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Electronics Worksheet: What Is a Microcontroller

Electronics lesson 21: What is a microcontroller? · Set 726 · 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.🤖 What is a microcontroller? (a) a big desktop computer (b) a type of battery (c) a computer on one chip (d) a kind of bulb
  2. 2.Which of these usually has a microcontroller inside? (a) a hand pump (b) a spinning top (c) a smart watch (d) a candle
  3. 3.🤖 Does a toy robot usually have a microcontroller inside? (a) No (b) Yes
  4. 4.True or false: a laptop uses very little power. (a) False (b) True
  5. 5.True or false: a microwave oven usually has a microcontroller inside. (a) False (b) True
  6. 6.True or false: a microwave oven has no microcontroller inside. (a) True (b) False
  7. 7.True or false: a microcontroller uses very little power. (a) True (b) False
  8. 8.True or false: a digital thermometer has no microcontroller inside. (a) False (b) True
  9. 9.True or false: a hand pump usually has a microcontroller inside. (a) False (b) True
  10. 10.🤖 Microcontroller or laptop: which one runs many apps at once? (a) laptop (b) microcontroller
  11. 11.True or false: a microcontroller runs many apps at once. (a) True (b) False
  12. 12.Which job is done by the USB port? (a) runs the program (b) keeps the voltage steady (c) restarts the program (d) brings power and code
  13. 13.🤖 Does a hand pump usually have a microcontroller inside? (a) No (b) Yes
  14. 14.🧭 Which part of a microcontroller board keeps the voltage steady? (a) the reset button (b) the voltage regulator (c) the USB port (d) the power LED
  15. 15.🤖 Does a smart watch usually have a microcontroller inside? (a) Yes (b) No
  16. 16.True or false: a spinning top usually has a microcontroller inside. (a) False (b) True
  17. 17.🧭 Which part of a microcontroller board shows the board is on? (a) the reset button (b) the power LED (c) the USB port (d) the pins
  18. 18.True or false: a laptop runs one small program. (a) False (b) True
  19. 19.🧭 Which part of a microcontroller board connect sensors and LEDs? (a) the voltage regulator (b) the USB port (c) the pins (d) the main chip
  20. 20.🤖 When the main loop of a microcontroller program ends, what happens? (a) it deletes itself (b) it stops forever (c) the board breaks (d) it starts again
  21. 21.🤖 Microcontroller or laptop: which one uses very little power? (a) laptop (b) microcontroller
  22. 22.True or false: a candle has no microcontroller inside. (a) True (b) False
  23. 23.🤖 Microcontroller or laptop: which one runs one small program? (a) laptop (b) microcontroller
  24. 24.Which job is done by the power LED? (a) runs the program (b) connect sensors and LEDs (c) brings power and code (d) shows the board is on
  25. 25.Which job is done by the pins? (a) restarts the program (b) runs the program (c) connect sensors and LEDs (d) keeps the voltage steady
  26. 26.True or false: a digital alarm clock usually has a microcontroller inside. (a) True (b) False
  27. 27.🤖 Microcontroller or laptop: which one has no screen of its own? (a) laptop (b) microcontroller
  28. 28.🤖 Does a digital alarm clock usually have a microcontroller inside? (a) No (b) Yes
  29. 29.Which job is done by the main chip? (a) runs the program (b) connect sensors and LEDs (c) brings power and code (d) shows the board is on
  30. 30.True or false: a microcontroller needs much more power. (a) False (b) True
  31. 31.Which of these usually has a microcontroller inside? (a) a washing machine (b) a candle (c) a spinning top (d) a plain wall switch
  32. 32.True or false: a microcontroller runs one small program. (a) True (b) False
  33. 33.🤖 How does a new program get onto a microcontroller board? (a) drawn with a pen (b) typed on the chip (c) sent by sound (d) uploaded over USB
  34. 34.🤖 Does a spinning top usually have a microcontroller inside? (a) Yes (b) No
  35. 35.🤖 Does a washing machine usually have a microcontroller inside? (a) Yes (b) No
  36. 36.Which of these has no microcontroller inside? (a) a digital alarm clock (b) a candle (c) a smart watch (d) a TV remote
  37. 37.True or false: a laptop runs many apps at once. (a) False (b) True
  38. 38.Which of these has no microcontroller inside? (a) a plain wall switch (b) a microwave oven (c) a toy robot (d) a digital alarm clock
  39. 39.Which of these usually has a microcontroller inside? (a) a candle (b) a spinning top (c) a plain wall switch (d) a digital alarm clock
  40. 40.🧭 Which part of a microcontroller board restarts the program? (a) the main chip (b) the pins (c) the USB port (d) the reset button

Answer key

  1. a computer on one chip
  2. a smart watch
  3. Yes
  4. False
  5. True
  6. False
  7. True
  8. False
  9. False
  10. laptop
  11. False
  12. brings power and code
  13. No
  14. the voltage regulator
  15. Yes
  16. False
  17. the power LED
  18. False
  19. the pins
  20. it starts again
  21. microcontroller
  22. True
  23. microcontroller
  24. shows the board is on
  25. connect sensors and LEDs
  26. True
  27. microcontroller
  28. Yes
  29. runs the program
  30. False
  31. a washing machine
  32. True
  33. uploaded over USB
  34. No
  35. Yes
  36. a candle
  37. True
  38. a plain wall switch
  39. a digital alarm clock
  40. the reset button

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