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Electronics Worksheet: What Is a Microcontroller

Electronics lesson 21: What is a microcontroller? · Set 309 · 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 part of a microcontroller board keeps the voltage steady? (a) the pins (b) the power LED (c) the USB port (d) the voltage regulator
  2. 2.🤖 Microcontroller or laptop: which one runs many apps at once? (a) laptop (b) microcontroller
  3. 3.Which job is done by the pins? (a) connect sensors and LEDs (b) runs the program (c) restarts the program (d) keeps the voltage steady
  4. 4.True or false: a wind-up toy usually has a microcontroller inside. (a) False (b) True
  5. 5.🤖 Microcontroller or laptop: which one has a built-in keyboard? (a) microcontroller (b) laptop
  6. 6.Which of these has no microcontroller inside? (a) a plain wall switch (b) a smart watch (c) a washing machine (d) a digital thermometer
  7. 7.🤖 Does a toy robot usually have a microcontroller inside? (a) No (b) Yes
  8. 8.🤖 When the main loop of a microcontroller program ends, what happens? (a) it deletes itself (b) it stops forever (c) it starts again (d) the board breaks
  9. 9.🤖 Does a bicycle bell usually have a microcontroller inside? (a) Yes (b) No
  10. 10.🧭 Which part of a microcontroller board runs the program? (a) the main chip (b) the USB port (c) the power LED (d) the voltage regulator
  11. 11.🤖 Does a wind-up toy usually have a microcontroller inside? (a) No (b) Yes
  12. 12.True or false: a candle has no microcontroller inside. (a) False (b) True
  13. 13.Which of these usually has a microcontroller inside? (a) a candle (b) a plain wall switch (c) a microwave oven (d) a bicycle bell
  14. 14.True or false: a digital thermometer usually has a microcontroller inside. (a) True (b) False
  15. 15.Which job is done by the main chip? (a) shows the board is on (b) runs the program (c) connect sensors and LEDs (d) brings power and code
  16. 16.True or false: a microcontroller has a built-in keyboard. (a) True (b) False
  17. 17.Which job is done by the power LED? (a) restarts the program (b) shows the board is on (c) runs the program (d) connect sensors and LEDs
  18. 18.True or false: a microcontroller runs one small program. (a) False (b) True
  19. 19.🤖 Does a digital thermometer usually have a microcontroller inside? (a) Yes (b) No
  20. 20.🤖 What is a microcontroller? (a) a type of battery (b) a big desktop computer (c) a computer on one chip (d) a kind of bulb
  21. 21.🤖 Does a plain wall switch usually have a microcontroller inside? (a) No (b) Yes
  22. 22.Which job is done by the USB port? (a) brings power and code (b) connect sensors and LEDs (c) restarts the program (d) runs the program
  23. 23.Which of these usually has a microcontroller inside? (a) a hand pump (b) a candle (c) a smart watch (d) a bicycle bell
  24. 24.🧭 Which part of a microcontroller board shows the board is on? (a) the power LED (b) the pins (c) the USB port (d) the voltage regulator
  25. 25.🤖 Microcontroller or laptop: which one uses very little power? (a) microcontroller (b) laptop
  26. 26.True or false: a laptop has a built-in keyboard. (a) True (b) False
  27. 27.Which of these usually has a microcontroller inside? (a) a wind-up toy (b) a bicycle bell (c) a toy robot (d) a candle
  28. 28.🤖 Does a hand pump usually have a microcontroller inside? (a) No (b) Yes
  29. 29.Which of these has no microcontroller inside? (a) a digital alarm clock (b) a bicycle bell (c) a toy robot (d) a TV remote
  30. 30.Which job is done by the reset button? (a) keeps the voltage steady (b) restarts the program (c) brings power and code (d) runs the program
  31. 31.🤖 Which is a safe power source for a beginner microcontroller board? (a) a 230 V cable (b) USB or a 9 V battery (c) a wall socket directly (d) bare mains wires
  32. 32.True or false: a laptop needs much more power. (a) False (b) True
  33. 33.🤖 Microcontroller or laptop: which one runs one small program? (a) microcontroller (b) laptop
  34. 34.🧭 Which part of a microcontroller board connect sensors and LEDs? (a) the pins (b) the reset button (c) the power LED (d) the USB port
  35. 35.True or false: a microcontroller runs many apps at once. (a) True (b) False
  36. 36.🤖 Microcontroller or laptop: which one has no screen of its own? (a) microcontroller (b) laptop
  37. 37.🧭 Which part of a microcontroller board restarts the program? (a) the reset button (b) the pins (c) the USB port (d) the power LED
  38. 38.Which of these has no microcontroller inside? (a) a digital alarm clock (b) a toy robot (c) a digital thermometer (d) a hand pump
  39. 39.🤖 Does a candle usually have a microcontroller inside? (a) No (b) Yes
  40. 40.🧭 Which part of a microcontroller board brings power and code? (a) the reset button (b) the pins (c) the USB port (d) the voltage regulator

Answer key

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

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