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Electronics Worksheet: What Is a Microcontroller

Electronics lesson 21: What is a microcontroller? · Set 541 · 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 hand pump (b) a TV remote (c) a smart watch (d) a microwave oven
  2. 2.True or false: a microcontroller needs much more power. (a) False (b) True
  3. 3.🤖 Microcontroller or laptop: which one runs many apps at once? (a) microcontroller (b) laptop
  4. 4.🤖 Microcontroller or laptop: which one runs one small program? (a) laptop (b) microcontroller
  5. 5.🤖 When the main loop of a microcontroller program ends, what happens? (a) the board breaks (b) it deletes itself (c) it starts again (d) it stops forever
  6. 6.🧭 Which part of a microcontroller board connect sensors and LEDs? (a) the pins (b) the main chip (c) the reset button (d) the USB port
  7. 7.True or false: a microcontroller has a built-in keyboard. (a) True (b) False
  8. 8.Which of these usually has a microcontroller inside? (a) a bicycle bell (b) a wind-up toy (c) a microwave oven (d) a candle
  9. 9.True or false: a wind-up toy usually has a microcontroller inside. (a) True (b) False
  10. 10.🤖 Does a hand pump usually have a microcontroller inside? (a) Yes (b) No
  11. 11.🧭 Which part of a microcontroller board keeps the voltage steady? (a) the power LED (b) the pins (c) the voltage regulator (d) the reset button
  12. 12.🤖 Microcontroller or laptop: which one has no screen of its own? (a) laptop (b) microcontroller
  13. 13.🤖 Does a plain wall switch usually have a microcontroller inside? (a) No (b) Yes
  14. 14.🤖 How does a new program get onto a microcontroller board? (a) sent by sound (b) typed on the chip (c) uploaded over USB (d) drawn with a pen
  15. 15.🤖 Microcontroller or laptop: which one has a built-in keyboard? (a) laptop (b) microcontroller
  16. 16.Which of these has no microcontroller inside? (a) a microwave oven (b) a TV remote (c) a smart watch (d) a wind-up toy
  17. 17.True or false: a laptop uses very little power. (a) True (b) False
  18. 18.🤖 Does a digital thermometer usually have a microcontroller inside? (a) No (b) Yes
  19. 19.🧭 Which part of a microcontroller board shows the board is on? (a) the main chip (b) the power LED (c) the pins (d) the USB port
  20. 20.🤖 What is a microcontroller? (a) a type of battery (b) a computer on one chip (c) a big desktop computer (d) a kind of bulb
  21. 21.🤖 Does a smart watch usually have a microcontroller inside? (a) Yes (b) No
  22. 22.True or false: a laptop has no screen of its own. (a) True (b) False
  23. 23.🤖 Does a toy robot usually have a microcontroller inside? (a) No (b) Yes
  24. 24.🧭 Which part of a microcontroller board runs the program? (a) the reset button (b) the pins (c) the main chip (d) the voltage regulator
  25. 25.🤖 Does a bicycle bell usually have a microcontroller inside? (a) Yes (b) No
  26. 26.🤖 Which is a safe power source for a beginner microcontroller board? (a) a wall socket directly (b) bare mains wires (c) a 230 V cable (d) USB or a 9 V battery
  27. 27.Which of these usually has a microcontroller inside? (a) a washing machine (b) a wind-up toy (c) a candle (d) a spinning top
  28. 28.🤖 Does a wind-up toy usually have a microcontroller inside? (a) Yes (b) No
  29. 29.True or false: a laptop has a built-in keyboard. (a) False (b) True
  30. 30.True or false: a microcontroller runs one small program. (a) True (b) False
  31. 31.Which job is done by the USB port? (a) connect sensors and LEDs (b) runs the program (c) brings power and code (d) restarts the program
  32. 32.Which of these usually has a microcontroller inside? (a) a bicycle bell (b) a spinning top (c) a candle (d) a digital thermometer
  33. 33.Which job is done by the reset button? (a) restarts the program (b) connect sensors and LEDs (c) brings power and code (d) keeps the voltage steady
  34. 34.True or false: a hand pump usually has a microcontroller inside. (a) False (b) True
  35. 35.True or false: a TV remote usually has a microcontroller inside. (a) False (b) True
  36. 36.True or false: a microcontroller runs many apps at once. (a) True (b) False
  37. 37.True or false: a microwave oven has no microcontroller inside. (a) True (b) False
  38. 38.Which job is done by the main chip? (a) runs the program (b) connect sensors and LEDs (c) restarts the program (d) shows the board is on
  39. 39.🧭 Which part of a microcontroller board brings power and code? (a) the USB port (b) the reset button (c) the voltage regulator (d) the pins
  40. 40.Which of these has no microcontroller inside? (a) a microwave oven (b) a toy robot (c) a TV remote (d) a candle

Answer key

  1. a hand pump
  2. False
  3. laptop
  4. microcontroller
  5. it starts again
  6. the pins
  7. False
  8. a microwave oven
  9. False
  10. No
  11. the voltage regulator
  12. microcontroller
  13. No
  14. uploaded over USB
  15. laptop
  16. a wind-up toy
  17. False
  18. Yes
  19. the power LED
  20. a computer on one chip
  21. Yes
  22. False
  23. Yes
  24. the main chip
  25. No
  26. USB or a 9 V battery
  27. a washing machine
  28. No
  29. True
  30. True
  31. brings power and code
  32. a digital thermometer
  33. restarts the program
  34. False
  35. True
  36. False
  37. False
  38. runs the program
  39. the USB port
  40. a candle

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