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Electronics Worksheet: What Is a Microcontroller

Electronics lesson 21: What is a microcontroller? · Set 245 · 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.True or false: a microwave oven usually has a microcontroller inside. (a) True (b) False
  2. 2.Which of these has no microcontroller inside? (a) a TV remote (b) a smart watch (c) a digital thermometer (d) a hand pump
  3. 3.Which job is done by the main chip? (a) brings power and code (b) runs the program (c) connect sensors and LEDs (d) keeps the voltage steady
  4. 4.Which job is done by the USB port? (a) connect sensors and LEDs (b) runs the program (c) brings power and code (d) shows the board is on
  5. 5.🤖 How does a new program get onto a microcontroller board? (a) drawn with a pen (b) uploaded over USB (c) typed on the chip (d) sent by sound
  6. 6.Which job is done by the reset button? (a) brings power and code (b) restarts the program (c) keeps the voltage steady (d) shows the board is on
  7. 7.🧭 Which part of a microcontroller board connect sensors and LEDs? (a) the USB port (b) the power LED (c) the reset button (d) the pins
  8. 8.True or false: a microcontroller needs much more power. (a) True (b) False
  9. 9.🤖 Microcontroller or laptop: which one runs one small program? (a) laptop (b) microcontroller
  10. 10.🤖 Does a wind-up toy usually have a microcontroller inside? (a) Yes (b) No
  11. 11.🤖 Does a digital thermometer usually have a microcontroller inside? (a) Yes (b) No
  12. 12.🤖 Microcontroller or laptop: which one has no screen of its own? (a) microcontroller (b) laptop
  13. 13.Which of these has no microcontroller inside? (a) a microwave oven (b) a smart watch (c) a TV remote (d) a candle
  14. 14.🤖 Microcontroller or laptop: which one needs much more power? (a) microcontroller (b) laptop
  15. 15.🤖 Does a digital alarm clock usually have a microcontroller inside? (a) Yes (b) No
  16. 16.🧭 Which part of a microcontroller board keeps the voltage steady? (a) the voltage regulator (b) the USB port (c) the pins (d) the main chip
  17. 17.🧭 Which part of a microcontroller board shows the board is on? (a) the pins (b) the main chip (c) the power LED (d) the voltage regulator
  18. 18.True or false: a microcontroller has no screen of its own. (a) True (b) False
  19. 19.Which job is done by the pins? (a) brings power and code (b) restarts the program (c) keeps the voltage steady (d) connect sensors and LEDs
  20. 20.🤖 Microcontroller or laptop: which one uses very little power? (a) laptop (b) microcontroller
  21. 21.🤖 Does a spinning top usually have a microcontroller inside? (a) Yes (b) No
  22. 22.Which of these has no microcontroller inside? (a) a digital thermometer (b) a microwave oven (c) a bicycle bell (d) a washing machine
  23. 23.True or false: a hand pump usually has a microcontroller inside. (a) True (b) False
  24. 24.🤖 Does a hand pump usually have a microcontroller inside? (a) No (b) Yes
  25. 25.Which of these usually has a microcontroller inside? (a) a digital alarm clock (b) a spinning top (c) a plain wall switch (d) a bicycle bell
  26. 26.🤖 What is a microcontroller? (a) a computer on one chip (b) a type of battery (c) a big desktop computer (d) a kind of bulb
  27. 27.Which of these usually has a microcontroller inside? (a) a hand pump (b) a microwave oven (c) a candle (d) a spinning top
  28. 28.True or false: a laptop runs many apps at once. (a) True (b) False
  29. 29.🤖 Does a bicycle bell usually have a microcontroller inside? (a) No (b) Yes
  30. 30.🧭 Which part of a microcontroller board brings power and code? (a) the voltage regulator (b) the reset button (c) the USB port (d) the main chip
  31. 31.Which of these has no microcontroller inside? (a) a spinning top (b) a smart watch (c) a TV remote (d) a washing machine
  32. 32.True or false: a candle usually has a microcontroller inside. (a) False (b) True
  33. 33.🧭 Which part of a microcontroller board restarts the program? (a) the reset button (b) the main chip (c) the USB port (d) the pins
  34. 34.True or false: a laptop needs much more power. (a) False (b) True
  35. 35.Which of these usually has a microcontroller inside? (a) a bicycle bell (b) a wind-up toy (c) a candle (d) a TV remote
  36. 36.True or false: a laptop runs one small program. (a) False (b) True
  37. 37.🤖 Microcontroller or laptop: which one has a built-in keyboard? (a) laptop (b) microcontroller
  38. 38.🤖 Which is a safe power source for a beginner microcontroller board? (a) bare mains wires (b) a 230 V cable (c) a wall socket directly (d) USB or a 9 V battery
  39. 39.🤖 Does a TV remote usually have a microcontroller inside? (a) Yes (b) No
  40. 40.True or false: a candle has no microcontroller inside. (a) False (b) True

Answer key

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

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