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Electronics Worksheet: What Is a Microcontroller

Electronics lesson 21: What is a microcontroller? · Set 362 · 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.Which of these has no microcontroller inside? (a) a TV remote (b) a digital alarm clock (c) a spinning top (d) a microwave oven
  2. 2.🧭 Which part of a microcontroller board brings power and code? (a) the voltage regulator (b) the USB port (c) the reset button (d) the main chip
  3. 3.True or false: a microcontroller runs many apps at once. (a) True (b) False
  4. 4.🤖 Does a TV remote usually have a microcontroller inside? (a) No (b) Yes
  5. 5.🤖 Microcontroller or laptop: which one uses very little power? (a) microcontroller (b) laptop
  6. 6.🤖 Microcontroller or laptop: which one runs one small program? (a) laptop (b) microcontroller
  7. 7.Which job is done by the reset button? (a) keeps the voltage steady (b) brings power and code (c) runs the program (d) restarts the program
  8. 8.🧭 Which part of a microcontroller board keeps the voltage steady? (a) the power LED (b) the main chip (c) the voltage regulator (d) the reset button
  9. 9.🤖 Microcontroller or laptop: which one needs much more power? (a) microcontroller (b) laptop
  10. 10.Which job is done by the voltage regulator? (a) runs the program (b) connect sensors and LEDs (c) restarts the program (d) keeps the voltage steady
  11. 11.🧭 Which part of a microcontroller board runs the program? (a) the reset button (b) the voltage regulator (c) the USB port (d) the main chip
  12. 12.Which of these usually has a microcontroller inside? (a) a bicycle bell (b) a spinning top (c) a wind-up toy (d) a digital alarm clock
  13. 13.True or false: a digital alarm clock usually has a microcontroller inside. (a) False (b) True
  14. 14.🤖 Microcontroller or laptop: which one has a built-in keyboard? (a) microcontroller (b) laptop
  15. 15.🤖 Microcontroller or laptop: which one runs many apps at once? (a) laptop (b) microcontroller
  16. 16.🧭 Which part of a microcontroller board restarts the program? (a) the voltage regulator (b) the power LED (c) the reset button (d) the main chip
  17. 17.🤖 Does a spinning top usually have a microcontroller inside? (a) Yes (b) No
  18. 18.🤖 Does a microwave oven usually have a microcontroller inside? (a) No (b) Yes
  19. 19.True or false: a microwave oven has no microcontroller inside. (a) True (b) False
  20. 20.🤖 Does a hand pump usually have a microcontroller inside? (a) No (b) Yes
  21. 21.🤖 When the main loop of a microcontroller program ends, what happens? (a) the board breaks (b) it starts again (c) it stops forever (d) it deletes itself
  22. 22.True or false: a bicycle bell has no microcontroller inside. (a) True (b) False
  23. 23.🤖 What is a microcontroller? (a) a computer on one chip (b) a big desktop computer (c) a kind of bulb (d) a type of battery
  24. 24.Which job is done by the power LED? (a) keeps the voltage steady (b) connect sensors and LEDs (c) runs the program (d) shows the board is on
  25. 25.True or false: a washing machine usually has a microcontroller inside. (a) False (b) True
  26. 26.True or false: a wind-up toy usually has a microcontroller inside. (a) False (b) True
  27. 27.True or false: a laptop runs one small program. (a) False (b) True
  28. 28.True or false: a microcontroller needs much more power. (a) False (b) True
  29. 29.Which job is done by the main chip? (a) restarts the program (b) runs the program (c) brings power and code (d) connect sensors and LEDs
  30. 30.True or false: a microcontroller uses very little power. (a) True (b) False
  31. 31.Which of these usually has a microcontroller inside? (a) a plain wall switch (b) a wind-up toy (c) a smart watch (d) a hand pump
  32. 32.Which of these usually has a microcontroller inside? (a) a hand pump (b) a candle (c) a toy robot (d) a spinning top
  33. 33.Which of these usually has a microcontroller inside? (a) a spinning top (b) a candle (c) a washing machine (d) a hand pump
  34. 34.🧭 Which part of a microcontroller board connect sensors and LEDs? (a) the pins (b) the main chip (c) the voltage regulator (d) the power LED
  35. 35.🤖 Does a smart watch usually have a microcontroller inside? (a) No (b) Yes
  36. 36.Which of these has no microcontroller inside? (a) a washing machine (b) a digital thermometer (c) a hand pump (d) a TV remote
  37. 37.Which of these has no microcontroller inside? (a) a digital alarm clock (b) a microwave oven (c) a TV remote (d) a candle
  38. 38.🤖 How does a new program get onto a microcontroller board? (a) sent by sound (b) uploaded over USB (c) drawn with a pen (d) typed on the chip
  39. 39.🧭 Which part of a microcontroller board shows the board is on? (a) the power LED (b) the voltage regulator (c) the USB port (d) the main chip
  40. 40.True or false: a microcontroller runs one small program. (a) False (b) True

Answer key

  1. a spinning top
  2. the USB port
  3. False
  4. Yes
  5. microcontroller
  6. microcontroller
  7. restarts the program
  8. the voltage regulator
  9. laptop
  10. keeps the voltage steady
  11. the main chip
  12. a digital alarm clock
  13. True
  14. laptop
  15. laptop
  16. the reset button
  17. No
  18. Yes
  19. False
  20. No
  21. it starts again
  22. True
  23. a computer on one chip
  24. shows the board is on
  25. True
  26. False
  27. False
  28. False
  29. runs the program
  30. True
  31. a smart watch
  32. a toy robot
  33. a washing machine
  34. the pins
  35. Yes
  36. a hand pump
  37. a candle
  38. uploaded over USB
  39. the power LED
  40. True

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