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Electronics Worksheet: What Is a Microcontroller

Electronics lesson 21: What is a microcontroller? · Set 520 · 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 hand pump usually has a microcontroller inside. (a) True (b) False
  2. 2.True or false: a microcontroller runs many apps at once. (a) False (b) True
  3. 3.🧭 Which part of a microcontroller board shows the board is on? (a) the pins (b) the reset button (c) the power LED (d) the main chip
  4. 4.🤖 Does a bicycle bell usually have a microcontroller inside? (a) No (b) Yes
  5. 5.Which of these has no microcontroller inside? (a) a microwave oven (b) a hand pump (c) a TV remote (d) a toy robot
  6. 6.🤖 Microcontroller or laptop: which one uses very little power? (a) laptop (b) microcontroller
  7. 7.True or false: a TV remote has no microcontroller inside. (a) False (b) True
  8. 8.True or false: a TV remote usually has a microcontroller inside. (a) False (b) True
  9. 9.🧭 Which part of a microcontroller board connect sensors and LEDs? (a) the main chip (b) the pins (c) the reset button (d) the USB port
  10. 10.🤖 Microcontroller or laptop: which one has no screen of its own? (a) laptop (b) microcontroller
  11. 11.🤖 Microcontroller or laptop: which one has a built-in keyboard? (a) microcontroller (b) laptop
  12. 12.Which job is done by the USB port? (a) runs the program (b) brings power and code (c) restarts the program (d) shows the board is on
  13. 13.🤖 Does a hand pump usually have a microcontroller inside? (a) No (b) Yes
  14. 14.🧭 Which part of a microcontroller board restarts the program? (a) the pins (b) the USB port (c) the reset button (d) the voltage regulator
  15. 15.True or false: a microcontroller has no screen of its own. (a) True (b) False
  16. 16.Which job is done by the reset button? (a) brings power and code (b) shows the board is on (c) runs the program (d) restarts the program
  17. 17.🧭 Which part of a microcontroller board runs the program? (a) the main chip (b) the power LED (c) the USB port (d) the reset button
  18. 18.🤖 What is a microcontroller? (a) a kind of bulb (b) a type of battery (c) a big desktop computer (d) a computer on one chip
  19. 19.🤖 Which is a safe power source for a beginner microcontroller board? (a) a 230 V cable (b) bare mains wires (c) a wall socket directly (d) USB or a 9 V battery
  20. 20.True or false: a plain wall switch has no microcontroller inside. (a) False (b) True
  21. 21.🧭 Which part of a microcontroller board brings power and code? (a) the main chip (b) the pins (c) the reset button (d) the USB port
  22. 22.🤖 Does a smart watch usually have a microcontroller inside? (a) Yes (b) No
  23. 23.True or false: a microcontroller needs much more power. (a) True (b) False
  24. 24.Which job is done by the voltage regulator? (a) shows the board is on (b) runs the program (c) keeps the voltage steady (d) restarts the program
  25. 25.True or false: a laptop uses very little power. (a) True (b) False
  26. 26.Which of these usually has a microcontroller inside? (a) a bicycle bell (b) a digital alarm clock (c) a hand pump (d) a candle
  27. 27.🤖 Does a digital alarm clock usually have a microcontroller inside? (a) No (b) Yes
  28. 28.True or false: a wind-up toy usually has a microcontroller inside. (a) False (b) True
  29. 29.🤖 Does a spinning top usually have a microcontroller inside? (a) No (b) Yes
  30. 30.True or false: a digital thermometer usually has a microcontroller inside. (a) False (b) True
  31. 31.Which of these has no microcontroller inside? (a) a plain wall switch (b) a washing machine (c) a smart watch (d) a microwave oven
  32. 32.True or false: a bicycle bell usually has a microcontroller inside. (a) True (b) False
  33. 33.🤖 Does a washing machine usually have a microcontroller inside? (a) No (b) Yes
  34. 34.True or false: a smart watch has no microcontroller inside. (a) True (b) False
  35. 35.🧭 Which part of a microcontroller board keeps the voltage steady? (a) the voltage regulator (b) the reset button (c) the USB port (d) the pins
  36. 36.True or false: a laptop runs one small program. (a) True (b) False
  37. 37.Which job is done by the pins? (a) restarts the program (b) brings power and code (c) runs the program (d) connect sensors and LEDs
  38. 38.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) restarts the program
  39. 39.Which of these usually has a microcontroller inside? (a) a bicycle bell (b) a hand pump (c) a microwave oven (d) a candle
  40. 40.Which of these usually has a microcontroller inside? (a) a candle (b) a hand pump (c) a bicycle bell (d) a washing machine

Answer key

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

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