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Electronics Worksheet: What Is a Microcontroller

Electronics lesson 21: What is a microcontroller? · Set 1 · 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 hand pump has no microcontroller inside. (a) False (b) True
  2. 2.True or false: a digital alarm clock usually has a microcontroller inside. (a) True (b) False
  3. 3.True or false: a plain wall switch has no microcontroller inside. (a) True (b) False
  4. 4.True or false: a microcontroller uses very little power. (a) True (b) False
  5. 5.🤖 Microcontroller or laptop: which one has no screen of its own? (a) laptop (b) microcontroller
  6. 6.🧭 Which part of a microcontroller board brings power and code? (a) the pins (b) the reset button (c) the USB port (d) the voltage regulator
  7. 7.🤖 What is a microcontroller? (a) a big desktop computer (b) a type of battery (c) a computer on one chip (d) a kind of bulb
  8. 8.🤖 Does a digital alarm clock usually have a microcontroller inside? (a) Yes (b) No
  9. 9.Which of these has no microcontroller inside? (a) a digital thermometer (b) a washing machine (c) a spinning top (d) a toy robot
  10. 10.🧭 Which part of a microcontroller board shows the board is on? (a) the voltage regulator (b) the USB port (c) the power LED (d) the pins
  11. 11.🤖 Does a plain wall switch usually have a microcontroller inside? (a) No (b) Yes
  12. 12.🤖 Which is a safe power source for a beginner microcontroller board? (a) USB or a 9 V battery (b) a 230 V cable (c) bare mains wires (d) a wall socket directly
  13. 13.Which job is done by the reset button? (a) keeps the voltage steady (b) runs the program (c) restarts the program (d) connect sensors and LEDs
  14. 14.True or false: a laptop runs one small program. (a) False (b) True
  15. 15.Which job is done by the power LED? (a) brings power and code (b) shows the board is on (c) runs the program (d) restarts the program
  16. 16.🤖 Does a hand pump usually have a microcontroller inside? (a) No (b) Yes
  17. 17.Which job is done by the voltage regulator? (a) brings power and code (b) keeps the voltage steady (c) restarts the program (d) shows the board is on
  18. 18.🧭 Which part of a microcontroller board connect sensors and LEDs? (a) the pins (b) the voltage regulator (c) the main chip (d) the reset button
  19. 19.True or false: a smart watch usually has a microcontroller inside. (a) False (b) True
  20. 20.Which of these usually has a microcontroller inside? (a) a hand pump (b) a digital thermometer (c) a wind-up toy (d) a plain wall switch
  21. 21.True or false: a laptop needs much more power. (a) False (b) True
  22. 22.🧭 Which part of a microcontroller board runs the program? (a) the reset button (b) the USB port (c) the main chip (d) the voltage regulator
  23. 23.True or false: a microcontroller runs many apps at once. (a) True (b) False
  24. 24.Which of these has no microcontroller inside? (a) a toy robot (b) a candle (c) a digital thermometer (d) a smart watch
  25. 25.Which job is done by the USB port? (a) runs the program (b) shows the board is on (c) brings power and code (d) connect sensors and LEDs
  26. 26.🤖 Does a digital thermometer usually have a microcontroller inside? (a) No (b) Yes
  27. 27.Which of these usually has a microcontroller inside? (a) a washing machine (b) a candle (c) a wind-up toy (d) a bicycle bell
  28. 28.True or false: a toy robot has no microcontroller inside. (a) False (b) True
  29. 29.🤖 Does a microwave oven usually have a microcontroller inside? (a) Yes (b) No
  30. 30.Which of these has no microcontroller inside? (a) a microwave oven (b) a hand pump (c) a TV remote (d) a smart watch
  31. 31.True or false: a microcontroller has a built-in keyboard. (a) False (b) True
  32. 32.🤖 Does a wind-up toy usually have a microcontroller inside? (a) Yes (b) No
  33. 33.🤖 When the main loop of a microcontroller program ends, what happens? (a) the board breaks (b) it stops forever (c) it deletes itself (d) it starts again
  34. 34.🤖 Microcontroller or laptop: which one uses very little power? (a) laptop (b) microcontroller
  35. 35.🤖 Does a spinning top usually have a microcontroller inside? (a) Yes (b) No
  36. 36.🤖 Does a washing machine usually have a microcontroller inside? (a) Yes (b) No
  37. 37.True or false: a laptop runs many apps at once. (a) True (b) False
  38. 38.🤖 Does a bicycle bell usually have a microcontroller inside? (a) No (b) Yes
  39. 39.🤖 Does a TV remote usually have a microcontroller inside? (a) No (b) Yes
  40. 40.True or false: a laptop uses very little power. (a) True (b) False

Answer key

  1. True
  2. True
  3. True
  4. True
  5. microcontroller
  6. the USB port
  7. a computer on one chip
  8. Yes
  9. a spinning top
  10. the power LED
  11. No
  12. USB or a 9 V battery
  13. restarts the program
  14. False
  15. shows the board is on
  16. No
  17. keeps the voltage steady
  18. the pins
  19. True
  20. a digital thermometer
  21. True
  22. the main chip
  23. False
  24. a candle
  25. brings power and code
  26. Yes
  27. a washing machine
  28. False
  29. Yes
  30. a hand pump
  31. False
  32. No
  33. it starts again
  34. microcontroller
  35. No
  36. Yes
  37. True
  38. No
  39. Yes
  40. False

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