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Electronics Worksheet: What Is a Microcontroller

Electronics lesson 21: What is a microcontroller? · Set 83 · 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 pins? (a) runs the program (b) brings power and code (c) connect sensors and LEDs (d) restarts the program
  2. 2.🧭 Which part of a microcontroller board runs the program? (a) the voltage regulator (b) the pins (c) the main chip (d) the USB port
  3. 3.Which of these usually has a microcontroller inside? (a) a wind-up toy (b) a spinning top (c) a candle (d) a washing machine
  4. 4.Which job is done by the reset button? (a) runs the program (b) connect sensors and LEDs (c) restarts the program (d) shows the board is on
  5. 5.🤖 Microcontroller or laptop: which one has no screen of its own? (a) laptop (b) microcontroller
  6. 6.🧭 Which part of a microcontroller board brings power and code? (a) the USB port (b) the power LED (c) the voltage regulator (d) the main chip
  7. 7.🧭 Which part of a microcontroller board keeps the voltage steady? (a) the USB port (b) the voltage regulator (c) the power LED (d) the reset button
  8. 8.🤖 When the main loop of a microcontroller program ends, what happens? (a) it stops forever (b) it starts again (c) it deletes itself (d) the board breaks
  9. 9.True or false: a microcontroller has a built-in keyboard. (a) True (b) False
  10. 10.Which job is done by the main chip? (a) shows the board is on (b) connect sensors and LEDs (c) brings power and code (d) runs the program
  11. 11.🧭 Which part of a microcontroller board connect sensors and LEDs? (a) the pins (b) the main chip (c) the voltage regulator (d) the reset button
  12. 12.🤖 Does a smart watch usually have a microcontroller inside? (a) Yes (b) No
  13. 13.🤖 Does a digital alarm clock usually have a microcontroller inside? (a) No (b) Yes
  14. 14.🤖 Does a washing machine usually have a microcontroller inside? (a) Yes (b) No
  15. 15.🤖 Does a candle usually have a microcontroller inside? (a) Yes (b) No
  16. 16.True or false: a toy robot has no microcontroller inside. (a) True (b) False
  17. 17.🧭 Which part of a microcontroller board restarts the program? (a) the pins (b) the reset button (c) the main chip (d) the USB port
  18. 18.True or false: a hand pump has no microcontroller inside. (a) True (b) False
  19. 19.🤖 Does a bicycle bell usually have a microcontroller inside? (a) No (b) Yes
  20. 20.🤖 Does a plain wall switch usually have a microcontroller inside? (a) Yes (b) No
  21. 21.🤖 Microcontroller or laptop: which one has a built-in keyboard? (a) laptop (b) microcontroller
  22. 22.Which of these has no microcontroller inside? (a) a bicycle bell (b) a toy robot (c) a digital thermometer (d) a microwave oven
  23. 23.True or false: a microwave oven has no microcontroller inside. (a) True (b) False
  24. 24.🤖 How does a new program get onto a microcontroller board? (a) sent by sound (b) drawn with a pen (c) uploaded over USB (d) typed on the chip
  25. 25.🤖 What is a microcontroller? (a) a type of battery (b) a big desktop computer (c) a computer on one chip (d) a kind of bulb
  26. 26.🧭 Which part of a microcontroller board shows the board is on? (a) the main chip (b) the power LED (c) the pins (d) the voltage regulator
  27. 27.🤖 Microcontroller or laptop: which one runs one small program? (a) microcontroller (b) laptop
  28. 28.Which of these has no microcontroller inside? (a) a smart watch (b) a spinning top (c) a digital thermometer (d) a digital alarm clock
  29. 29.True or false: a laptop runs one small program. (a) True (b) False
  30. 30.🤖 Microcontroller or laptop: which one uses very little power? (a) microcontroller (b) laptop
  31. 31.True or false: a hand pump usually has a microcontroller inside. (a) True (b) False
  32. 32.Which job is done by the power LED? (a) brings power and code (b) restarts the program (c) shows the board is on (d) connect sensors and LEDs
  33. 33.Which job is done by the USB port? (a) connect sensors and LEDs (b) restarts the program (c) brings power and code (d) shows the board is on
  34. 34.Which of these usually has a microcontroller inside? (a) a hand pump (b) a bicycle bell (c) a plain wall switch (d) a digital thermometer
  35. 35.True or false: a laptop has no screen of its own. (a) False (b) True
  36. 36.Which job is done by the voltage regulator? (a) brings power and code (b) runs the program (c) restarts the program (d) keeps the voltage steady
  37. 37.🤖 Does a TV remote usually have a microcontroller inside? (a) Yes (b) No
  38. 38.Which of these usually has a microcontroller inside? (a) a hand pump (b) a smart watch (c) a spinning top (d) a wind-up toy
  39. 39.True or false: a digital thermometer has no microcontroller inside. (a) False (b) True
  40. 40.True or false: a candle usually has a microcontroller inside. (a) True (b) False

Answer key

  1. connect sensors and LEDs
  2. the main chip
  3. a washing machine
  4. restarts the program
  5. microcontroller
  6. the USB port
  7. the voltage regulator
  8. it starts again
  9. False
  10. runs the program
  11. the pins
  12. Yes
  13. Yes
  14. Yes
  15. No
  16. False
  17. the reset button
  18. True
  19. No
  20. No
  21. laptop
  22. a bicycle bell
  23. False
  24. uploaded over USB
  25. a computer on one chip
  26. the power LED
  27. microcontroller
  28. a spinning top
  29. False
  30. microcontroller
  31. False
  32. shows the board is on
  33. brings power and code
  34. a digital thermometer
  35. False
  36. keeps the voltage steady
  37. Yes
  38. a smart watch
  39. False
  40. False

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