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Electronics Worksheet: What Is a Microcontroller

Electronics lesson 21: What is a microcontroller? · Set 741 · 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.🤖 Does a hand pump usually have a microcontroller inside? (a) Yes (b) No
  2. 2.Which job is done by the voltage regulator? (a) shows the board is on (b) brings power and code (c) restarts the program (d) keeps the voltage steady
  3. 3.Which job is done by the main chip? (a) shows the board is on (b) brings power and code (c) runs the program (d) connect sensors and LEDs
  4. 4.True or false: a TV remote usually has a microcontroller inside. (a) True (b) False
  5. 5.🧭 Which part of a microcontroller board restarts the program? (a) the voltage regulator (b) the USB port (c) the main chip (d) the reset button
  6. 6.True or false: a microcontroller runs many apps at once. (a) False (b) True
  7. 7.Which of these has no microcontroller inside? (a) a TV remote (b) a digital thermometer (c) a microwave oven (d) a wind-up toy
  8. 8.True or false: a laptop runs one small program. (a) True (b) False
  9. 9.🤖 Microcontroller or laptop: which one runs one small program? (a) microcontroller (b) laptop
  10. 10.True or false: a microcontroller has no screen of its own. (a) True (b) False
  11. 11.🤖 When the main loop of a microcontroller program ends, what happens? (a) it deletes itself (b) it starts again (c) it stops forever (d) the board breaks
  12. 12.🤖 Microcontroller or laptop: which one uses very little power? (a) microcontroller (b) laptop
  13. 13.🤖 Microcontroller or laptop: which one runs many apps at once? (a) microcontroller (b) laptop
  14. 14.Which of these has no microcontroller inside? (a) a microwave oven (b) a smart watch (c) a hand pump (d) a washing machine
  15. 15.True or false: a laptop has no screen of its own. (a) False (b) True
  16. 16.🤖 Where does the board keep its program when the power is off? (a) the power LED (b) the resistor (c) flash memory (d) the USB cable
  17. 17.True or false: a laptop uses very little power. (a) False (b) True
  18. 18.True or false: a microcontroller uses very little power. (a) True (b) False
  19. 19.True or false: a microcontroller runs one small program. (a) True (b) False
  20. 20.🤖 Does a washing machine usually have a microcontroller inside? (a) Yes (b) No
  21. 21.🧭 Which part of a microcontroller board runs the program? (a) the power LED (b) the pins (c) the main chip (d) the reset button
  22. 22.🤖 Does a wind-up toy usually have a microcontroller inside? (a) Yes (b) No
  23. 23.True or false: a smart watch usually has a microcontroller inside. (a) False (b) True
  24. 24.🧭 Which part of a microcontroller board keeps the voltage steady? (a) the voltage regulator (b) the reset button (c) the main chip (d) the USB port
  25. 25.True or false: a toy robot has no microcontroller inside. (a) True (b) False
  26. 26.🤖 What is a microcontroller? (a) a type of battery (b) a big desktop computer (c) a kind of bulb (d) a computer on one chip
  27. 27.Which of these usually has a microcontroller inside? (a) a candle (b) a hand pump (c) a spinning top (d) a digital thermometer
  28. 28.Which of these has no microcontroller inside? (a) a microwave oven (b) a digital alarm clock (c) a digital thermometer (d) a candle
  29. 29.True or false: a laptop has a built-in keyboard. (a) False (b) True
  30. 30.Which job is done by the power LED? (a) restarts the program (b) keeps the voltage steady (c) shows the board is on (d) runs the program
  31. 31.🧭 Which part of a microcontroller board connect sensors and LEDs? (a) the voltage regulator (b) the USB port (c) the reset button (d) the pins
  32. 32.Which job is done by the USB port? (a) shows the board is on (b) brings power and code (c) connect sensors and LEDs (d) restarts the program
  33. 33.Which of these has no microcontroller inside? (a) a digital alarm clock (b) a microwave oven (c) a washing machine (d) a bicycle bell
  34. 34.🤖 Does a bicycle bell usually have a microcontroller inside? (a) Yes (b) No
  35. 35.Which of these usually has a microcontroller inside? (a) a spinning top (b) a plain wall switch (c) a candle (d) a toy robot
  36. 36.Which of these usually has a microcontroller inside? (a) a microwave oven (b) a hand pump (c) a spinning top (d) a wind-up toy
  37. 37.Which job is done by the reset button? (a) shows the board is on (b) restarts the program (c) runs the program (d) connect sensors and LEDs
  38. 38.🤖 Does a digital thermometer usually have a microcontroller inside? (a) No (b) Yes
  39. 39.🧭 Which part of a microcontroller board shows the board is on? (a) the main chip (b) the USB port (c) the pins (d) the power LED
  40. 40.True or false: a digital thermometer usually has a microcontroller inside. (a) False (b) True

Answer key

  1. No
  2. keeps the voltage steady
  3. runs the program
  4. True
  5. the reset button
  6. False
  7. a wind-up toy
  8. False
  9. microcontroller
  10. True
  11. it starts again
  12. microcontroller
  13. laptop
  14. a hand pump
  15. False
  16. flash memory
  17. False
  18. True
  19. True
  20. Yes
  21. the main chip
  22. No
  23. True
  24. the voltage regulator
  25. False
  26. a computer on one chip
  27. a digital thermometer
  28. a candle
  29. True
  30. shows the board is on
  31. the pins
  32. brings power and code
  33. a bicycle bell
  34. No
  35. a toy robot
  36. a microwave oven
  37. restarts the program
  38. Yes
  39. the power LED
  40. True

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