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Electronics Worksheet: What Is a Microcontroller

Electronics lesson 21: What is a microcontroller? · Set 626 · 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.🤖 Microcontroller or laptop: which one has a built-in keyboard? (a) microcontroller (b) laptop
  2. 2.True or false: a laptop runs many apps at once. (a) True (b) False
  3. 3.🤖 When the main loop of a microcontroller program ends, what happens? (a) it deletes itself (b) it starts again (c) it stops forever (d) the board breaks
  4. 4.True or false: a hand pump has no microcontroller inside. (a) True (b) False
  5. 5.🤖 Does a washing machine usually have a microcontroller inside? (a) Yes (b) No
  6. 6.Which of these has no microcontroller inside? (a) a washing machine (b) a TV remote (c) a hand pump (d) a microwave oven
  7. 7.Which of these has no microcontroller inside? (a) a wind-up toy (b) a digital alarm clock (c) a washing machine (d) a toy robot
  8. 8.Which of these usually has a microcontroller inside? (a) a candle (b) a wind-up toy (c) a washing machine (d) a plain wall switch
  9. 9.🧭 Which part of a microcontroller board shows the board is on? (a) the pins (b) the reset button (c) the power LED (d) the USB port
  10. 10.🧭 Which part of a microcontroller board keeps the voltage steady? (a) the USB port (b) the voltage regulator (c) the reset button (d) the pins
  11. 11.True or false: a plain wall switch usually has a microcontroller inside. (a) False (b) True
  12. 12.🤖 Does a hand pump usually have a microcontroller inside? (a) Yes (b) No
  13. 13.🤖 Where does the board keep its program when the power is off? (a) the resistor (b) the power LED (c) flash memory (d) the USB cable
  14. 14.🤖 Microcontroller or laptop: which one needs much more power? (a) laptop (b) microcontroller
  15. 15.🤖 Does a plain wall switch usually have a microcontroller inside? (a) No (b) Yes
  16. 16.Which job is done by the USB port? (a) runs the program (b) restarts the program (c) keeps the voltage steady (d) brings power and code
  17. 17.🤖 Which is a safe power source for a beginner microcontroller board? (a) USB or a 9 V battery (b) bare mains wires (c) a wall socket directly (d) a 230 V cable
  18. 18.Which of these usually has a microcontroller inside? (a) a bicycle bell (b) a candle (c) a smart watch (d) a wind-up toy
  19. 19.True or false: a bicycle bell usually has a microcontroller inside. (a) True (b) False
  20. 20.True or false: a microcontroller has no screen of its own. (a) False (b) True
  21. 21.Which of these usually has a microcontroller inside? (a) a candle (b) a plain wall switch (c) a digital thermometer (d) a hand pump
  22. 22.True or false: a microcontroller uses very little power. (a) False (b) True
  23. 23.Which of these has no microcontroller inside? (a) a digital alarm clock (b) a toy robot (c) a digital thermometer (d) a bicycle bell
  24. 24.🧭 Which part of a microcontroller board runs the program? (a) the voltage regulator (b) the power LED (c) the reset button (d) the main chip
  25. 25.🤖 Microcontroller or laptop: which one has no screen of its own? (a) microcontroller (b) laptop
  26. 26.🧭 Which part of a microcontroller board connect sensors and LEDs? (a) the USB port (b) the main chip (c) the pins (d) the reset button
  27. 27.True or false: a laptop uses very little power. (a) True (b) False
  28. 28.True or false: a bicycle bell has no microcontroller inside. (a) False (b) True
  29. 29.True or false: a microcontroller needs much more power. (a) False (b) True
  30. 30.🤖 Does a spinning top usually have a microcontroller inside? (a) Yes (b) No
  31. 31.True or false: a microcontroller has a built-in keyboard. (a) True (b) False
  32. 32.Which job is done by the reset button? (a) shows the board is on (b) keeps the voltage steady (c) connect sensors and LEDs (d) restarts the program
  33. 33.🧭 Which part of a microcontroller board brings power and code? (a) the USB port (b) the voltage regulator (c) the pins (d) the reset button
  34. 34.🤖 What is a microcontroller? (a) a type of battery (b) a kind of bulb (c) a big desktop computer (d) a computer on one chip
  35. 35.🤖 Microcontroller or laptop: which one runs one small program? (a) laptop (b) microcontroller
  36. 36.Which of these has no microcontroller inside? (a) a digital alarm clock (b) a washing machine (c) a microwave oven (d) a candle
  37. 37.Which job is done by the voltage regulator? (a) keeps the voltage steady (b) shows the board is on (c) connect sensors and LEDs (d) runs the program
  38. 38.True or false: a wind-up toy has no microcontroller inside. (a) False (b) True
  39. 39.True or false: a laptop has a built-in keyboard. (a) True (b) False
  40. 40.True or false: a microcontroller runs one small program. (a) True (b) False

Answer key

  1. laptop
  2. True
  3. it starts again
  4. True
  5. Yes
  6. a hand pump
  7. a wind-up toy
  8. a washing machine
  9. the power LED
  10. the voltage regulator
  11. False
  12. No
  13. flash memory
  14. laptop
  15. No
  16. brings power and code
  17. USB or a 9 V battery
  18. a smart watch
  19. False
  20. True
  21. a digital thermometer
  22. True
  23. a bicycle bell
  24. the main chip
  25. microcontroller
  26. the pins
  27. False
  28. True
  29. False
  30. No
  31. False
  32. restarts the program
  33. the USB port
  34. a computer on one chip
  35. microcontroller
  36. a candle
  37. keeps the voltage steady
  38. True
  39. True
  40. True

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