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Electronics Worksheet: What Is a Microcontroller

Electronics lesson 21: What is a microcontroller? · Set 243 · 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 plain wall switch (b) a candle (c) a washing machine (d) a bicycle bell
  2. 2.True or false: a smart watch has no microcontroller inside. (a) False (b) True
  3. 3.🧭 Which part of a microcontroller board restarts the program? (a) the voltage regulator (b) the power LED (c) the pins (d) the reset button
  4. 4.Which of these usually has a microcontroller inside? (a) a bicycle bell (b) a microwave oven (c) a candle (d) a plain wall switch
  5. 5.🤖 Microcontroller or laptop: which one has a built-in keyboard? (a) laptop (b) microcontroller
  6. 6.🤖 Does a TV remote usually have a microcontroller inside? (a) Yes (b) No
  7. 7.Which of these usually has a microcontroller inside? (a) a plain wall switch (b) a wind-up toy (c) a bicycle bell (d) a digital alarm clock
  8. 8.Which of these usually has a microcontroller inside? (a) a TV remote (b) a bicycle bell (c) a spinning top (d) a wind-up toy
  9. 9.🤖 Microcontroller or laptop: which one uses very little power? (a) microcontroller (b) laptop
  10. 10.True or false: a microcontroller uses very little power. (a) True (b) False
  11. 11.🧭 Which part of a microcontroller board connect sensors and LEDs? (a) the power LED (b) the pins (c) the USB port (d) the reset button
  12. 12.🤖 Does a washing machine usually have a microcontroller inside? (a) No (b) Yes
  13. 13.Which of these has no microcontroller inside? (a) a toy robot (b) a smart watch (c) a bicycle bell (d) a digital thermometer
  14. 14.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
  15. 15.True or false: a candle usually has a microcontroller inside. (a) True (b) False
  16. 16.Which of these has no microcontroller inside? (a) a digital thermometer (b) a toy robot (c) a digital alarm clock (d) a candle
  17. 17.True or false: a microcontroller has no screen of its own. (a) False (b) True
  18. 18.🤖 Does a digital thermometer usually have a microcontroller inside? (a) Yes (b) No
  19. 19.🤖 Does a bicycle bell usually have a microcontroller inside? (a) Yes (b) No
  20. 20.🤖 Does a smart watch usually have a microcontroller inside? (a) No (b) Yes
  21. 21.🧭 Which part of a microcontroller board shows the board is on? (a) the pins (b) the reset button (c) the main chip (d) the power LED
  22. 22.Which of these has no microcontroller inside? (a) a microwave oven (b) a wind-up toy (c) a TV remote (d) a smart watch
  23. 23.True or false: a laptop needs much more power. (a) True (b) False
  24. 24.True or false: a washing machine usually has a microcontroller inside. (a) True (b) False
  25. 25.Which of these usually has a microcontroller inside? (a) a hand pump (b) a bicycle bell (c) a digital thermometer (d) a candle
  26. 26.🤖 Microcontroller or laptop: which one needs much more power? (a) laptop (b) microcontroller
  27. 27.🤖 Does a digital alarm clock usually have a microcontroller inside? (a) Yes (b) No
  28. 28.🤖 Does a spinning top usually have a microcontroller inside? (a) No (b) Yes
  29. 29.True or false: a microwave oven usually has a microcontroller inside. (a) True (b) False
  30. 30.🧭 Which part of a microcontroller board runs the program? (a) the main chip (b) the reset button (c) the power LED (d) the pins
  31. 31.True or false: a toy robot has no microcontroller inside. (a) False (b) True
  32. 32.🤖 What is a microcontroller? (a) a big desktop computer (b) a kind of bulb (c) a computer on one chip (d) a type of battery
  33. 33.🤖 Which is a safe power source for a beginner microcontroller board? (a) USB or a 9 V battery (b) a wall socket directly (c) bare mains wires (d) a 230 V cable
  34. 34.Which of these has no microcontroller inside? (a) a microwave oven (b) a TV remote (c) a hand pump (d) a washing machine
  35. 35.🤖 Does a wind-up toy usually have a microcontroller inside? (a) No (b) Yes
  36. 36.Which job is done by the pins? (a) brings power and code (b) keeps the voltage steady (c) shows the board is on (d) connect sensors and LEDs
  37. 37.🤖 Microcontroller or laptop: which one has no screen of its own? (a) microcontroller (b) laptop
  38. 38.🤖 How does a new program get onto a microcontroller board? (a) typed on the chip (b) drawn with a pen (c) uploaded over USB (d) sent by sound
  39. 39.🤖 Does a microwave oven usually have a microcontroller inside? (a) No (b) Yes
  40. 40.🧭 Which part of a microcontroller board brings power and code? (a) the USB port (b) the main chip (c) the pins (d) the power LED

Answer key

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

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