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Electronics Worksheet: What Is a Microcontroller

Electronics lesson 21: What is a microcontroller? · Set 657 · 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.

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

Answer key

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

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