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Electronics Worksheet: What Is a Microcontroller

Electronics lesson 21: What is a microcontroller? · Set 74 · 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 needs much more power. (a) True (b) False
  2. 2.🤖 Microcontroller or laptop: which one runs many apps at once? (a) microcontroller (b) laptop
  3. 3.🤖 Does a microwave oven usually have a microcontroller inside? (a) Yes (b) No
  4. 4.True or false: a laptop has a built-in keyboard. (a) False (b) True
  5. 5.🤖 Does a digital thermometer usually have a microcontroller inside? (a) Yes (b) No
  6. 6.True or false: a digital thermometer usually has a microcontroller inside. (a) True (b) False
  7. 7.🧭 Which part of a microcontroller board restarts the program? (a) the USB port (b) the voltage regulator (c) the pins (d) the reset button
  8. 8.Which job is done by the power LED? (a) brings power and code (b) shows the board is on (c) keeps the voltage steady (d) restarts the program
  9. 9.Which job is done by the USB port? (a) brings power and code (b) shows the board is on (c) restarts the program (d) keeps the voltage steady
  10. 10.True or false: a wind-up toy has no microcontroller inside. (a) False (b) True
  11. 11.Which job is done by the voltage regulator? (a) connect sensors and LEDs (b) runs the program (c) brings power and code (d) keeps the voltage steady
  12. 12.True or false: a microcontroller has no screen of its own. (a) False (b) True
  13. 13.Which of these usually has a microcontroller inside? (a) a TV remote (b) a wind-up toy (c) a candle (d) a hand pump
  14. 14.🧭 Which part of a microcontroller board connect sensors and LEDs? (a) the voltage regulator (b) the power LED (c) the pins (d) the main chip
  15. 15.True or false: a bicycle bell usually has a microcontroller inside. (a) False (b) True
  16. 16.🤖 Which is a safe power source for a beginner microcontroller board? (a) bare mains wires (b) a 230 V cable (c) USB or a 9 V battery (d) a wall socket directly
  17. 17.🤖 Does a hand pump usually have a microcontroller inside? (a) Yes (b) No
  18. 18.True or false: a laptop runs many apps at once. (a) True (b) False
  19. 19.🤖 Does a plain wall switch usually have a microcontroller inside? (a) Yes (b) No
  20. 20.🤖 What is a microcontroller? (a) a kind of bulb (b) a big desktop computer (c) a computer on one chip (d) a type of battery
  21. 21.True or false: a wind-up toy usually has a microcontroller inside. (a) True (b) False
  22. 22.Which job is done by the reset button? (a) shows the board is on (b) restarts the program (c) brings power and code (d) connect sensors and LEDs
  23. 23.🤖 Microcontroller or laptop: which one needs much more power? (a) laptop (b) microcontroller
  24. 24.🤖 Microcontroller or laptop: which one uses very little power? (a) microcontroller (b) laptop
  25. 25.🤖 Does a candle usually have a microcontroller inside? (a) No (b) Yes
  26. 26.🧭 Which part of a microcontroller board brings power and code? (a) the voltage regulator (b) the pins (c) the power LED (d) the USB port
  27. 27.Which of these has no microcontroller inside? (a) a toy robot (b) a bicycle bell (c) a digital alarm clock (d) a washing machine
  28. 28.Which of these usually has a microcontroller inside? (a) a candle (b) a bicycle bell (c) a toy robot (d) a hand pump
  29. 29.True or false: a candle has no microcontroller inside. (a) False (b) True
  30. 30.True or false: a washing machine usually has a microcontroller inside. (a) False (b) True
  31. 31.🤖 Microcontroller or laptop: which one has no screen of its own? (a) laptop (b) microcontroller
  32. 32.Which of these usually has a microcontroller inside? (a) a spinning top (b) a candle (c) a digital thermometer (d) a bicycle bell
  33. 33.🤖 When the main loop of a microcontroller program ends, what happens? (a) it stops forever (b) it starts again (c) it deletes itself (d) the board breaks
  34. 34.🤖 Microcontroller or laptop: which one runs one small program? (a) microcontroller (b) laptop
  35. 35.Which job is done by the pins? (a) connect sensors and LEDs (b) keeps the voltage steady (c) restarts the program (d) shows the board is on
  36. 36.Which of these has no microcontroller inside? (a) a smart watch (b) a washing machine (c) a hand pump (d) a TV remote
  37. 37.🤖 Does a washing machine usually have a microcontroller inside? (a) No (b) Yes
  38. 38.True or false: a laptop uses very little power. (a) False (b) True
  39. 39.Which of these has no microcontroller inside? (a) a digital alarm clock (b) a TV remote (c) a spinning top (d) a washing machine
  40. 40.🤖 Microcontroller or laptop: which one has a built-in keyboard? (a) laptop (b) microcontroller

Answer key

  1. False
  2. laptop
  3. Yes
  4. True
  5. Yes
  6. True
  7. the reset button
  8. shows the board is on
  9. brings power and code
  10. True
  11. keeps the voltage steady
  12. True
  13. a TV remote
  14. the pins
  15. False
  16. USB or a 9 V battery
  17. No
  18. True
  19. No
  20. a computer on one chip
  21. False
  22. restarts the program
  23. laptop
  24. microcontroller
  25. No
  26. the USB port
  27. a bicycle bell
  28. a toy robot
  29. True
  30. True
  31. microcontroller
  32. a digital thermometer
  33. it starts again
  34. microcontroller
  35. connect sensors and LEDs
  36. a hand pump
  37. Yes
  38. False
  39. a spinning top
  40. laptop

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