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Electronics Worksheet: What Is a Microcontroller

Electronics lesson 21: What is a microcontroller? · Set 148 · 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 reset button? (a) restarts the program (b) brings power and code (c) keeps the voltage steady (d) shows the board is on
  2. 2.🧭 Which part of a microcontroller board shows the board is on? (a) the main chip (b) the pins (c) the USB port (d) the power LED
  3. 3.🤖 Microcontroller or laptop: which one runs one small program? (a) laptop (b) microcontroller
  4. 4.Which job is done by the main chip? (a) brings power and code (b) connect sensors and LEDs (c) runs the program (d) restarts the program
  5. 5.🤖 Microcontroller or laptop: which one has no screen of its own? (a) laptop (b) microcontroller
  6. 6.True or false: a bicycle bell has no microcontroller inside. (a) True (b) False
  7. 7.Which job is done by the voltage regulator? (a) brings power and code (b) keeps the voltage steady (c) shows the board is on (d) runs the program
  8. 8.True or false: a digital alarm clock usually has a microcontroller inside. (a) False (b) True
  9. 9.Which job is done by the power LED? (a) restarts the program (b) shows the board is on (c) runs the program (d) connect sensors and LEDs
  10. 10.🧭 Which part of a microcontroller board keeps the voltage steady? (a) the USB port (b) the pins (c) the voltage regulator (d) the reset button
  11. 11.🤖 Does a candle usually have a microcontroller inside? (a) Yes (b) No
  12. 12.🤖 Does a wind-up toy usually have a microcontroller inside? (a) No (b) Yes
  13. 13.🤖 Does a smart watch usually have a microcontroller inside? (a) Yes (b) No
  14. 14.🤖 When the main loop of a microcontroller program ends, what happens? (a) it deletes itself (b) it stops forever (c) the board breaks (d) it starts again
  15. 15.🤖 Where does the board keep its program when the power is off? (a) the power LED (b) the USB cable (c) flash memory (d) the resistor
  16. 16.🤖 Microcontroller or laptop: which one needs much more power? (a) microcontroller (b) laptop
  17. 17.True or false: a microcontroller has a built-in keyboard. (a) True (b) False
  18. 18.True or false: a laptop runs many apps at once. (a) False (b) True
  19. 19.Which job is done by the pins? (a) runs the program (b) brings power and code (c) shows the board is on (d) connect sensors and LEDs
  20. 20.🧭 Which part of a microcontroller board connect sensors and LEDs? (a) the USB port (b) the pins (c) the main chip (d) the power LED
  21. 21.True or false: a microcontroller needs much more power. (a) True (b) False
  22. 22.Which of these has no microcontroller inside? (a) a toy robot (b) a smart watch (c) a washing machine (d) a hand pump
  23. 23.🤖 Does a plain wall switch usually have a microcontroller inside? (a) No (b) Yes
  24. 24.True or false: a wind-up toy usually has a microcontroller inside. (a) True (b) False
  25. 25.True or false: a laptop needs much more power. (a) True (b) False
  26. 26.🤖 Does a hand pump usually have a microcontroller inside? (a) Yes (b) No
  27. 27.Which of these usually has a microcontroller inside? (a) a digital thermometer (b) a hand pump (c) a spinning top (d) a bicycle bell
  28. 28.True or false: a microcontroller runs many apps at once. (a) True (b) False
  29. 29.True or false: a plain wall switch has no microcontroller inside. (a) False (b) True
  30. 30.🧭 Which part of a microcontroller board runs the program? (a) the main chip (b) the voltage regulator (c) the reset button (d) the power LED
  31. 31.🤖 Microcontroller or laptop: which one runs many apps at once? (a) microcontroller (b) laptop
  32. 32.🤖 Does a TV remote usually have a microcontroller inside? (a) No (b) Yes
  33. 33.🤖 What is a microcontroller? (a) a big desktop computer (b) a kind of bulb (c) a computer on one chip (d) a type of battery
  34. 34.True or false: a laptop uses very little power. (a) True (b) False
  35. 35.True or false: a laptop has a built-in keyboard. (a) True (b) False
  36. 36.🤖 Does a digital thermometer usually have a microcontroller inside? (a) No (b) Yes
  37. 37.Which of these usually has a microcontroller inside? (a) a digital alarm clock (b) a candle (c) a hand pump (d) a wind-up toy
  38. 38.Which of these usually has a microcontroller inside? (a) a TV remote (b) a candle (c) a hand pump (d) a wind-up toy
  39. 39.🤖 Microcontroller or laptop: which one uses very little power? (a) microcontroller (b) laptop
  40. 40.True or false: a microcontroller uses very little power. (a) False (b) True

Answer key

  1. restarts the program
  2. the power LED
  3. microcontroller
  4. runs the program
  5. microcontroller
  6. True
  7. keeps the voltage steady
  8. True
  9. shows the board is on
  10. the voltage regulator
  11. No
  12. No
  13. Yes
  14. it starts again
  15. flash memory
  16. laptop
  17. False
  18. True
  19. connect sensors and LEDs
  20. the pins
  21. False
  22. a hand pump
  23. No
  24. False
  25. True
  26. No
  27. a digital thermometer
  28. False
  29. True
  30. the main chip
  31. laptop
  32. Yes
  33. a computer on one chip
  34. False
  35. True
  36. Yes
  37. a digital alarm clock
  38. a TV remote
  39. microcontroller
  40. True

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