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Electronics Worksheet: What Is a Microcontroller

Electronics lesson 21: What is a microcontroller? · Set 94 · 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.Which of these usually has a microcontroller inside? (a) a spinning top (b) a TV remote (c) a bicycle bell (d) a candle
  2. 2.True or false: a microcontroller has no screen of its own. (a) True (b) False
  3. 3.🧭 Which part of a microcontroller board restarts the program? (a) the USB port (b) the reset button (c) the voltage regulator (d) the pins
  4. 4.Which of these has no microcontroller inside? (a) a microwave oven (b) a bicycle bell (c) a digital thermometer (d) a washing machine
  5. 5.🧭 Which part of a microcontroller board runs the program? (a) the main chip (b) the pins (c) the voltage regulator (d) the reset button
  6. 6.True or false: a microcontroller has a built-in keyboard. (a) False (b) True
  7. 7.🤖 Does a smart watch usually have a microcontroller inside? (a) Yes (b) No
  8. 8.🧭 Which part of a microcontroller board shows the board is on? (a) the pins (b) the main chip (c) the power LED (d) the voltage regulator
  9. 9.Which of these has no microcontroller inside? (a) a TV remote (b) a toy robot (c) a wind-up toy (d) a smart watch
  10. 10.True or false: a laptop uses very little power. (a) False (b) True
  11. 11.True or false: a digital alarm clock has no microcontroller inside. (a) True (b) False
  12. 12.True or false: a spinning top has no microcontroller inside. (a) True (b) False
  13. 13.🧭 Which part of a microcontroller board connect sensors and LEDs? (a) the USB port (b) the pins (c) the main chip (d) the power LED
  14. 14.🧭 Which part of a microcontroller board brings power and code? (a) the main chip (b) the USB port (c) the pins (d) the power LED
  15. 15.True or false: a TV remote has no microcontroller inside. (a) True (b) False
  16. 16.🤖 Does a bicycle bell usually have a microcontroller inside? (a) No (b) Yes
  17. 17.True or false: a laptop needs much more power. (a) False (b) True
  18. 18.Which job is done by the power LED? (a) runs the program (b) connect sensors and LEDs (c) shows the board is on (d) keeps the voltage steady
  19. 19.🤖 Does a wind-up toy usually have a microcontroller inside? (a) No (b) Yes
  20. 20.True or false: a washing machine usually has a microcontroller inside. (a) False (b) True
  21. 21.🤖 Which is a safe power source for a beginner microcontroller board? (a) USB or a 9 V battery (b) a wall socket directly (c) bare mains wires (d) a 230 V cable
  22. 22.Which of these has no microcontroller inside? (a) a digital alarm clock (b) a plain wall switch (c) a smart watch (d) a washing machine
  23. 23.🤖 What is a microcontroller? (a) a computer on one chip (b) a big desktop computer (c) a type of battery (d) a kind of bulb
  24. 24.Which job is done by the voltage regulator? (a) shows the board is on (b) keeps the voltage steady (c) restarts the program (d) runs the program
  25. 25.True or false: a hand pump has no microcontroller inside. (a) False (b) True
  26. 26.Which job is done by the pins? (a) keeps the voltage steady (b) shows the board is on (c) connect sensors and LEDs (d) brings power and code
  27. 27.Which of these has no microcontroller inside? (a) a smart watch (b) a toy robot (c) a spinning top (d) a digital alarm clock
  28. 28.🤖 Microcontroller or laptop: which one runs one small program? (a) laptop (b) microcontroller
  29. 29.🤖 Does a washing machine usually have a microcontroller inside? (a) Yes (b) No
  30. 30.True or false: a microwave oven usually has a microcontroller inside. (a) True (b) False
  31. 31.🤖 Does a digital thermometer usually have a microcontroller inside? (a) No (b) Yes
  32. 32.True or false: a microcontroller runs many apps at once. (a) True (b) False
  33. 33.True or false: a laptop runs one small program. (a) True (b) False
  34. 34.True or false: a smart watch usually has a microcontroller inside. (a) True (b) False
  35. 35.🤖 Microcontroller or laptop: which one has a built-in keyboard? (a) microcontroller (b) laptop
  36. 36.🤖 Microcontroller or laptop: which one uses very little power? (a) laptop (b) microcontroller
  37. 37.🧭 Which part of a microcontroller board keeps the voltage steady? (a) the reset button (b) the voltage regulator (c) the power LED (d) the pins
  38. 38.🤖 Does a digital alarm clock usually have a microcontroller inside? (a) Yes (b) No
  39. 39.Which job is done by the USB port? (a) keeps the voltage steady (b) brings power and code (c) shows the board is on (d) restarts the program
  40. 40.True or false: a plain wall switch has no microcontroller inside. (a) True (b) False

Answer key

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

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