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Electronics Worksheet: What Is a Microcontroller

Electronics lesson 21: What is a microcontroller? · Set 652 · 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 has no microcontroller inside? (a) a washing machine (b) a TV remote (c) a plain wall switch (d) a microwave oven
  2. 2.True or false: a digital alarm clock usually has a microcontroller inside. (a) True (b) False
  3. 3.True or false: a microcontroller runs one small program. (a) False (b) True
  4. 4.🧭 Which part of a microcontroller board keeps the voltage steady? (a) the voltage regulator (b) the USB port (c) the reset button (d) the main chip
  5. 5.Which of these has no microcontroller inside? (a) a digital alarm clock (b) a toy robot (c) a washing machine (d) a wind-up toy
  6. 6.🤖 How does a new program get onto a microcontroller board? (a) sent by sound (b) drawn with a pen (c) uploaded over USB (d) typed on the chip
  7. 7.🤖 What is a microcontroller? (a) a big desktop computer (b) a type of battery (c) a kind of bulb (d) a computer on one chip
  8. 8.True or false: a microcontroller runs many apps at once. (a) False (b) True
  9. 9.🤖 Microcontroller or laptop: which one runs one small program? (a) laptop (b) microcontroller
  10. 10.True or false: a laptop needs much more power. (a) False (b) True
  11. 11.🤖 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
  12. 12.Which job is done by the voltage regulator? (a) runs the program (b) connect sensors and LEDs (c) keeps the voltage steady (d) brings power and code
  13. 13.Which of these usually has a microcontroller inside? (a) a wind-up toy (b) a hand pump (c) a digital thermometer (d) a spinning top
  14. 14.🤖 Does a digital thermometer usually have a microcontroller inside? (a) Yes (b) No
  15. 15.🤖 When the main loop of a microcontroller program ends, what happens? (a) it deletes itself (b) it stops forever (c) the board breaks (d) it starts again
  16. 16.Which job is done by the pins? (a) connect sensors and LEDs (b) runs the program (c) shows the board is on (d) keeps the voltage steady
  17. 17.Which of these has no microcontroller inside? (a) a digital thermometer (b) a microwave oven (c) a candle (d) a digital alarm clock
  18. 18.Which job is done by the main chip? (a) connect sensors and LEDs (b) restarts the program (c) brings power and code (d) runs the program
  19. 19.True or false: a TV remote has no microcontroller inside. (a) True (b) False
  20. 20.🧭 Which part of a microcontroller board shows the board is on? (a) the power LED (b) the voltage regulator (c) the reset button (d) the USB port
  21. 21.Which job is done by the USB port? (a) keeps the voltage steady (b) connect sensors and LEDs (c) brings power and code (d) restarts the program
  22. 22.True or false: a candle has no microcontroller inside. (a) False (b) True
  23. 23.Which job is done by the reset button? (a) connect sensors and LEDs (b) runs the program (c) restarts the program (d) brings power and code
  24. 24.Which of these has no microcontroller inside? (a) a digital thermometer (b) a microwave oven (c) a spinning top (d) a washing machine
  25. 25.🤖 Microcontroller or laptop: which one uses very little power? (a) microcontroller (b) laptop
  26. 26.Which of these usually has a microcontroller inside? (a) a spinning top (b) a microwave oven (c) a candle (d) a hand pump
  27. 27.True or false: a microwave oven has no microcontroller inside. (a) False (b) True
  28. 28.🤖 Microcontroller or laptop: which one needs much more power? (a) microcontroller (b) laptop
  29. 29.True or false: a smart watch has no microcontroller inside. (a) True (b) False
  30. 30.🤖 Microcontroller or laptop: which one has no screen of its own? (a) laptop (b) microcontroller
  31. 31.🤖 Does a washing machine usually have a microcontroller inside? (a) No (b) Yes
  32. 32.🤖 Does a candle usually have a microcontroller inside? (a) Yes (b) No
  33. 33.True or false: a microcontroller has no screen of its own. (a) True (b) False
  34. 34.🤖 Does a spinning top usually have a microcontroller inside? (a) No (b) Yes
  35. 35.True or false: a toy robot usually has a microcontroller inside. (a) True (b) False
  36. 36.Which of these usually has a microcontroller inside? (a) a hand pump (b) a plain wall switch (c) a spinning top (d) a digital alarm clock
  37. 37.True or false: a microcontroller has a built-in keyboard. (a) True (b) False
  38. 38.Which of these usually has a microcontroller inside? (a) a candle (b) a spinning top (c) a wind-up toy (d) a washing machine
  39. 39.🤖 Microcontroller or laptop: which one has a built-in keyboard? (a) laptop (b) microcontroller
  40. 40.True or false: a TV remote usually has a microcontroller inside. (a) True (b) False

Answer key

  1. a plain wall switch
  2. True
  3. True
  4. the voltage regulator
  5. a wind-up toy
  6. uploaded over USB
  7. a computer on one chip
  8. False
  9. microcontroller
  10. True
  11. USB or a 9 V battery
  12. keeps the voltage steady
  13. a digital thermometer
  14. Yes
  15. it starts again
  16. connect sensors and LEDs
  17. a candle
  18. runs the program
  19. False
  20. the power LED
  21. brings power and code
  22. True
  23. restarts the program
  24. a spinning top
  25. microcontroller
  26. a microwave oven
  27. False
  28. laptop
  29. False
  30. microcontroller
  31. Yes
  32. No
  33. True
  34. No
  35. True
  36. a digital alarm clock
  37. False
  38. a washing machine
  39. laptop
  40. True

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