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Electronics Worksheet: What Is a Microcontroller

Electronics lesson 21: What is a microcontroller? · Set 256 · 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 microcontroller uses very little power. (a) True (b) False
  2. 2.Which of these has no microcontroller inside? (a) a toy robot (b) a digital thermometer (c) a microwave oven (d) a plain wall switch
  3. 3.Which of these usually has a microcontroller inside? (a) a washing machine (b) a wind-up toy (c) a hand pump (d) a plain wall switch
  4. 4.True or false: a spinning top has no microcontroller inside. (a) False (b) True
  5. 5.🧭 Which part of a microcontroller board runs the program? (a) the USB port (b) the main chip (c) the power LED (d) the voltage regulator
  6. 6.🤖 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
  7. 7.Which of these usually has a microcontroller inside? (a) a wind-up toy (b) a toy robot (c) a spinning top (d) a bicycle bell
  8. 8.Which job is done by the voltage regulator? (a) brings power and code (b) shows the board is on (c) keeps the voltage steady (d) connect sensors and LEDs
  9. 9.Which of these has no microcontroller inside? (a) a TV remote (b) a washing machine (c) a microwave oven (d) a hand pump
  10. 10.Which of these has no microcontroller inside? (a) a TV remote (b) a digital alarm clock (c) a digital thermometer (d) a bicycle bell
  11. 11.🤖 Does a digital thermometer usually have a microcontroller inside? (a) No (b) Yes
  12. 12.🤖 Microcontroller or laptop: which one uses very little power? (a) microcontroller (b) laptop
  13. 13.True or false: a toy robot has no microcontroller inside. (a) True (b) False
  14. 14.🤖 What is a microcontroller? (a) a big desktop computer (b) a computer on one chip (c) a type of battery (d) a kind of bulb
  15. 15.🤖 Does a washing machine usually have a microcontroller inside? (a) Yes (b) No
  16. 16.True or false: a microcontroller has no screen of its own. (a) False (b) True
  17. 17.True or false: a digital thermometer usually has a microcontroller inside. (a) True (b) False
  18. 18.True or false: a wind-up toy has no microcontroller inside. (a) False (b) True
  19. 19.True or false: a TV remote has no microcontroller inside. (a) True (b) False
  20. 20.🤖 Microcontroller or laptop: which one runs one small program? (a) microcontroller (b) laptop
  21. 21.True or false: a microcontroller runs many apps at once. (a) True (b) False
  22. 22.🧭 Which part of a microcontroller board shows the board is on? (a) the reset button (b) the voltage regulator (c) the power LED (d) the USB port
  23. 23.Which of these has no microcontroller inside? (a) a smart watch (b) a microwave oven (c) a spinning top (d) a toy robot
  24. 24.🧭 Which part of a microcontroller board brings power and code? (a) the power LED (b) the reset button (c) the pins (d) the USB port
  25. 25.Which job is done by the reset button? (a) keeps the voltage steady (b) connect sensors and LEDs (c) restarts the program (d) brings power and code
  26. 26.🤖 Microcontroller or laptop: which one needs much more power? (a) laptop (b) microcontroller
  27. 27.Which job is done by the main chip? (a) brings power and code (b) runs the program (c) connect sensors and LEDs (d) shows the board is on
  28. 28.🤖 Microcontroller or laptop: which one has no screen of its own? (a) laptop (b) microcontroller
  29. 29.True or false: a microwave oven usually has a microcontroller inside. (a) True (b) False
  30. 30.Which of these usually has a microcontroller inside? (a) a hand pump (b) a bicycle bell (c) a digital thermometer (d) a candle
  31. 31.🤖 Microcontroller or laptop: which one runs many apps at once? (a) laptop (b) microcontroller
  32. 32.Which job is done by the pins? (a) brings power and code (b) runs the program (c) connect sensors and LEDs (d) shows the board is on
  33. 33.True or false: a laptop has a built-in keyboard. (a) False (b) True
  34. 34.🧭 Which part of a microcontroller board restarts the program? (a) the voltage regulator (b) the main chip (c) the reset button (d) the USB port
  35. 35.🤖 Microcontroller or laptop: which one has a built-in keyboard? (a) microcontroller (b) laptop
  36. 36.🤖 Does a wind-up toy usually have a microcontroller inside? (a) No (b) Yes
  37. 37.True or false: a laptop needs much more power. (a) False (b) True
  38. 38.True or false: a candle has no microcontroller inside. (a) False (b) True
  39. 39.Which of these has no microcontroller inside? (a) a digital alarm clock (b) a digital thermometer (c) a microwave oven (d) a wind-up toy
  40. 40.🤖 Does a hand pump usually have a microcontroller inside? (a) No (b) Yes

Answer key

  1. True
  2. a plain wall switch
  3. a washing machine
  4. True
  5. the main chip
  6. USB or a 9 V battery
  7. a toy robot
  8. keeps the voltage steady
  9. a hand pump
  10. a bicycle bell
  11. Yes
  12. microcontroller
  13. False
  14. a computer on one chip
  15. Yes
  16. True
  17. True
  18. True
  19. False
  20. microcontroller
  21. False
  22. the power LED
  23. a spinning top
  24. the USB port
  25. restarts the program
  26. laptop
  27. runs the program
  28. microcontroller
  29. True
  30. a digital thermometer
  31. laptop
  32. connect sensors and LEDs
  33. True
  34. the reset button
  35. laptop
  36. No
  37. True
  38. True
  39. a wind-up toy
  40. No

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