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Electronics Worksheet: What Is a Microcontroller

Electronics lesson 21: What is a microcontroller? · Set 417 · 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 smart watch usually has a microcontroller inside. (a) False (b) True
  2. 2.Which job is done by the USB port? (a) restarts the program (b) brings power and code (c) shows the board is on (d) keeps the voltage steady
  3. 3.True or false: a laptop has a built-in keyboard. (a) False (b) True
  4. 4.🤖 Microcontroller or laptop: which one runs one small program? (a) microcontroller (b) laptop
  5. 5.🧭 Which part of a microcontroller board brings power and code? (a) the reset button (b) the USB port (c) the pins (d) the main chip
  6. 6.🤖 Does a microwave oven usually have a microcontroller inside? (a) No (b) Yes
  7. 7.🤖 Does a candle usually have a microcontroller inside? (a) Yes (b) No
  8. 8.🧭 Which part of a microcontroller board keeps the voltage steady? (a) the main chip (b) the reset button (c) the voltage regulator (d) the power LED
  9. 9.Which job is done by the pins? (a) shows the board is on (b) connect sensors and LEDs (c) brings power and code (d) keeps the voltage steady
  10. 10.Which job is done by the main chip? (a) keeps the voltage steady (b) brings power and code (c) restarts the program (d) runs the program
  11. 11.Which of these usually has a microcontroller inside? (a) a digital thermometer (b) a candle (c) a wind-up toy (d) a hand pump
  12. 12.🧭 Which part of a microcontroller board restarts the program? (a) the power LED (b) the reset button (c) the main chip (d) the voltage regulator
  13. 13.🤖 Microcontroller or laptop: which one has no screen of its own? (a) laptop (b) microcontroller
  14. 14.🤖 Does a washing machine usually have a microcontroller inside? (a) No (b) Yes
  15. 15.Which job is done by the voltage regulator? (a) runs the program (b) restarts the program (c) keeps the voltage steady (d) brings power and code
  16. 16.🧭 Which part of a microcontroller board runs the program? (a) the reset button (b) the pins (c) the main chip (d) the voltage regulator
  17. 17.True or false: a plain wall switch has no microcontroller inside. (a) False (b) True
  18. 18.True or false: a candle usually has a microcontroller inside. (a) False (b) True
  19. 19.Which of these usually has a microcontroller inside? (a) a candle (b) a spinning top (c) a plain wall switch (d) a TV remote
  20. 20.True or false: a microcontroller runs many apps at once. (a) True (b) False
  21. 21.True or false: a laptop runs one small program. (a) True (b) False
  22. 22.Which of these usually has a microcontroller inside? (a) a candle (b) a wind-up toy (c) a plain wall switch (d) a microwave oven
  23. 23.True or false: a digital alarm clock has no microcontroller inside. (a) False (b) True
  24. 24.True or false: a spinning top usually has a microcontroller inside. (a) False (b) True
  25. 25.Which of these has no microcontroller inside? (a) a toy robot (b) a plain wall switch (c) a digital alarm clock (d) a washing machine
  26. 26.Which of these usually has a microcontroller inside? (a) a spinning top (b) a bicycle bell (c) a hand pump (d) a washing machine
  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.🤖 What is a microcontroller? (a) a kind of bulb (b) a type of battery (c) a big desktop computer (d) a computer on one chip
  29. 29.🧭 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
  30. 30.Which of these has no microcontroller inside? (a) a candle (b) a washing machine (c) a toy robot (d) a digital thermometer
  31. 31.Which job is done by the reset button? (a) shows the board is on (b) connect sensors and LEDs (c) runs the program (d) restarts the program
  32. 32.Which of these usually has a microcontroller inside? (a) a hand pump (b) a candle (c) a plain wall switch (d) a toy robot
  33. 33.True or false: a hand pump usually has a microcontroller inside. (a) True (b) False
  34. 34.🤖 Microcontroller or laptop: which one runs many apps at once? (a) microcontroller (b) laptop
  35. 35.🤖 Does a bicycle bell usually have a microcontroller inside? (a) Yes (b) No
  36. 36.🤖 Does a hand pump usually have a microcontroller inside? (a) Yes (b) No
  37. 37.🤖 Microcontroller or laptop: which one needs much more power? (a) microcontroller (b) laptop
  38. 38.🤖 Does a spinning top usually have a microcontroller inside? (a) No (b) Yes
  39. 39.🤖 How does a new program get onto a microcontroller board? (a) typed on the chip (b) sent by sound (c) drawn with a pen (d) uploaded over USB
  40. 40.True or false: a microcontroller uses very little power. (a) False (b) True

Answer key

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

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