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Electronics Worksheet: What Is a Microcontroller

Electronics lesson 21: What is a microcontroller? · Set 508 · 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 uses very little power? (a) microcontroller (b) laptop
  2. 2.Which job is done by the pins? (a) connect sensors and LEDs (b) restarts the program (c) keeps the voltage steady (d) brings power and code
  3. 3.🤖 Does a washing machine usually have a microcontroller inside? (a) No (b) Yes
  4. 4.🤖 Does a digital alarm clock usually have a microcontroller inside? (a) Yes (b) No
  5. 5.🧭 Which part of a microcontroller board keeps the voltage steady? (a) the pins (b) the voltage regulator (c) the reset button (d) the main chip
  6. 6.Which of these usually has a microcontroller inside? (a) a candle (b) a wind-up toy (c) a digital alarm clock (d) a hand pump
  7. 7.True or false: a smart watch has no microcontroller inside. (a) True (b) False
  8. 8.🤖 Microcontroller or laptop: which one runs one small program? (a) laptop (b) microcontroller
  9. 9.True or false: a laptop uses very little power. (a) True (b) False
  10. 10.Which job is done by the reset button? (a) restarts the program (b) keeps the voltage steady (c) runs the program (d) brings power and code
  11. 11.True or false: a laptop needs much more power. (a) False (b) True
  12. 12.True or false: a microwave oven usually has a microcontroller inside. (a) True (b) False
  13. 13.🧭 Which part of a microcontroller board connect sensors and LEDs? (a) the pins (b) the voltage regulator (c) the USB port (d) the main chip
  14. 14.True or false: a bicycle bell has no microcontroller inside. (a) True (b) False
  15. 15.Which job is done by the USB port? (a) restarts the program (b) brings power and code (c) keeps the voltage steady (d) connect sensors and LEDs
  16. 16.🤖 Where does the board keep its program when the power is off? (a) flash memory (b) the resistor (c) the USB cable (d) the power LED
  17. 17.Which of these has no microcontroller inside? (a) a toy robot (b) a wind-up toy (c) a microwave oven (d) a digital thermometer
  18. 18.True or false: a microcontroller has a built-in keyboard. (a) False (b) True
  19. 19.🤖 Does a wind-up toy usually have a microcontroller inside? (a) No (b) Yes
  20. 20.🤖 Microcontroller or laptop: which one runs many apps at once? (a) laptop (b) microcontroller
  21. 21.True or false: a TV remote usually has a microcontroller inside. (a) False (b) True
  22. 22.True or false: a laptop runs many apps at once. (a) True (b) False
  23. 23.True or false: a digital alarm clock has no microcontroller inside. (a) True (b) False
  24. 24.Which of these has no microcontroller inside? (a) a microwave oven (b) a smart watch (c) a candle (d) a TV remote
  25. 25.Which of these usually has a microcontroller inside? (a) a plain wall switch (b) a washing machine (c) a bicycle bell (d) a wind-up toy
  26. 26.True or false: a hand pump usually has a microcontroller inside. (a) True (b) False
  27. 27.🤖 Which is a safe power source for a beginner microcontroller board? (a) bare mains wires (b) USB or a 9 V battery (c) a wall socket directly (d) a 230 V cable
  28. 28.True or false: a washing machine usually has a microcontroller inside. (a) False (b) True
  29. 29.True or false: a candle usually has a microcontroller inside. (a) False (b) True
  30. 30.🤖 Does a digital thermometer usually have a microcontroller inside? (a) No (b) Yes
  31. 31.🤖 Microcontroller or laptop: which one needs much more power? (a) microcontroller (b) laptop
  32. 32.🤖 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
  33. 33.True or false: a laptop runs one small program. (a) True (b) False
  34. 34.🤖 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
  35. 35.🧭 Which part of a microcontroller board restarts the program? (a) the USB port (b) the reset button (c) the voltage regulator (d) the pins
  36. 36.Which of these usually has a microcontroller inside? (a) a TV remote (b) a candle (c) a hand pump (d) a plain wall switch
  37. 37.True or false: a microwave oven has no microcontroller inside. (a) True (b) False
  38. 38.True or false: a microcontroller uses very little power. (a) False (b) True
  39. 39.True or false: a microcontroller runs many apps at once. (a) True (b) False
  40. 40.True or false: a laptop has no screen of its own. (a) True (b) False

Answer key

  1. microcontroller
  2. connect sensors and LEDs
  3. Yes
  4. Yes
  5. the voltage regulator
  6. a digital alarm clock
  7. False
  8. microcontroller
  9. False
  10. restarts the program
  11. True
  12. True
  13. the pins
  14. True
  15. brings power and code
  16. flash memory
  17. a wind-up toy
  18. False
  19. No
  20. laptop
  21. True
  22. True
  23. False
  24. a candle
  25. a washing machine
  26. False
  27. USB or a 9 V battery
  28. True
  29. False
  30. Yes
  31. laptop
  32. uploaded over USB
  33. False
  34. a computer on one chip
  35. the reset button
  36. a TV remote
  37. False
  38. True
  39. False
  40. False

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