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Electronics Worksheet: What Is a Microcontroller

Electronics lesson 21: What is a microcontroller? · Set 375 · 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 TV remote (b) a hand pump (c) a candle (d) a plain wall switch
  2. 2.True or false: a digital alarm clock has no microcontroller inside. (a) True (b) False
  3. 3.Which job is done by the main chip? (a) brings power and code (b) runs the program (c) restarts the program (d) connect sensors and LEDs
  4. 4.True or false: a toy robot usually has a microcontroller inside. (a) True (b) False
  5. 5.Which of these usually has a microcontroller inside? (a) a smart watch (b) a spinning top (c) a candle (d) a wind-up toy
  6. 6.Which of these usually has a microcontroller inside? (a) a toy robot (b) a bicycle bell (c) a wind-up toy (d) a candle
  7. 7.True or false: a laptop runs many apps at once. (a) False (b) True
  8. 8.True or false: a microcontroller runs one small program. (a) True (b) False
  9. 9.🤖 Does a spinning top usually have a microcontroller inside? (a) Yes (b) No
  10. 10.True or false: a digital thermometer has no microcontroller inside. (a) True (b) False
  11. 11.Which job is done by the USB port? (a) shows the board is on (b) brings power and code (c) connect sensors and LEDs (d) restarts the program
  12. 12.True or false: a microcontroller runs many apps at once. (a) True (b) False
  13. 13.True or false: a smart watch usually has a microcontroller inside. (a) True (b) False
  14. 14.True or false: a laptop runs one small program. (a) False (b) True
  15. 15.🧭 Which part of a microcontroller board runs the program? (a) the voltage regulator (b) the reset button (c) the pins (d) the main chip
  16. 16.True or false: a laptop uses very little power. (a) False (b) True
  17. 17.🤖 Microcontroller or laptop: which one uses very little power? (a) laptop (b) microcontroller
  18. 18.🧭 Which part of a microcontroller board restarts the program? (a) the power LED (b) the USB port (c) the reset button (d) the voltage regulator
  19. 19.Which of these has no microcontroller inside? (a) a TV remote (b) a washing machine (c) a candle (d) a digital thermometer
  20. 20.🤖 How does a new program get onto a microcontroller board? (a) sent by sound (b) uploaded over USB (c) drawn with a pen (d) typed on the chip
  21. 21.🤖 What is a microcontroller? (a) a type of battery (b) a big desktop computer (c) a computer on one chip (d) a kind of bulb
  22. 22.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
  23. 23.🤖 When the main loop of a microcontroller program ends, what happens? (a) the board breaks (b) it stops forever (c) it starts again (d) it deletes itself
  24. 24.🤖 Does a toy robot usually have a microcontroller inside? (a) Yes (b) No
  25. 25.Which of these usually has a microcontroller inside? (a) a microwave oven (b) a spinning top (c) a bicycle bell (d) a hand pump
  26. 26.🤖 Which is a safe power source for a beginner microcontroller board? (a) a 230 V cable (b) a wall socket directly (c) bare mains wires (d) USB or a 9 V battery
  27. 27.🤖 Does a wind-up toy usually have a microcontroller inside? (a) No (b) Yes
  28. 28.True or false: a digital alarm clock usually has a microcontroller inside. (a) True (b) False
  29. 29.🤖 Does a digital alarm clock usually have a microcontroller inside? (a) Yes (b) No
  30. 30.Which of these usually has a microcontroller inside? (a) a bicycle bell (b) a wind-up toy (c) a washing machine (d) a candle
  31. 31.True or false: a microcontroller uses very little power. (a) False (b) True
  32. 32.🤖 Microcontroller or laptop: which one has a built-in keyboard? (a) microcontroller (b) laptop
  33. 33.🤖 Does a microwave oven usually have a microcontroller inside? (a) No (b) Yes
  34. 34.🤖 Microcontroller or laptop: which one needs much more power? (a) laptop (b) microcontroller
  35. 35.Which job is done by the voltage regulator? (a) connect sensors and LEDs (b) restarts the program (c) keeps the voltage steady (d) runs the program
  36. 36.🧭 Which part of a microcontroller board brings power and code? (a) the voltage regulator (b) the USB port (c) the pins (d) the reset button
  37. 37.True or false: a bicycle bell usually has a microcontroller inside. (a) True (b) False
  38. 38.True or false: a washing machine usually has a microcontroller inside. (a) True (b) False
  39. 39.True or false: a hand pump has no microcontroller inside. (a) False (b) True
  40. 40.True or false: a microcontroller has no screen of its own. (a) False (b) True

Answer key

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

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