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Electronics Worksheet: What Is a Microcontroller

Electronics lesson 21: What is a microcontroller? · Set 497 · 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 connect sensors and LEDs? (a) the main chip (b) the voltage regulator (c) the pins (d) the USB port
  2. 2.True or false: a washing machine has no microcontroller inside. (a) False (b) True
  3. 3.Which of these usually has a microcontroller inside? (a) a spinning top (b) a TV remote (c) a bicycle bell (d) a plain wall switch
  4. 4.True or false: a digital thermometer has no microcontroller inside. (a) False (b) True
  5. 5.🧭 Which part of a microcontroller board restarts the program? (a) the USB port (b) the reset button (c) the main chip (d) the power LED
  6. 6.🧭 Which part of a microcontroller board keeps the voltage steady? (a) the power LED (b) the USB port (c) the voltage regulator (d) the reset button
  7. 7.🤖 Microcontroller or laptop: which one runs many apps at once? (a) microcontroller (b) laptop
  8. 8.🤖 Microcontroller or laptop: which one uses very little power? (a) laptop (b) microcontroller
  9. 9.🤖 Which is a safe power source for a beginner microcontroller board? (a) a wall socket directly (b) a 230 V cable (c) bare mains wires (d) USB or a 9 V battery
  10. 10.🤖 What is a microcontroller? (a) a kind of bulb (b) a type of battery (c) a big desktop computer (d) a computer on one chip
  11. 11.🤖 Does a candle usually have a microcontroller inside? (a) Yes (b) No
  12. 12.True or false: a digital alarm clock has no microcontroller inside. (a) True (b) False
  13. 13.Which of these has no microcontroller inside? (a) a microwave oven (b) a digital thermometer (c) a toy robot (d) a wind-up toy
  14. 14.True or false: a microcontroller has no screen of its own. (a) False (b) True
  15. 15.True or false: a digital thermometer usually has a microcontroller inside. (a) True (b) False
  16. 16.Which of these usually has a microcontroller inside? (a) a candle (b) a spinning top (c) a wind-up toy (d) a microwave oven
  17. 17.Which job is done by the pins? (a) brings power and code (b) keeps the voltage steady (c) restarts the program (d) connect sensors and LEDs
  18. 18.🤖 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
  19. 19.Which job is done by the reset button? (a) brings power and code (b) connect sensors and LEDs (c) restarts the program (d) keeps the voltage steady
  20. 20.🤖 How does a new program get onto a microcontroller board? (a) drawn with a pen (b) sent by sound (c) uploaded over USB (d) typed on the chip
  21. 21.True or false: a toy robot usually has a microcontroller inside. (a) False (b) True
  22. 22.True or false: a bicycle bell has no microcontroller inside. (a) True (b) False
  23. 23.True or false: a microcontroller has a built-in keyboard. (a) True (b) False
  24. 24.True or false: a spinning top usually has a microcontroller inside. (a) False (b) True
  25. 25.True or false: a bicycle bell usually has a microcontroller inside. (a) False (b) True
  26. 26.True or false: a candle has no microcontroller inside. (a) False (b) True
  27. 27.Which job is done by the USB port? (a) shows the board is on (b) keeps the voltage steady (c) connect sensors and LEDs (d) brings power and code
  28. 28.Which of these has no microcontroller inside? (a) a plain wall switch (b) a toy robot (c) a TV remote (d) a washing machine
  29. 29.True or false: a smart watch usually has a microcontroller inside. (a) False (b) True
  30. 30.🧭 Which part of a microcontroller board brings power and code? (a) the pins (b) the reset button (c) the power LED (d) the USB port
  31. 31.Which of these has no microcontroller inside? (a) a spinning top (b) a digital alarm clock (c) a TV remote (d) a microwave oven
  32. 32.True or false: a spinning top has no microcontroller inside. (a) True (b) False
  33. 33.🤖 Microcontroller or laptop: which one has a built-in keyboard? (a) microcontroller (b) laptop
  34. 34.True or false: a laptop has no screen of its own. (a) True (b) False
  35. 35.Which of these usually has a microcontroller inside? (a) a candle (b) a wind-up toy (c) a hand pump (d) a digital alarm clock
  36. 36.True or false: a microcontroller runs one small program. (a) False (b) True
  37. 37.🤖 Does a wind-up toy usually have a microcontroller inside? (a) No (b) Yes
  38. 38.🤖 Does a washing machine usually have a microcontroller inside? (a) Yes (b) No
  39. 39.🤖 Does a bicycle bell usually have a microcontroller inside? (a) Yes (b) No
  40. 40.True or false: a plain wall switch has no microcontroller inside. (a) True (b) False

Answer key

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

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