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Electronics Worksheet: What Is a Microcontroller

Electronics lesson 21: What is a microcontroller? · Set 660 · 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.🤖 Does a hand pump usually have a microcontroller inside? (a) No (b) Yes
  2. 2.🤖 Does a TV remote usually have a microcontroller inside? (a) Yes (b) No
  3. 3.🤖 How does a new program get onto a microcontroller board? (a) uploaded over USB (b) typed on the chip (c) drawn with a pen (d) sent by sound
  4. 4.Which job is done by the pins? (a) restarts the program (b) keeps the voltage steady (c) connect sensors and LEDs (d) runs the program
  5. 5.Which job is done by the reset button? (a) keeps the voltage steady (b) shows the board is on (c) brings power and code (d) restarts the program
  6. 6.Which job is done by the power LED? (a) connect sensors and LEDs (b) shows the board is on (c) runs the program (d) keeps the voltage steady
  7. 7.🤖 Microcontroller or laptop: which one needs much more power? (a) microcontroller (b) laptop
  8. 8.Which job is done by the main chip? (a) restarts the program (b) connect sensors and LEDs (c) runs the program (d) brings power and code
  9. 9.🤖 Which is a safe power source for a beginner microcontroller board? (a) bare mains wires (b) a 230 V cable (c) USB or a 9 V battery (d) a wall socket directly
  10. 10.Which job is done by the voltage regulator? (a) runs the program (b) shows the board is on (c) keeps the voltage steady (d) brings power and code
  11. 11.Which job is done by the USB port? (a) connect sensors and LEDs (b) runs the program (c) brings power and code (d) keeps the voltage steady
  12. 12.🤖 Does a smart watch usually have a microcontroller inside? (a) Yes (b) No
  13. 13.Which of these usually has a microcontroller inside? (a) a wind-up toy (b) a smart watch (c) a bicycle bell (d) a candle
  14. 14.🤖 Microcontroller or laptop: which one has a built-in keyboard? (a) microcontroller (b) laptop
  15. 15.True or false: a TV remote usually has a microcontroller inside. (a) False (b) True
  16. 16.True or false: a toy robot has no microcontroller inside. (a) True (b) False
  17. 17.True or false: a wind-up toy usually has a microcontroller inside. (a) False (b) True
  18. 18.True or false: a microcontroller runs one small program. (a) False (b) True
  19. 19.Which of these usually has a microcontroller inside? (a) a plain wall switch (b) a hand pump (c) a digital alarm clock (d) a bicycle bell
  20. 20.Which of these usually has a microcontroller inside? (a) a TV remote (b) a wind-up toy (c) a hand pump (d) a candle
  21. 21.True or false: a microcontroller has a built-in keyboard. (a) True (b) False
  22. 22.🧭 Which part of a microcontroller board connect sensors and LEDs? (a) the reset button (b) the pins (c) the power LED (d) the USB port
  23. 23.🤖 Does a candle usually have a microcontroller inside? (a) No (b) Yes
  24. 24.Which of these has no microcontroller inside? (a) a toy robot (b) a microwave oven (c) a smart watch (d) a spinning top
  25. 25.True or false: a digital alarm clock has no microcontroller inside. (a) True (b) False
  26. 26.True or false: a wind-up toy has no microcontroller inside. (a) True (b) False
  27. 27.True or false: a laptop runs many apps at once. (a) False (b) True
  28. 28.Which of these has no microcontroller inside? (a) a TV remote (b) a wind-up toy (c) a washing machine (d) a digital thermometer
  29. 29.Which of these has no microcontroller inside? (a) a digital alarm clock (b) a digital thermometer (c) a bicycle bell (d) a smart watch
  30. 30.🤖 Microcontroller or laptop: which one has no screen of its own? (a) laptop (b) microcontroller
  31. 31.Which of these usually has a microcontroller inside? (a) a hand pump (b) a microwave oven (c) a candle (d) a plain wall switch
  32. 32.True or false: a microcontroller uses very little power. (a) False (b) True
  33. 33.Which of these usually has a microcontroller inside? (a) a wind-up toy (b) a washing machine (c) a bicycle bell (d) a candle
  34. 34.True or false: a microcontroller runs many apps at once. (a) True (b) False
  35. 35.🧭 Which part of a microcontroller board brings power and code? (a) the pins (b) the voltage regulator (c) the USB port (d) the reset button
  36. 36.True or false: a microcontroller has no screen of its own. (a) False (b) True
  37. 37.🤖 Microcontroller or laptop: which one uses very little power? (a) microcontroller (b) laptop
  38. 38.🤖 Microcontroller or laptop: which one runs one small program? (a) microcontroller (b) laptop
  39. 39.🤖 Does a bicycle bell usually have a microcontroller inside? (a) Yes (b) No
  40. 40.🤖 Microcontroller or laptop: which one runs many apps at once? (a) microcontroller (b) laptop

Answer key

  1. No
  2. Yes
  3. uploaded over USB
  4. connect sensors and LEDs
  5. restarts the program
  6. shows the board is on
  7. laptop
  8. runs the program
  9. USB or a 9 V battery
  10. keeps the voltage steady
  11. brings power and code
  12. Yes
  13. a smart watch
  14. laptop
  15. True
  16. False
  17. False
  18. True
  19. a digital alarm clock
  20. a TV remote
  21. False
  22. the pins
  23. No
  24. a spinning top
  25. False
  26. True
  27. True
  28. a wind-up toy
  29. a bicycle bell
  30. microcontroller
  31. a microwave oven
  32. True
  33. a washing machine
  34. False
  35. the USB port
  36. True
  37. microcontroller
  38. microcontroller
  39. No
  40. laptop

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