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Electronics Worksheet: What Is a Microcontroller

Electronics lesson 21: What is a microcontroller? · Set 119 · 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) keeps the voltage steady (c) connect sensors and LEDs (d) restarts the program
  2. 2.Which of these usually has a microcontroller inside? (a) a wind-up toy (b) a spinning top (c) a plain wall switch (d) a toy robot
  3. 3.True or false: a laptop runs one small program. (a) True (b) False
  4. 4.🤖 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
  5. 5.🧭 Which part of a microcontroller board keeps the voltage steady? (a) the pins (b) the power LED (c) the reset button (d) the voltage regulator
  6. 6.🧭 Which part of a microcontroller board shows the board is on? (a) the USB port (b) the power LED (c) the main chip (d) the reset button
  7. 7.True or false: a TV remote usually has a microcontroller inside. (a) False (b) True
  8. 8.Which of these has no microcontroller inside? (a) a hand pump (b) a microwave oven (c) a smart watch (d) a TV remote
  9. 9.Which job is done by the power LED? (a) shows the board is on (b) runs the program (c) connect sensors and LEDs (d) restarts the program
  10. 10.Which job is done by the main chip? (a) runs the program (b) brings power and code (c) keeps the voltage steady (d) connect sensors and LEDs
  11. 11.Which job is done by the USB port? (a) brings power and code (b) shows the board is on (c) keeps the voltage steady (d) restarts the program
  12. 12.🧭 Which part of a microcontroller board brings power and code? (a) the reset button (b) the voltage regulator (c) the USB port (d) the power LED
  13. 13.🤖 Does a spinning top usually have a microcontroller inside? (a) Yes (b) No
  14. 14.Which of these usually has a microcontroller inside? (a) a hand pump (b) a TV remote (c) a wind-up toy (d) a candle
  15. 15.🤖 Does a digital thermometer usually have a microcontroller inside? (a) Yes (b) No
  16. 16.Which of these has no microcontroller inside? (a) a washing machine (b) a spinning top (c) a TV remote (d) a digital thermometer
  17. 17.True or false: a laptop has no screen of its own. (a) False (b) True
  18. 18.True or false: a smart watch has no microcontroller inside. (a) True (b) False
  19. 19.🧭 Which part of a microcontroller board runs the program? (a) the USB port (b) the voltage regulator (c) the reset button (d) the main chip
  20. 20.🤖 Does a wind-up toy usually have a microcontroller inside? (a) No (b) Yes
  21. 21.True or false: a microcontroller runs many apps at once. (a) True (b) False
  22. 22.True or false: a toy robot has no microcontroller inside. (a) False (b) True
  23. 23.True or false: a bicycle bell usually has a microcontroller inside. (a) False (b) True
  24. 24.🤖 Does a toy robot usually have a microcontroller inside? (a) Yes (b) No
  25. 25.True or false: a smart watch usually has a microcontroller inside. (a) True (b) False
  26. 26.Which job is done by the reset button? (a) restarts the program (b) shows the board is on (c) brings power and code (d) connect sensors and LEDs
  27. 27.Which of these has no microcontroller inside? (a) a digital alarm clock (b) a TV remote (c) a smart watch (d) a plain wall switch
  28. 28.True or false: a spinning top has no microcontroller inside. (a) False (b) True
  29. 29.🤖 Where does the board keep its program when the power is off? (a) the USB cable (b) the power LED (c) flash memory (d) the resistor
  30. 30.🤖 Microcontroller or laptop: which one needs much more power? (a) laptop (b) microcontroller
  31. 31.Which of these usually has a microcontroller inside? (a) a washing machine (b) a spinning top (c) a wind-up toy (d) a hand pump
  32. 32.Which of these usually has a microcontroller inside? (a) a spinning top (b) a bicycle bell (c) a digital alarm clock (d) a candle
  33. 33.🤖 Does a washing machine usually have a microcontroller inside? (a) No (b) Yes
  34. 34.🧭 Which part of a microcontroller board connect sensors and LEDs? (a) the USB port (b) the voltage regulator (c) the pins (d) the main chip
  35. 35.🤖 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
  36. 36.🤖 Does a bicycle bell usually have a microcontroller inside? (a) Yes (b) No
  37. 37.🤖 Does a smart watch usually have a microcontroller inside? (a) No (b) Yes
  38. 38.True or false: a microcontroller has no screen of its own. (a) False (b) True
  39. 39.True or false: a laptop needs much more power. (a) False (b) True
  40. 40.🤖 Microcontroller or laptop: which one uses very little power? (a) microcontroller (b) laptop

Answer key

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

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