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Electronics Worksheet: What Is a Microcontroller

Electronics lesson 21: What is a microcontroller? · Set 202 · 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 has no microcontroller inside? (a) a TV remote (b) a microwave oven (c) a plain wall switch (d) a digital thermometer
  2. 2.🤖 Microcontroller or laptop: which one needs much more power? (a) microcontroller (b) laptop
  3. 3.Which of these usually has a microcontroller inside? (a) a digital alarm clock (b) a candle (c) a spinning top (d) a plain wall switch
  4. 4.Which of these usually has a microcontroller inside? (a) a washing machine (b) a bicycle bell (c) a wind-up toy (d) a hand pump
  5. 5.True or false: a spinning top usually has a microcontroller inside. (a) True (b) False
  6. 6.🤖 What is a microcontroller? (a) a type of battery (b) a computer on one chip (c) a kind of bulb (d) a big desktop computer
  7. 7.🧭 Which part of a microcontroller board shows the board is on? (a) the USB port (b) the voltage regulator (c) the main chip (d) the power LED
  8. 8.🧭 Which part of a microcontroller board connect sensors and LEDs? (a) the USB port (b) the pins (c) the main chip (d) the power LED
  9. 9.🤖 Does a bicycle bell usually have a microcontroller inside? (a) Yes (b) No
  10. 10.Which of these usually has a microcontroller inside? (a) a candle (b) a spinning top (c) a bicycle bell (d) a digital thermometer
  11. 11.🤖 Does a digital thermometer usually have a microcontroller inside? (a) No (b) Yes
  12. 12.Which of these has no microcontroller inside? (a) a smart watch (b) a candle (c) a TV remote (d) a digital thermometer
  13. 13.Which job is done by the reset button? (a) restarts the program (b) runs the program (c) brings power and code (d) shows the board is on
  14. 14.🤖 How does a new program get onto a microcontroller board? (a) uploaded over USB (b) drawn with a pen (c) sent by sound (d) typed on the chip
  15. 15.True or false: a microcontroller needs much more power. (a) False (b) True
  16. 16.🤖 Microcontroller or laptop: which one has a built-in keyboard? (a) laptop (b) microcontroller
  17. 17.Which job is done by the USB port? (a) brings power and code (b) restarts the program (c) connect sensors and LEDs (d) shows the board is on
  18. 18.🤖 Does a toy robot usually have a microcontroller inside? (a) Yes (b) No
  19. 19.True or false: a digital alarm clock has no microcontroller inside. (a) False (b) True
  20. 20.🧭 Which part of a microcontroller board runs the program? (a) the reset button (b) the pins (c) the main chip (d) the USB port
  21. 21.🤖 Does a smart watch usually have a microcontroller inside? (a) No (b) Yes
  22. 22.🤖 Where does the board keep its program when the power is off? (a) the USB cable (b) flash memory (c) the resistor (d) the power LED
  23. 23.True or false: a laptop uses very little power. (a) True (b) False
  24. 24.🤖 Does a plain wall switch usually have a microcontroller inside? (a) Yes (b) No
  25. 25.🤖 Which is a safe power source for a beginner microcontroller board? (a) bare mains wires (b) USB or a 9 V battery (c) a 230 V cable (d) a wall socket directly
  26. 26.True or false: a laptop runs one small program. (a) False (b) True
  27. 27.True or false: a smart watch has no microcontroller inside. (a) True (b) False
  28. 28.🤖 Microcontroller or laptop: which one uses very little power? (a) microcontroller (b) laptop
  29. 29.True or false: a hand pump has no microcontroller inside. (a) True (b) False
  30. 30.🤖 Does a digital alarm clock usually have a microcontroller inside? (a) Yes (b) No
  31. 31.🧭 Which part of a microcontroller board keeps the voltage steady? (a) the voltage regulator (b) the USB port (c) the power LED (d) the pins
  32. 32.True or false: a microcontroller uses very little power. (a) True (b) False
  33. 33.True or false: a laptop needs much more power. (a) False (b) True
  34. 34.🤖 Does a TV remote usually have a microcontroller inside? (a) Yes (b) No
  35. 35.🤖 Microcontroller or laptop: which one runs many apps at once? (a) microcontroller (b) laptop
  36. 36.Which of these usually has a microcontroller inside? (a) a bicycle bell (b) a candle (c) a hand pump (d) a TV remote
  37. 37.🧭 Which part of a microcontroller board restarts the program? (a) the power LED (b) the reset button (c) the pins (d) the main chip
  38. 38.True or false: a plain wall switch has no microcontroller inside. (a) True (b) False
  39. 39.🤖 Microcontroller or laptop: which one has no screen of its own? (a) laptop (b) microcontroller
  40. 40.True or false: a spinning top has no microcontroller inside. (a) True (b) False

Answer key

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

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