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Electronics Worksheet: What Is a Microcontroller

Electronics lesson 21: What is a microcontroller? · Set 366 · 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 microcontroller has no screen of its own. (a) False (b) True
  2. 2.Which job is done by the power LED? (a) keeps the voltage steady (b) connect sensors and LEDs (c) shows the board is on (d) brings power and code
  3. 3.🧭 Which part of a microcontroller board connect sensors and LEDs? (a) the voltage regulator (b) the power LED (c) the pins (d) the reset button
  4. 4.🤖 Microcontroller or laptop: which one runs one small program? (a) laptop (b) microcontroller
  5. 5.Which job is done by the voltage regulator? (a) brings power and code (b) runs the program (c) keeps the voltage steady (d) restarts the program
  6. 6.🤖 How does a new program get onto a microcontroller board? (a) drawn with a pen (b) uploaded over USB (c) typed on the chip (d) sent by sound
  7. 7.Which job is done by the pins? (a) restarts the program (b) keeps the voltage steady (c) connect sensors and LEDs (d) runs the program
  8. 8.🧭 Which part of a microcontroller board runs the program? (a) the main chip (b) the USB port (c) the voltage regulator (d) the power LED
  9. 9.🤖 Does a candle usually have a microcontroller inside? (a) Yes (b) No
  10. 10.🧭 Which part of a microcontroller board brings power and code? (a) the USB port (b) the voltage regulator (c) the reset button (d) the power LED
  11. 11.Which of these usually has a microcontroller inside? (a) a plain wall switch (b) a wind-up toy (c) a digital thermometer (d) a candle
  12. 12.🧭 Which part of a microcontroller board restarts the program? (a) the pins (b) the reset button (c) the main chip (d) the power LED
  13. 13.True or false: a laptop runs many apps at once. (a) False (b) True
  14. 14.True or false: a digital thermometer usually has a microcontroller inside. (a) True (b) False
  15. 15.True or false: a wind-up toy has no microcontroller inside. (a) False (b) True
  16. 16.🤖 Does a washing machine usually have a microcontroller inside? (a) Yes (b) No
  17. 17.Which job is done by the USB port? (a) connect sensors and LEDs (b) restarts the program (c) brings power and code (d) keeps the voltage steady
  18. 18.True or false: a microcontroller uses very little power. (a) True (b) False
  19. 19.🤖 Does a hand pump usually have a microcontroller inside? (a) Yes (b) No
  20. 20.Which job is done by the main chip? (a) restarts the program (b) connect sensors and LEDs (c) runs the program (d) keeps the voltage steady
  21. 21.True or false: a digital thermometer has no microcontroller inside. (a) False (b) True
  22. 22.Which of these usually has a microcontroller inside? (a) a candle (b) a wind-up toy (c) a hand pump (d) a toy robot
  23. 23.🤖 Does a microwave oven usually have a microcontroller inside? (a) No (b) Yes
  24. 24.True or false: a candle usually has a microcontroller inside. (a) True (b) False
  25. 25.🤖 What is a microcontroller? (a) a big desktop computer (b) a kind of bulb (c) a type of battery (d) a computer on one chip
  26. 26.True or false: a microcontroller has a built-in keyboard. (a) True (b) False
  27. 27.True or false: a spinning top has no microcontroller inside. (a) False (b) True
  28. 28.Which of these has no microcontroller inside? (a) a washing machine (b) a toy robot (c) a plain wall switch (d) a TV remote
  29. 29.🤖 Microcontroller or laptop: which one uses very little power? (a) microcontroller (b) laptop
  30. 30.🤖 Does a digital alarm clock usually have a microcontroller inside? (a) No (b) Yes
  31. 31.Which of these usually has a microcontroller inside? (a) a candle (b) a bicycle bell (c) a microwave oven (d) a hand pump
  32. 32.True or false: a plain wall switch usually has a microcontroller inside. (a) False (b) True
  33. 33.🤖 Does a digital thermometer usually have a microcontroller inside? (a) No (b) Yes
  34. 34.True or false: a laptop runs one small program. (a) True (b) False
  35. 35.🤖 Microcontroller or laptop: which one has no screen of its own? (a) laptop (b) microcontroller
  36. 36.True or false: a spinning top usually has a microcontroller inside. (a) False (b) True
  37. 37.True or false: a microcontroller runs one small program. (a) True (b) False
  38. 38.True or false: a microwave oven usually has a microcontroller inside. (a) False (b) True
  39. 39.True or false: a microcontroller runs many apps at once. (a) True (b) False
  40. 40.True or false: a laptop needs much more power. (a) True (b) False

Answer key

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

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