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Electronics Worksheet: What Is a Microcontroller

Electronics lesson 21: What is a microcontroller? · Set 310 · 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 runs one small program? (a) laptop (b) microcontroller
  2. 2.Which of these usually has a microcontroller inside? (a) a washing machine (b) a hand pump (c) a spinning top (d) a wind-up toy
  3. 3.🧭 Which part of a microcontroller board shows the board is on? (a) the voltage regulator (b) the USB port (c) the reset button (d) the power LED
  4. 4.Which of these usually has a microcontroller inside? (a) a digital thermometer (b) a hand pump (c) a spinning top (d) a plain wall switch
  5. 5.True or false: a smart watch usually has a microcontroller inside. (a) False (b) True
  6. 6.Which job is done by the main chip? (a) keeps the voltage steady (b) runs the program (c) brings power and code (d) restarts the program
  7. 7.Which of these has no microcontroller inside? (a) a digital alarm clock (b) a digital thermometer (c) a plain wall switch (d) a washing machine
  8. 8.True or false: a spinning top has no microcontroller inside. (a) False (b) True
  9. 9.🧭 Which part of a microcontroller board restarts the program? (a) the reset button (b) the power LED (c) the USB port (d) the main chip
  10. 10.True or false: a laptop runs many apps at once. (a) False (b) True
  11. 11.True or false: a digital alarm clock usually has a microcontroller inside. (a) False (b) True
  12. 12.Which of these has no microcontroller inside? (a) a wind-up toy (b) a toy robot (c) a smart watch (d) a microwave oven
  13. 13.🤖 Microcontroller or laptop: which one has no screen of its own? (a) microcontroller (b) laptop
  14. 14.True or false: a microcontroller uses very little power. (a) False (b) True
  15. 15.🧭 Which part of a microcontroller board keeps the voltage steady? (a) the USB port (b) the voltage regulator (c) the main chip (d) the power LED
  16. 16.True or false: a microcontroller runs one small program. (a) False (b) True
  17. 17.🤖 Does a bicycle bell usually have a microcontroller inside? (a) Yes (b) No
  18. 18.🤖 How does a new program get onto a microcontroller board? (a) drawn with a pen (b) uploaded over USB (c) typed on the chip (d) sent by sound
  19. 19.Which job is done by the voltage regulator? (a) runs the program (b) connect sensors and LEDs (c) brings power and code (d) keeps the voltage steady
  20. 20.True or false: a microcontroller needs much more power. (a) False (b) True
  21. 21.🤖 Microcontroller or laptop: which one has a built-in keyboard? (a) microcontroller (b) laptop
  22. 22.🤖 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
  23. 23.🤖 Which is a safe power source for a beginner microcontroller board? (a) a 230 V cable (b) a wall socket directly (c) USB or a 9 V battery (d) bare mains wires
  24. 24.Which job is done by the power LED? (a) restarts the program (b) brings power and code (c) keeps the voltage steady (d) shows the board is on
  25. 25.Which job is done by the USB port? (a) brings power and code (b) keeps the voltage steady (c) runs the program (d) restarts the program
  26. 26.🤖 Does a hand pump usually have a microcontroller inside? (a) Yes (b) No
  27. 27.🧭 Which part of a microcontroller board connect sensors and LEDs? (a) the USB port (b) the reset button (c) the voltage regulator (d) the pins
  28. 28.True or false: a laptop runs one small program. (a) True (b) False
  29. 29.True or false: a wind-up toy usually has a microcontroller inside. (a) True (b) False
  30. 30.Which of these has no microcontroller inside? (a) a digital thermometer (b) a candle (c) a smart watch (d) a washing machine
  31. 31.Which job is done by the pins? (a) shows the board is on (b) brings power and code (c) connect sensors and LEDs (d) restarts the program
  32. 32.Which of these has no microcontroller inside? (a) a smart watch (b) a digital alarm clock (c) a hand pump (d) a washing machine
  33. 33.Which of these usually has a microcontroller inside? (a) a spinning top (b) a candle (c) a bicycle bell (d) a toy robot
  34. 34.🤖 Does a digital alarm clock usually have a microcontroller inside? (a) Yes (b) No
  35. 35.🤖 Does a smart watch usually have a microcontroller inside? (a) No (b) Yes
  36. 36.🤖 Microcontroller or laptop: which one uses very little power? (a) laptop (b) microcontroller
  37. 37.True or false: a toy robot usually has a microcontroller inside. (a) False (b) True
  38. 38.True or false: a microcontroller has no screen of its own. (a) True (b) False
  39. 39.True or false: a TV remote usually has a microcontroller inside. (a) False (b) True
  40. 40.True or false: a laptop needs much more power. (a) True (b) False

Answer key

  1. microcontroller
  2. a washing machine
  3. the power LED
  4. a digital thermometer
  5. True
  6. runs the program
  7. a plain wall switch
  8. True
  9. the reset button
  10. True
  11. True
  12. a wind-up toy
  13. microcontroller
  14. True
  15. the voltage regulator
  16. True
  17. No
  18. uploaded over USB
  19. keeps the voltage steady
  20. False
  21. laptop
  22. a computer on one chip
  23. USB or a 9 V battery
  24. shows the board is on
  25. brings power and code
  26. No
  27. the pins
  28. False
  29. False
  30. a candle
  31. connect sensors and LEDs
  32. a hand pump
  33. a toy robot
  34. Yes
  35. Yes
  36. microcontroller
  37. True
  38. True
  39. True
  40. True

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