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Electronics Worksheet: What Is a Microcontroller

Electronics lesson 21: What is a microcontroller? · Set 549 · 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 of these usually has a microcontroller inside? (a) a wind-up toy (b) a candle (c) a bicycle bell (d) a TV remote
  2. 2.Which of these usually has a microcontroller inside? (a) a candle (b) a digital thermometer (c) a plain wall switch (d) a spinning top
  3. 3.Which of these usually has a microcontroller inside? (a) a wind-up toy (b) a candle (c) a microwave oven (d) a bicycle bell
  4. 4.Which job is done by the main chip? (a) brings power and code (b) keeps the voltage steady (c) restarts the program (d) runs the program
  5. 5.🤖 Microcontroller or laptop: which one needs much more power? (a) laptop (b) microcontroller
  6. 6.🤖 Where does the board keep its program when the power is off? (a) the resistor (b) the power LED (c) flash memory (d) the USB cable
  7. 7.Which of these has no microcontroller inside? (a) a digital alarm clock (b) a bicycle bell (c) a smart watch (d) a microwave oven
  8. 8.True or false: a laptop has a built-in keyboard. (a) True (b) False
  9. 9.🧭 Which part of a microcontroller board restarts the program? (a) the reset button (b) the pins (c) the main chip (d) the voltage regulator
  10. 10.Which of these has no microcontroller inside? (a) a smart watch (b) a washing machine (c) a wind-up toy (d) a toy robot
  11. 11.🤖 Does a spinning top usually have a microcontroller inside? (a) Yes (b) No
  12. 12.Which job is done by the reset button? (a) runs the program (b) shows the board is on (c) restarts the program (d) brings power and code
  13. 13.🤖 Microcontroller or laptop: which one uses very little power? (a) laptop (b) microcontroller
  14. 14.🤖 Does a TV remote usually have a microcontroller inside? (a) Yes (b) No
  15. 15.🤖 Does a candle usually have a microcontroller inside? (a) No (b) Yes
  16. 16.True or false: a laptop runs many apps at once. (a) True (b) False
  17. 17.🧭 Which part of a microcontroller board shows the board is on? (a) the voltage regulator (b) the USB port (c) the main chip (d) the power LED
  18. 18.True or false: a washing machine usually has a microcontroller inside. (a) False (b) True
  19. 19.🤖 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
  20. 20.🤖 Microcontroller or laptop: which one has a built-in keyboard? (a) microcontroller (b) laptop
  21. 21.🤖 Does a smart watch usually have a microcontroller inside? (a) No (b) Yes
  22. 22.🤖 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
  23. 23.Which job is done by the pins? (a) connect sensors and LEDs (b) brings power and code (c) shows the board is on (d) keeps the voltage steady
  24. 24.True or false: a microcontroller runs one small program. (a) True (b) False
  25. 25.🤖 Does a digital alarm clock usually have a microcontroller inside? (a) No (b) Yes
  26. 26.True or false: a digital thermometer usually has a microcontroller inside. (a) True (b) False
  27. 27.Which of these usually has a microcontroller inside? (a) a plain wall switch (b) a smart watch (c) a spinning top (d) a bicycle bell
  28. 28.🧭 Which part of a microcontroller board brings power and code? (a) the power LED (b) the reset button (c) the USB port (d) the pins
  29. 29.True or false: a laptop uses very little power. (a) True (b) False
  30. 30.🧭 Which part of a microcontroller board runs the program? (a) the main chip (b) the pins (c) the power LED (d) the USB port
  31. 31.🤖 Microcontroller or laptop: which one has no screen of its own? (a) laptop (b) microcontroller
  32. 32.Which job is done by the voltage regulator? (a) connect sensors and LEDs (b) keeps the voltage steady (c) brings power and code (d) restarts the program
  33. 33.🤖 Microcontroller or laptop: which one runs many apps at once? (a) laptop (b) microcontroller
  34. 34.🤖 Microcontroller or laptop: which one runs one small program? (a) laptop (b) microcontroller
  35. 35.True or false: a laptop needs much more power. (a) True (b) False
  36. 36.Which of these usually has a microcontroller inside? (a) a candle (b) a wind-up toy (c) a digital alarm clock (d) a plain wall switch
  37. 37.True or false: a microcontroller runs many apps at once. (a) False (b) True
  38. 38.Which job is done by the USB port? (a) restarts the program (b) brings power and code (c) connect sensors and LEDs (d) shows the board is on
  39. 39.True or false: a toy robot usually has a microcontroller inside. (a) False (b) True
  40. 40.🤖 Does a plain wall switch usually have a microcontroller inside? (a) Yes (b) No

Answer key

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

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