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Electronics Worksheet: What Is a Microcontroller

Electronics lesson 21: What is a microcontroller? · Set 490 · 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 job is done by the main chip? (a) brings power and code (b) shows the board is on (c) runs the program (d) connect sensors and LEDs
  2. 2.🧭 Which part of a microcontroller board runs the program? (a) the USB port (b) the pins (c) the reset button (d) the main chip
  3. 3.🧭 Which part of a microcontroller board brings power and code? (a) the reset button (b) the voltage regulator (c) the main chip (d) the USB port
  4. 4.🤖 Does a hand pump usually have a microcontroller inside? (a) Yes (b) No
  5. 5.🤖 Which is a safe power source for a beginner microcontroller board? (a) a 230 V cable (b) a wall socket directly (c) bare mains wires (d) USB or a 9 V battery
  6. 6.🤖 Microcontroller or laptop: which one runs one small program? (a) microcontroller (b) laptop
  7. 7.🤖 Does a digital alarm clock usually have a microcontroller inside? (a) Yes (b) No
  8. 8.True or false: a laptop runs one small program. (a) True (b) False
  9. 9.🧭 Which part of a microcontroller board connect sensors and LEDs? (a) the reset button (b) the main chip (c) the USB port (d) the pins
  10. 10.🤖 Microcontroller or laptop: which one needs much more power? (a) laptop (b) microcontroller
  11. 11.Which job is done by the pins? (a) brings power and code (b) keeps the voltage steady (c) connect sensors and LEDs (d) shows the board is on
  12. 12.🤖 Does a microwave oven usually have a microcontroller inside? (a) No (b) Yes
  13. 13.🤖 Microcontroller or laptop: which one has no screen of its own? (a) microcontroller (b) laptop
  14. 14.🤖 How does a new program get onto a microcontroller board? (a) uploaded over USB (b) typed on the chip (c) sent by sound (d) drawn with a pen
  15. 15.🤖 Does a TV remote usually have a microcontroller inside? (a) Yes (b) No
  16. 16.🧭 Which part of a microcontroller board shows the board is on? (a) the pins (b) the reset button (c) the power LED (d) the voltage regulator
  17. 17.Which of these usually has a microcontroller inside? (a) a TV remote (b) a plain wall switch (c) a spinning top (d) a hand pump
  18. 18.Which of these has no microcontroller inside? (a) a hand pump (b) a toy robot (c) a TV remote (d) a digital thermometer
  19. 19.🤖 Does a bicycle bell usually have a microcontroller inside? (a) No (b) Yes
  20. 20.Which of these has no microcontroller inside? (a) a digital alarm clock (b) a plain wall switch (c) a smart watch (d) a toy robot
  21. 21.True or false: a laptop uses very little power. (a) True (b) False
  22. 22.🧭 Which part of a microcontroller board keeps the voltage steady? (a) the reset button (b) the USB port (c) the main chip (d) the voltage regulator
  23. 23.True or false: a laptop runs many apps at once. (a) False (b) True
  24. 24.True or false: a hand pump has no microcontroller inside. (a) True (b) False
  25. 25.🤖 Does a spinning top usually have a microcontroller inside? (a) No (b) Yes
  26. 26.True or false: a microcontroller has a built-in keyboard. (a) True (b) False
  27. 27.True or false: a microcontroller has no screen of its own. (a) True (b) False
  28. 28.🤖 What is a microcontroller? (a) a kind of bulb (b) a big desktop computer (c) a type of battery (d) a computer on one chip
  29. 29.Which job is done by the USB port? (a) shows the board is on (b) restarts the program (c) brings power and code (d) keeps the voltage steady
  30. 30.True or false: a plain wall switch usually has a microcontroller inside. (a) False (b) True
  31. 31.Which of these has no microcontroller inside? (a) a microwave oven (b) a smart watch (c) a TV remote (d) a candle
  32. 32.True or false: a laptop has a built-in keyboard. (a) False (b) True
  33. 33.🤖 Does a digital thermometer usually have a microcontroller inside? (a) No (b) Yes
  34. 34.🤖 When the main loop of a microcontroller program ends, what happens? (a) it stops forever (b) the board breaks (c) it starts again (d) it deletes itself
  35. 35.Which job is done by the voltage regulator? (a) connect sensors and LEDs (b) keeps the voltage steady (c) runs the program (d) brings power and code
  36. 36.🤖 Microcontroller or laptop: which one has a built-in keyboard? (a) microcontroller (b) laptop
  37. 37.🤖 Does a candle usually have a microcontroller inside? (a) No (b) Yes
  38. 38.🤖 Does a plain wall switch usually have a microcontroller inside? (a) Yes (b) No
  39. 39.Which of these has no microcontroller inside? (a) a toy robot (b) a TV remote (c) a washing machine (d) a bicycle bell
  40. 40.True or false: a microcontroller runs many apps at once. (a) True (b) False

Answer key

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

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