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Electronics Worksheet: What Is a Microcontroller

Electronics lesson 21: What is a microcontroller? · Set 446 · 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 job is done by the voltage regulator? (a) brings power and code (b) shows the board is on (c) connect sensors and LEDs (d) keeps the voltage steady
  2. 2.Which of these has no microcontroller inside? (a) a bicycle bell (b) a TV remote (c) a microwave oven (d) a digital thermometer
  3. 3.Which of these usually has a microcontroller inside? (a) a smart watch (b) a candle (c) a wind-up toy (d) a hand pump
  4. 4.True or false: a wind-up toy usually has a microcontroller inside. (a) True (b) False
  5. 5.True or false: a washing machine usually has a microcontroller inside. (a) True (b) False
  6. 6.🤖 Microcontroller or laptop: which one uses very little power? (a) laptop (b) microcontroller
  7. 7.Which of these usually has a microcontroller inside? (a) a hand pump (b) a plain wall switch (c) a candle (d) a toy robot
  8. 8.🤖 Does a plain wall switch usually have a microcontroller inside? (a) Yes (b) No
  9. 9.True or false: a spinning top has no microcontroller inside. (a) True (b) False
  10. 10.Which of these usually has a microcontroller inside? (a) a hand pump (b) a TV remote (c) a bicycle bell (d) a candle
  11. 11.True or false: a microcontroller runs many apps at once. (a) False (b) True
  12. 12.Which of these has no microcontroller inside? (a) a wind-up toy (b) a TV remote (c) a washing machine (d) a microwave oven
  13. 13.🧭 Which part of a microcontroller board runs the program? (a) the reset button (b) the pins (c) the USB port (d) the main chip
  14. 14.True or false: a laptop runs one small program. (a) True (b) False
  15. 15.🤖 Microcontroller or laptop: which one has no screen of its own? (a) laptop (b) microcontroller
  16. 16.🧭 Which part of a microcontroller board brings power and code? (a) the power LED (b) the USB port (c) the pins (d) the reset button
  17. 17.🧭 Which part of a microcontroller board shows the board is on? (a) the reset button (b) the pins (c) the power LED (d) the main chip
  18. 18.🤖 Does a digital thermometer usually have a microcontroller inside? (a) No (b) Yes
  19. 19.🤖 Microcontroller or laptop: which one runs one small program? (a) microcontroller (b) laptop
  20. 20.🧭 Which part of a microcontroller board keeps the voltage steady? (a) the pins (b) the power LED (c) the voltage regulator (d) the USB port
  21. 21.Which job is done by the main chip? (a) connect sensors and LEDs (b) keeps the voltage steady (c) runs the program (d) restarts the program
  22. 22.True or false: a plain wall switch has no microcontroller inside. (a) False (b) True
  23. 23.Which of these usually has a microcontroller inside? (a) a spinning top (b) a candle (c) a microwave oven (d) a plain wall switch
  24. 24.Which of these usually has a microcontroller inside? (a) a washing machine (b) a hand pump (c) a bicycle bell (d) a plain wall switch
  25. 25.🤖 When the main loop of a microcontroller program ends, what happens? (a) the board breaks (b) it starts again (c) it deletes itself (d) it stops forever
  26. 26.Which of these has no microcontroller inside? (a) a smart watch (b) a microwave oven (c) a digital alarm clock (d) a candle
  27. 27.🤖 Where does the board keep its program when the power is off? (a) the resistor (b) the power LED (c) the USB cable (d) flash memory
  28. 28.True or false: a microcontroller uses very little power. (a) True (b) False
  29. 29.Which of these usually has a microcontroller inside? (a) a hand pump (b) a bicycle bell (c) a digital alarm clock (d) a wind-up toy
  30. 30.🤖 Does a bicycle bell usually have a microcontroller inside? (a) Yes (b) No
  31. 31.True or false: a hand pump has no microcontroller inside. (a) False (b) True
  32. 32.🤖 What is a microcontroller? (a) a kind of bulb (b) a type of battery (c) a big desktop computer (d) a computer on one chip
  33. 33.🤖 Which is a safe power source for a beginner microcontroller board? (a) a wall socket directly (b) bare mains wires (c) a 230 V cable (d) USB or a 9 V battery
  34. 34.🤖 Microcontroller or laptop: which one needs much more power? (a) laptop (b) microcontroller
  35. 35.🤖 Microcontroller or laptop: which one runs many apps at once? (a) laptop (b) microcontroller
  36. 36.🤖 Does a washing machine usually have a microcontroller inside? (a) No (b) Yes
  37. 37.True or false: a microcontroller needs much more power. (a) False (b) True
  38. 38.True or false: a TV remote has no microcontroller inside. (a) True (b) False
  39. 39.Which of these usually has a microcontroller inside? (a) a candle (b) a bicycle bell (c) a digital thermometer (d) a spinning top
  40. 40.True or false: a laptop has no screen of its own. (a) True (b) False

Answer key

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

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