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Electronics Worksheet: What Is a Microcontroller

Electronics lesson 21: What is a microcontroller? · Set 339 · 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 usually has a microcontroller inside? (a) a microwave oven (b) a plain wall switch (c) a hand pump (d) a candle
  2. 2.🤖 Does a TV remote usually have a microcontroller inside? (a) Yes (b) No
  3. 3.Which job is done by the power LED? (a) brings power and code (b) connect sensors and LEDs (c) restarts the program (d) shows the board is on
  4. 4.🤖 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
  5. 5.🤖 Microcontroller or laptop: which one runs many apps at once? (a) laptop (b) microcontroller
  6. 6.🤖 Microcontroller or laptop: which one has a built-in keyboard? (a) microcontroller (b) laptop
  7. 7.True or false: a plain wall switch has no microcontroller inside. (a) False (b) True
  8. 8.🤖 Microcontroller or laptop: which one uses very little power? (a) microcontroller (b) laptop
  9. 9.🧭 Which part of a microcontroller board shows the board is on? (a) the voltage regulator (b) the main chip (c) the power LED (d) the USB port
  10. 10.🤖 Does a toy robot usually have a microcontroller inside? (a) No (b) Yes
  11. 11.🧭 Which part of a microcontroller board runs the program? (a) the voltage regulator (b) the reset button (c) the main chip (d) the USB port
  12. 12.True or false: a laptop uses very little power. (a) False (b) True
  13. 13.True or false: a microcontroller needs much more power. (a) False (b) True
  14. 14.Which of these usually has a microcontroller inside? (a) a plain wall switch (b) a TV remote (c) a candle (d) a bicycle bell
  15. 15.🤖 Does a microwave oven usually have a microcontroller inside? (a) No (b) Yes
  16. 16.Which of these usually has a microcontroller inside? (a) a wind-up toy (b) a smart watch (c) a candle (d) a bicycle bell
  17. 17.🤖 Microcontroller or laptop: which one has no screen of its own? (a) laptop (b) microcontroller
  18. 18.Which of these has no microcontroller inside? (a) a microwave oven (b) a toy robot (c) a hand pump (d) a digital thermometer
  19. 19.True or false: a microcontroller runs many apps at once. (a) False (b) True
  20. 20.🤖 Does a digital thermometer usually have a microcontroller inside? (a) Yes (b) No
  21. 21.True or false: a bicycle bell usually has a microcontroller inside. (a) False (b) True
  22. 22.🤖 Microcontroller or laptop: which one needs much more power? (a) laptop (b) microcontroller
  23. 23.True or false: a bicycle bell has no microcontroller inside. (a) True (b) False
  24. 24.🤖 Does a hand pump usually have a microcontroller inside? (a) Yes (b) No
  25. 25.🧭 Which part of a microcontroller board keeps the voltage steady? (a) the USB port (b) the main chip (c) the power LED (d) the voltage regulator
  26. 26.Which of these usually has a microcontroller inside? (a) a spinning top (b) a candle (c) a bicycle bell (d) a digital thermometer
  27. 27.True or false: a TV remote has no microcontroller inside. (a) True (b) False
  28. 28.🧭 Which part of a microcontroller board restarts the program? (a) the main chip (b) the reset button (c) the USB port (d) the power LED
  29. 29.🧭 Which part of a microcontroller board connect sensors and LEDs? (a) the main chip (b) the USB port (c) the pins (d) the reset button
  30. 30.🤖 Microcontroller or laptop: which one runs one small program? (a) microcontroller (b) laptop
  31. 31.True or false: a laptop runs one small program. (a) True (b) False
  32. 32.True or false: a digital thermometer usually has a microcontroller inside. (a) False (b) True
  33. 33.🤖 Does a digital alarm clock usually have a microcontroller inside? (a) Yes (b) No
  34. 34.Which of these has no microcontroller inside? (a) a candle (b) a toy robot (c) a digital thermometer (d) a washing machine
  35. 35.🧭 Which part of a microcontroller board brings power and code? (a) the voltage regulator (b) the power LED (c) the pins (d) the USB port
  36. 36.True or false: a hand pump has no microcontroller inside. (a) True (b) False
  37. 37.🤖 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
  38. 38.True or false: a TV remote usually has a microcontroller inside. (a) False (b) True
  39. 39.True or false: a candle usually has a microcontroller inside. (a) True (b) False
  40. 40.True or false: a washing machine has no microcontroller inside. (a) True (b) False

Answer key

  1. a microwave oven
  2. Yes
  3. shows the board is on
  4. it starts again
  5. laptop
  6. laptop
  7. True
  8. microcontroller
  9. the power LED
  10. Yes
  11. the main chip
  12. False
  13. False
  14. a TV remote
  15. Yes
  16. a smart watch
  17. microcontroller
  18. a hand pump
  19. False
  20. Yes
  21. False
  22. laptop
  23. True
  24. No
  25. the voltage regulator
  26. a digital thermometer
  27. False
  28. the reset button
  29. the pins
  30. microcontroller
  31. False
  32. True
  33. Yes
  34. a candle
  35. the USB port
  36. True
  37. uploaded over USB
  38. True
  39. False
  40. False

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