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Electronics Worksheet: What Is a Microcontroller

Electronics lesson 21: What is a microcontroller? · Set 404 · 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.🤖 Microcontroller or laptop: which one needs much more power? (a) microcontroller (b) laptop
  2. 2.True or false: a washing machine usually has a microcontroller inside. (a) True (b) False
  3. 3.🧭 Which part of a microcontroller board restarts the program? (a) the reset button (b) the pins (c) the main chip (d) the power LED
  4. 4.True or false: a digital alarm clock has no microcontroller inside. (a) False (b) True
  5. 5.Which of these usually has a microcontroller inside? (a) a hand pump (b) a candle (c) a bicycle bell (d) a TV remote
  6. 6.🤖 Microcontroller or laptop: which one runs one small program? (a) laptop (b) microcontroller
  7. 7.Which of these has no microcontroller inside? (a) a washing machine (b) a microwave oven (c) a bicycle bell (d) a TV remote
  8. 8.Which job is done by the pins? (a) shows the board is on (b) restarts the program (c) brings power and code (d) connect sensors and LEDs
  9. 9.🤖 Does a bicycle bell usually have a microcontroller inside? (a) No (b) Yes
  10. 10.True or false: a bicycle bell has no microcontroller inside. (a) False (b) True
  11. 11.🤖 Does a candle usually have a microcontroller inside? (a) No (b) Yes
  12. 12.True or false: a microcontroller uses very little power. (a) False (b) True
  13. 13.🤖 Which is a safe power source for a beginner microcontroller board? (a) a wall socket directly (b) USB or a 9 V battery (c) bare mains wires (d) a 230 V cable
  14. 14.🤖 Microcontroller or laptop: which one runs many apps at once? (a) microcontroller (b) laptop
  15. 15.True or false: a hand pump has no microcontroller inside. (a) False (b) True
  16. 16.True or false: a laptop uses very little power. (a) True (b) False
  17. 17.Which job is done by the reset button? (a) shows the board is on (b) restarts the program (c) runs the program (d) connect sensors and LEDs
  18. 18.Which job is done by the power LED? (a) runs the program (b) brings power and code (c) restarts the program (d) shows the board is on
  19. 19.True or false: a digital alarm clock usually has a microcontroller inside. (a) False (b) True
  20. 20.🤖 Does a TV remote usually have a microcontroller inside? (a) Yes (b) No
  21. 21.True or false: a spinning top usually has a microcontroller inside. (a) False (b) True
  22. 22.🤖 Does a wind-up toy usually have a microcontroller inside? (a) Yes (b) No
  23. 23.🧭 Which part of a microcontroller board brings power and code? (a) the power LED (b) the USB port (c) the reset button (d) the main chip
  24. 24.🤖 Microcontroller or laptop: which one uses very little power? (a) laptop (b) microcontroller
  25. 25.🤖 Does a microwave oven usually have a microcontroller inside? (a) Yes (b) No
  26. 26.🧭 Which part of a microcontroller board runs the program? (a) the voltage regulator (b) the USB port (c) the power LED (d) the main chip
  27. 27.True or false: a smart watch usually has a microcontroller inside. (a) True (b) False
  28. 28.🧭 Which part of a microcontroller board keeps the voltage steady? (a) the main chip (b) the USB port (c) the voltage regulator (d) the pins
  29. 29.Which job is done by the USB port? (a) runs the program (b) connect sensors and LEDs (c) restarts the program (d) brings power and code
  30. 30.🤖 Microcontroller or laptop: which one has no screen of its own? (a) laptop (b) microcontroller
  31. 31.🤖 What is a microcontroller? (a) a big desktop computer (b) a computer on one chip (c) a kind of bulb (d) a type of battery
  32. 32.True or false: a digital thermometer has no microcontroller inside. (a) True (b) False
  33. 33.True or false: a microcontroller has a built-in keyboard. (a) False (b) True
  34. 34.True or false: a laptop runs one small program. (a) True (b) False
  35. 35.🧭 Which part of a microcontroller board connect sensors and LEDs? (a) the power LED (b) the pins (c) the main chip (d) the USB port
  36. 36.Which of these usually has a microcontroller inside? (a) a microwave oven (b) a wind-up toy (c) a plain wall switch (d) a hand pump
  37. 37.True or false: a microcontroller needs much more power. (a) True (b) False
  38. 38.Which of these usually has a microcontroller inside? (a) a digital thermometer (b) a plain wall switch (c) a bicycle bell (d) a candle
  39. 39.True or false: a candle usually has a microcontroller inside. (a) False (b) True
  40. 40.Which job is done by the voltage regulator? (a) keeps the voltage steady (b) restarts the program (c) brings power and code (d) runs the program

Answer key

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

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