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Electronics Worksheet: What Is a Microcontroller

Electronics lesson 21: What is a microcontroller? · Set 282 · 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 part of a microcontroller board brings power and code? (a) the power LED (b) the main chip (c) the USB port (d) the voltage regulator
  2. 2.🤖 Does a toy robot usually have a microcontroller inside? (a) No (b) Yes
  3. 3.True or false: a wind-up toy usually has a microcontroller inside. (a) True (b) False
  4. 4.🤖 Microcontroller or laptop: which one runs one small program? (a) microcontroller (b) laptop
  5. 5.🤖 What is a microcontroller? (a) a computer on one chip (b) a kind of bulb (c) a big desktop computer (d) a type of battery
  6. 6.🤖 Does a bicycle bell usually have a microcontroller inside? (a) No (b) Yes
  7. 7.🧭 Which part of a microcontroller board keeps the voltage steady? (a) the power LED (b) the USB port (c) the reset button (d) the voltage regulator
  8. 8.🧭 Which part of a microcontroller board runs the program? (a) the voltage regulator (b) the USB port (c) the pins (d) the main chip
  9. 9.🤖 Which is a safe power source for a beginner microcontroller board? (a) a wall socket directly (b) bare mains wires (c) USB or a 9 V battery (d) a 230 V cable
  10. 10.Which job is done by the reset button? (a) shows the board is on (b) brings power and code (c) restarts the program (d) connect sensors and LEDs
  11. 11.🤖 Microcontroller or laptop: which one has no screen of its own? (a) laptop (b) microcontroller
  12. 12.True or false: a plain wall switch has no microcontroller inside. (a) False (b) True
  13. 13.🤖 How does a new program get onto a microcontroller board? (a) sent by sound (b) uploaded over USB (c) typed on the chip (d) drawn with a pen
  14. 14.🤖 Microcontroller or laptop: which one has a built-in keyboard? (a) laptop (b) microcontroller
  15. 15.🧭 Which part of a microcontroller board connect sensors and LEDs? (a) the voltage regulator (b) the main chip (c) the pins (d) the reset button
  16. 16.Which of these usually has a microcontroller inside? (a) a candle (b) a hand pump (c) a bicycle bell (d) a digital alarm clock
  17. 17.True or false: a candle has no microcontroller inside. (a) True (b) False
  18. 18.🤖 Does a plain wall switch usually have a microcontroller inside? (a) Yes (b) No
  19. 19.🧭 Which part of a microcontroller board shows the board is on? (a) the power LED (b) the reset button (c) the pins (d) the USB port
  20. 20.🤖 When the main loop of a microcontroller program ends, what happens? (a) it starts again (b) it stops forever (c) the board breaks (d) it deletes itself
  21. 21.True or false: a laptop has a built-in keyboard. (a) False (b) True
  22. 22.🤖 Does a digital thermometer usually have a microcontroller inside? (a) Yes (b) No
  23. 23.🤖 Microcontroller or laptop: which one runs many apps at once? (a) laptop (b) microcontroller
  24. 24.Which of these usually has a microcontroller inside? (a) a plain wall switch (b) a spinning top (c) a hand pump (d) a TV remote
  25. 25.🤖 Microcontroller or laptop: which one uses very little power? (a) laptop (b) microcontroller
  26. 26.Which of these has no microcontroller inside? (a) a digital thermometer (b) a candle (c) a washing machine (d) a microwave oven
  27. 27.True or false: a laptop needs much more power. (a) True (b) False
  28. 28.True or false: a microcontroller uses very little power. (a) False (b) True
  29. 29.🤖 Does a smart watch usually have a microcontroller inside? (a) No (b) Yes
  30. 30.🤖 Does a hand pump usually have a microcontroller inside? (a) Yes (b) No
  31. 31.True or false: a candle usually has a microcontroller inside. (a) True (b) False
  32. 32.True or false: a microcontroller needs much more power. (a) False (b) True
  33. 33.🤖 Does a candle usually have a microcontroller inside? (a) Yes (b) No
  34. 34.Which job is done by the voltage regulator? (a) shows the board is on (b) keeps the voltage steady (c) runs the program (d) brings power and code
  35. 35.True or false: a spinning top has no microcontroller inside. (a) True (b) False
  36. 36.True or false: a smart watch has no microcontroller inside. (a) True (b) False
  37. 37.🧭 Which part of a microcontroller board restarts the program? (a) the power LED (b) the main chip (c) the reset button (d) the voltage regulator
  38. 38.Which job is done by the USB port? (a) keeps the voltage steady (b) restarts the program (c) shows the board is on (d) brings power and code
  39. 39.Which of these has no microcontroller inside? (a) a microwave oven (b) a smart watch (c) a spinning top (d) a toy robot
  40. 40.Which job is done by the power LED? (a) restarts the program (b) brings power and code (c) runs the program (d) shows the board is on

Answer key

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

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