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Electronics Worksheet: What Is a Microcontroller

Electronics lesson 21: What is a microcontroller? · Set 434 · 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 USB port? (a) connect sensors and LEDs (b) runs the program (c) shows the board is on (d) brings power and code
  2. 2.True or false: a laptop runs many apps at once. (a) False (b) True
  3. 3.🤖 Microcontroller or laptop: which one has no screen of its own? (a) laptop (b) microcontroller
  4. 4.Which job is done by the voltage regulator? (a) connect sensors and LEDs (b) restarts the program (c) brings power and code (d) keeps the voltage steady
  5. 5.🤖 Microcontroller or laptop: which one has a built-in keyboard? (a) laptop (b) microcontroller
  6. 6.Which of these usually has a microcontroller inside? (a) a digital thermometer (b) a bicycle bell (c) a wind-up toy (d) a spinning top
  7. 7.Which of these usually has a microcontroller inside? (a) a hand pump (b) a wind-up toy (c) a bicycle bell (d) a washing machine
  8. 8.🧭 Which part of a microcontroller board brings power and code? (a) the power LED (b) the USB port (c) the reset button (d) the pins
  9. 9.Which of these has no microcontroller inside? (a) a toy robot (b) a washing machine (c) a microwave oven (d) a wind-up toy
  10. 10.True or false: a smart watch has no microcontroller inside. (a) False (b) True
  11. 11.🤖 What is a microcontroller? (a) a computer on one chip (b) a big desktop computer (c) a kind of bulb (d) a type of battery
  12. 12.🤖 Does a plain wall switch usually have a microcontroller inside? (a) Yes (b) No
  13. 13.True or false: a spinning top has no microcontroller inside. (a) True (b) False
  14. 14.Which job is done by the pins? (a) connect sensors and LEDs (b) shows the board is on (c) keeps the voltage steady (d) restarts the program
  15. 15.True or false: a digital thermometer usually has a microcontroller inside. (a) False (b) True
  16. 16.🧭 Which part of a microcontroller board keeps the voltage steady? (a) the power LED (b) the voltage regulator (c) the USB port (d) the pins
  17. 17.Which job is done by the main chip? (a) shows the board is on (b) connect sensors and LEDs (c) runs the program (d) restarts the program
  18. 18.True or false: a laptop runs one small program. (a) True (b) False
  19. 19.Which of these usually has a microcontroller inside? (a) a bicycle bell (b) a spinning top (c) a candle (d) a digital alarm clock
  20. 20.🤖 Microcontroller or laptop: which one runs one small program? (a) microcontroller (b) laptop
  21. 21.🤖 Which is a safe power source for a beginner microcontroller board? (a) bare mains wires (b) a wall socket directly (c) USB or a 9 V battery (d) a 230 V cable
  22. 22.🤖 Does a TV remote usually have a microcontroller inside? (a) Yes (b) No
  23. 23.True or false: a microcontroller has a built-in keyboard. (a) False (b) True
  24. 24.🤖 When the main loop of a microcontroller program ends, what happens? (a) it stops forever (b) it deletes itself (c) the board breaks (d) it starts again
  25. 25.🤖 Does a bicycle bell usually have a microcontroller inside? (a) Yes (b) No
  26. 26.Which job is done by the power LED? (a) restarts the program (b) keeps the voltage steady (c) connect sensors and LEDs (d) shows the board is on
  27. 27.Which of these has no microcontroller inside? (a) a microwave oven (b) a smart watch (c) a candle (d) a digital alarm clock
  28. 28.🤖 Does a digital alarm clock usually have a microcontroller inside? (a) No (b) Yes
  29. 29.🧭 Which part of a microcontroller board connect sensors and LEDs? (a) the main chip (b) the voltage regulator (c) the USB port (d) the pins
  30. 30.🤖 Does a hand pump usually have a microcontroller inside? (a) Yes (b) No
  31. 31.Which of these usually has a microcontroller inside? (a) a plain wall switch (b) a microwave oven (c) a candle (d) a bicycle bell
  32. 32.🤖 Microcontroller or laptop: which one uses very little power? (a) laptop (b) microcontroller
  33. 33.🤖 Does a wind-up toy usually have a microcontroller inside? (a) Yes (b) No
  34. 34.True or false: a laptop needs much more power. (a) True (b) False
  35. 35.True or false: a microwave oven usually has a microcontroller inside. (a) True (b) False
  36. 36.🧭 Which part of a microcontroller board restarts the program? (a) the voltage regulator (b) the main chip (c) the USB port (d) the reset button
  37. 37.🤖 Does a washing machine usually have a microcontroller inside? (a) No (b) Yes
  38. 38.🤖 Does a smart watch usually have a microcontroller inside? (a) No (b) Yes
  39. 39.True or false: a microcontroller has no screen of its own. (a) True (b) False
  40. 40.True or false: a toy robot usually has a microcontroller inside. (a) True (b) False

Answer key

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

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