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Electronics Worksheet: What Is a Microcontroller

Electronics lesson 21: What is a microcontroller? · Set 428 · 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.🤖 When the main loop of a microcontroller program ends, what happens? (a) it stops forever (b) it deletes itself (c) the board breaks (d) it starts again
  2. 2.🧭 Which part of a microcontroller board restarts the program? (a) the power LED (b) the pins (c) the reset button (d) the USB port
  3. 3.True or false: a laptop needs much more power. (a) True (b) False
  4. 4.🤖 Microcontroller or laptop: which one runs one small program? (a) microcontroller (b) laptop
  5. 5.🧭 Which part of a microcontroller board runs the program? (a) the voltage regulator (b) the main chip (c) the reset button (d) the USB port
  6. 6.Which job is done by the main chip? (a) restarts the program (b) connect sensors and LEDs (c) runs the program (d) brings power and code
  7. 7.Which job is done by the pins? (a) brings power and code (b) runs the program (c) connect sensors and LEDs (d) restarts the program
  8. 8.Which of these usually has a microcontroller inside? (a) a hand pump (b) a wind-up toy (c) a candle (d) a microwave oven
  9. 9.🤖 Does a microwave oven usually have a microcontroller inside? (a) No (b) Yes
  10. 10.🤖 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
  11. 11.True or false: a candle has no microcontroller inside. (a) False (b) True
  12. 12.Which of these usually has a microcontroller inside? (a) a digital thermometer (b) a hand pump (c) a plain wall switch (d) a wind-up toy
  13. 13.True or false: a digital alarm clock has no microcontroller inside. (a) False (b) True
  14. 14.True or false: a hand pump has no microcontroller inside. (a) False (b) True
  15. 15.Which of these has no microcontroller inside? (a) a smart watch (b) a TV remote (c) a plain wall switch (d) a microwave oven
  16. 16.🤖 Does a digital alarm clock usually have a microcontroller inside? (a) No (b) Yes
  17. 17.True or false: a laptop runs one small program. (a) False (b) True
  18. 18.🤖 How does a new program get onto a microcontroller board? (a) drawn with a pen (b) uploaded over USB (c) sent by sound (d) typed on the chip
  19. 19.🤖 Microcontroller or laptop: which one has a built-in keyboard? (a) microcontroller (b) laptop
  20. 20.True or false: a microcontroller needs much more power. (a) False (b) True
  21. 21.True or false: a microcontroller has a built-in keyboard. (a) True (b) False
  22. 22.🧭 Which part of a microcontroller board connect sensors and LEDs? (a) the main chip (b) the pins (c) the USB port (d) the power LED
  23. 23.🤖 Microcontroller or laptop: which one runs many apps at once? (a) microcontroller (b) laptop
  24. 24.True or false: a washing machine has no microcontroller inside. (a) False (b) True
  25. 25.True or false: a candle usually has a microcontroller inside. (a) True (b) False
  26. 26.Which of these has no microcontroller inside? (a) a digital thermometer (b) a candle (c) a toy robot (d) a digital alarm clock
  27. 27.True or false: a laptop has a built-in keyboard. (a) True (b) False
  28. 28.🤖 Microcontroller or laptop: which one has no screen of its own? (a) laptop (b) microcontroller
  29. 29.True or false: a laptop has no screen of its own. (a) False (b) True
  30. 30.True or false: a TV remote usually has a microcontroller inside. (a) True (b) False
  31. 31.Which of these has no microcontroller inside? (a) a digital alarm clock (b) a TV remote (c) a microwave oven (d) a spinning top
  32. 32.🤖 Microcontroller or laptop: which one uses very little power? (a) laptop (b) microcontroller
  33. 33.Which of these usually has a microcontroller inside? (a) a wind-up toy (b) a TV remote (c) a hand pump (d) a candle
  34. 34.🤖 Does a bicycle bell usually have a microcontroller inside? (a) Yes (b) No
  35. 35.Which of these usually has a microcontroller inside? (a) a bicycle bell (b) a toy robot (c) a spinning top (d) a plain wall switch
  36. 36.🤖 Does a hand pump usually have a microcontroller inside? (a) Yes (b) No
  37. 37.Which job is done by the power LED? (a) runs the program (b) keeps the voltage steady (c) restarts the program (d) shows the board is on
  38. 38.🤖 Does a digital thermometer usually have a microcontroller inside? (a) Yes (b) No
  39. 39.🤖 Does a toy robot usually have a microcontroller inside? (a) No (b) Yes
  40. 40.True or false: a microcontroller runs many apps at once. (a) False (b) True

Answer key

  1. it starts again
  2. the reset button
  3. True
  4. microcontroller
  5. the main chip
  6. runs the program
  7. connect sensors and LEDs
  8. a microwave oven
  9. Yes
  10. a computer on one chip
  11. True
  12. a digital thermometer
  13. False
  14. True
  15. a plain wall switch
  16. Yes
  17. False
  18. uploaded over USB
  19. laptop
  20. False
  21. False
  22. the pins
  23. laptop
  24. False
  25. False
  26. a candle
  27. True
  28. microcontroller
  29. False
  30. True
  31. a spinning top
  32. microcontroller
  33. a TV remote
  34. No
  35. a toy robot
  36. No
  37. shows the board is on
  38. Yes
  39. Yes
  40. False

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