26. 26.Which job is done by the main chip? (a) brings power and code (b) runs the program (c) connect sensors and LEDs (d) restarts the program
  27. 27.True or false: a microcontroller runs one small program. (a) True (b) False
  28. 28.🤖 Microcontroller or laptop: which one needs much more power? (a) laptop (b) microcontroller
  29. 29.🧭 Which part of a microcontroller board brings power and code? (a) the voltage regulator (b) the main chip (c) the power LED (d) the USB port
  30. 30.True or false: a laptop has no screen of its own. (a) False (b) True
  31. 31.True or false: a digital thermometer usually has a microcontroller inside. (a) True (b) False
  32. 32.🤖 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
  33. 33.Which of these usually has a microcontroller inside? (a) a hand pump (b) a wind-up toy (c) a bicycle bell (d) a TV remote
  34. 34.Which of these has no microcontroller inside? (a) a TV remote (b) a bicycle bell (c) a washing machine (d) a microwave oven
  35. 35.🤖 Microcontroller or laptop: which one uses very little power? (a) microcontroller (b) laptop
  36. 36.Which of these usually has a microcontroller inside? (a) a candle (b) a bicycle bell (c) a spinning top (d) a microwave oven
  37. 37.🧭 Which part of a microcontroller board connect sensors and LEDs? (a) the main chip (b) the USB port (c) the pins (d) the reset button
  38. 38.True or false: a microcontroller uses very little power. (a) False (b) True
  39. 39.🤖 Microcontroller or laptop: which one has a built-in keyboard? (a) microcontroller (b) laptop
  40. 40.🤖 What is a microcontroller? (a) a big desktop computer (b) a computer on one chip (c) a kind of bulb (d) a type of battery

Answer key

  1. True
  2. microcontroller
  3. the reset button
  4. No
  5. False
  6. True
  7. Yes
  8. Yes
  9. connect sensors and LEDs
  10. brings power and code
  11. microcontroller
  12. True
  13. a hand pump
  14. a candle
  15. False
  16. the main chip
  17. shows the board is on
  18. the power LED
  19. it starts again
  20. laptop
  21. True
  22. a smart watch
  23. False
  24. Yes
  25. True
  26. runs the program
  27. True
  28. laptop
  29. the USB port
  30. False
  31. True
  32. uploaded over USB
  33. a TV remote
  34. a bicycle bell
  35. microcontroller
  36. a microwave oven
  37. the pins
  38. True
  39. laptop
  40. a computer on one chip

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