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Electronics Worksheet: What Is a Microcontroller

Electronics lesson 21: What is a microcontroller? · Set 685 · 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.True or false: a washing machine usually has a microcontroller inside. (a) True (b) False
  2. 2.Which of these usually has a microcontroller inside? (a) a smart watch (b) a bicycle bell (c) a hand pump (d) a spinning top
  3. 3.True or false: a digital alarm clock has no microcontroller inside. (a) True (b) False
  4. 4.True or false: a digital thermometer usually has a microcontroller inside. (a) False (b) True
  5. 5.🤖 What is a microcontroller? (a) a big desktop computer (b) a kind of bulb (c) a type of battery (d) a computer on one chip
  6. 6.Which of these usually has a microcontroller inside? (a) a wind-up toy (b) a washing machine (c) a hand pump (d) a candle
  7. 7.Which of these usually has a microcontroller inside? (a) a hand pump (b) a toy robot (c) a spinning top (d) a plain wall switch
  8. 8.True or false: a candle usually has a microcontroller inside. (a) True (b) False
  9. 9.🤖 Which is a safe power source for a beginner microcontroller board? (a) a 230 V cable (b) USB or a 9 V battery (c) bare mains wires (d) a wall socket directly
  10. 10.True or false: a digital thermometer has no microcontroller inside. (a) False (b) True
  11. 11.🤖 Does a TV remote usually have a microcontroller inside? (a) Yes (b) No
  12. 12.True or false: a laptop runs one small program. (a) True (b) False
  13. 13.🤖 How does a new program get onto a microcontroller board? (a) typed on the chip (b) sent by sound (c) uploaded over USB (d) drawn with a pen
  14. 14.🤖 Does a bicycle bell usually have a microcontroller inside? (a) No (b) Yes
  15. 15.🤖 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
  16. 16.True or false: a microcontroller needs much more power. (a) True (b) False
  17. 17.🤖 Microcontroller or laptop: which one has a built-in keyboard? (a) microcontroller (b) laptop
  18. 18.Which of these usually has a microcontroller inside? (a) a spinning top (b) a plain wall switch (c) a hand pump (d) a microwave oven
  19. 19.Which job is done by the reset button? (a) brings power and code (b) shows the board is on (c) restarts the program (d) runs the program
  20. 20.🤖 Does a smart watch usually have a microcontroller inside? (a) No (b) Yes
  21. 21.🧭 Which part of a microcontroller board connect sensors and LEDs? (a) the reset button (b) the main chip (c) the pins (d) the power LED
  22. 22.🤖 Does a toy robot usually have a microcontroller inside? (a) No (b) Yes
  23. 23.🤖 Does a microwave oven usually have a microcontroller inside? (a) No (b) Yes
  24. 24.Which job is done by the power LED? (a) keeps the voltage steady (b) runs the program (c) shows the board is on (d) brings power and code
  25. 25.True or false: a bicycle bell usually has a microcontroller inside. (a) True (b) False
  26. 26.Which job is done by the main chip? (a) shows the board is on (b) connect sensors and LEDs (c) brings power and code (d) runs the program
  27. 27.🤖 Does a candle usually have a microcontroller inside? (a) No (b) Yes
  28. 28.🤖 Does a digital alarm clock usually have a microcontroller inside? (a) Yes (b) No
  29. 29.True or false: a laptop runs many apps at once. (a) True (b) False
  30. 30.🧭 Which part of a microcontroller board restarts the program? (a) the pins (b) the voltage regulator (c) the USB port (d) the reset button
  31. 31.Which of these usually has a microcontroller inside? (a) a bicycle bell (b) a spinning top (c) a candle (d) a TV remote
  32. 32.🤖 Microcontroller or laptop: which one needs much more power? (a) microcontroller (b) laptop
  33. 33.🤖 Does a hand pump usually have a microcontroller inside? (a) Yes (b) No
  34. 34.True or false: a microcontroller uses very little power. (a) True (b) False
  35. 35.🧭 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
  36. 36.True or false: a microcontroller runs many apps at once. (a) True (b) False
  37. 37.🤖 Microcontroller or laptop: which one runs one small program? (a) laptop (b) microcontroller
  38. 38.🤖 Microcontroller or laptop: which one has no screen of its own? (a) laptop (b) microcontroller
  39. 39.True or false: a candle has no microcontroller inside. (a) True (b) False
  40. 40.🤖 Microcontroller or laptop: which one uses very little power? (a) laptop (b) microcontroller

Answer key

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

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