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Electronics Worksheet: What Is a Microcontroller

Electronics lesson 21: What is a microcontroller? · Set 714 · 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 digital alarm clock (b) a TV remote (c) a spinning top (d) a washing machine
  2. 2.🤖 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
  3. 3.🤖 Which is a safe power source for a beginner microcontroller board? (a) bare mains wires (b) a 230 V cable (c) a wall socket directly (d) USB or a 9 V battery
  4. 4.🧭 Which part of a microcontroller board brings power and code? (a) the reset button (b) the USB port (c) the voltage regulator (d) the power LED
  5. 5.True or false: a wind-up toy has no microcontroller inside. (a) True (b) False
  6. 6.Which job is done by the pins? (a) connect sensors and LEDs (b) brings power and code (c) keeps the voltage steady (d) runs the program
  7. 7.🧭 Which part of a microcontroller board runs the program? (a) the USB port (b) the pins (c) the main chip (d) the power LED
  8. 8.🤖 Does a plain wall switch usually have a microcontroller inside? (a) No (b) Yes
  9. 9.Which job is done by the USB port? (a) connect sensors and LEDs (b) brings power and code (c) keeps the voltage steady (d) runs the program
  10. 10.🤖 Microcontroller or laptop: which one runs many apps at once? (a) microcontroller (b) laptop
  11. 11.🤖 Does a washing machine usually have a microcontroller inside? (a) Yes (b) No
  12. 12.True or false: a microcontroller has no screen of its own. (a) False (b) True
  13. 13.Which job is done by the voltage regulator? (a) runs the program (b) brings power and code (c) connect sensors and LEDs (d) keeps the voltage steady
  14. 14.True or false: a hand pump has no microcontroller inside. (a) False (b) True
  15. 15.True or false: a microcontroller uses very little power. (a) True (b) False
  16. 16.True or false: a bicycle bell has no microcontroller inside. (a) False (b) True
  17. 17.🤖 Does a digital thermometer usually have a microcontroller inside? (a) Yes (b) No
  18. 18.True or false: a laptop uses very little power. (a) True (b) False
  19. 19.Which job is done by the main chip? (a) keeps the voltage steady (b) connect sensors and LEDs (c) runs the program (d) brings power and code
  20. 20.True or false: a digital alarm clock has no microcontroller inside. (a) False (b) True
  21. 21.🤖 Where does the board keep its program when the power is off? (a) the resistor (b) flash memory (c) the power LED (d) the USB cable
  22. 22.🤖 Does a microwave oven usually have a microcontroller inside? (a) No (b) Yes
  23. 23.True or false: a laptop runs many apps at once. (a) False (b) True
  24. 24.Which of these usually has a microcontroller inside? (a) a hand pump (b) a washing machine (c) a spinning top (d) a candle
  25. 25.🤖 Does a digital alarm clock usually have a microcontroller inside? (a) Yes (b) No
  26. 26.Which of these has no microcontroller inside? (a) a wind-up toy (b) a microwave oven (c) a TV remote (d) a toy robot
  27. 27.Which of these usually has a microcontroller inside? (a) a wind-up toy (b) a spinning top (c) a smart watch (d) a hand pump
  28. 28.🧭 Which part of a microcontroller board shows the board is on? (a) the main chip (b) the power LED (c) the voltage regulator (d) the reset button
  29. 29.🤖 Does a spinning top usually have a microcontroller inside? (a) Yes (b) No
  30. 30.True or false: a washing machine usually has a microcontroller inside. (a) True (b) False
  31. 31.🤖 Does a candle usually have a microcontroller inside? (a) No (b) Yes
  32. 32.🤖 Microcontroller or laptop: which one uses very little power? (a) microcontroller (b) laptop
  33. 33.Which of these usually has a microcontroller inside? (a) a spinning top (b) a wind-up toy (c) a plain wall switch (d) a microwave oven
  34. 34.Which job is done by the reset button? (a) restarts the program (b) connect sensors and LEDs (c) shows the board is on (d) runs the program
  35. 35.True or false: a bicycle bell usually has a microcontroller inside. (a) False (b) True
  36. 36.True or false: a microcontroller has a built-in keyboard. (a) False (b) True
  37. 37.🤖 Microcontroller or laptop: which one runs one small program? (a) laptop (b) microcontroller
  38. 38.🧭 Which part of a microcontroller board connect sensors and LEDs? (a) the voltage regulator (b) the pins (c) the USB port (d) the main chip
  39. 39.True or false: a laptop has no screen of its own. (a) True (b) False
  40. 40.Which of these usually has a microcontroller inside? (a) a hand pump (b) a spinning top (c) a digital thermometer (d) a candle

Answer key

  1. a spinning top
  2. uploaded over USB
  3. USB or a 9 V battery
  4. the USB port
  5. True
  6. connect sensors and LEDs
  7. the main chip
  8. No
  9. brings power and code
  10. laptop
  11. Yes
  12. True
  13. keeps the voltage steady
  14. True
  15. True
  16. True
  17. Yes
  18. False
  19. runs the program
  20. False
  21. flash memory
  22. Yes
  23. True
  24. a washing machine
  25. Yes
  26. a wind-up toy
  27. a smart watch
  28. the power LED
  29. No
  30. True
  31. No
  32. microcontroller
  33. a microwave oven
  34. restarts the program
  35. False
  36. False
  37. microcontroller
  38. the pins
  39. False
  40. a digital thermometer

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