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Electronics Worksheet: What Is a Microcontroller

Electronics lesson 21: What is a microcontroller? · Set 580 · 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.

NameDateTime takenScore ___ / 40
  1. 1.🤖 Microcontroller or laptop: which one needs much more power? (a) microcontroller (b) laptop
  2. 2.Which job is done by the USB port? (a) runs the program (b) brings power and code (c) connect sensors and LEDs (d) restarts the program
  3. 3.True or false: a bicycle bell usually has a microcontroller inside. (a) False (b) True
  4. 4.🤖 Does a plain wall switch usually have a microcontroller inside? (a) No (b) Yes
  5. 5.True or false: a digital thermometer usually has a microcontroller inside. (a) False (b) True
  6. 6.Which of these usually has a microcontroller inside? (a) a bicycle bell (b) a wind-up toy (c) a spinning top (d) a digital alarm clock
  7. 7.Which job is done by the reset button? (a) connect sensors and LEDs (b) runs the program (c) restarts the program (d) brings power and code
  8. 8.🤖 Which is a safe power source for a beginner microcontroller board? (a) a 230 V cable (b) a wall socket directly (c) bare mains wires (d) USB or a 9 V battery
  9. 9.🤖 Where does the board keep its program when the power is off? (a) the resistor (b) the power LED (c) the USB cable (d) flash memory
  10. 10.True or false: a laptop runs one small program. (a) True (b) False
  11. 11.Which of these usually has a microcontroller inside? (a) a spinning top (b) a TV remote (c) a plain wall switch (d) a candle
  12. 12.True or false: a microcontroller runs one small program. (a) True (b) False
  13. 13.🧭 Which part of a microcontroller board runs the program? (a) the pins (b) the reset button (c) the voltage regulator (d) the main chip
  14. 14.True or false: a microcontroller has a built-in keyboard. (a) True (b) False
  15. 15.True or false: a washing machine has no microcontroller inside. (a) False (b) True
  16. 16.True or false: a digital alarm clock has no microcontroller inside. (a) True (b) False
  17. 17.🤖 Microcontroller or laptop: which one runs many apps at once? (a) microcontroller (b) laptop
  18. 18.🤖 Does a hand pump usually have a microcontroller inside? (a) No (b) Yes
  19. 19.Which of these usually has a microcontroller inside? (a) a bicycle bell (b) a wind-up toy (c) a candle (d) a smart watch
  20. 20.True or false: a candle usually has a microcontroller inside. (a) False (b) True
  21. 21.Which of these has no microcontroller inside? (a) a toy robot (b) a microwave oven (c) a washing machine (d) a bicycle bell
  22. 22.True or false: a microcontroller uses very little power. (a) True (b) False
  23. 23.Which of these has no microcontroller inside? (a) a digital thermometer (b) a toy robot (c) a spinning top (d) a microwave oven
  24. 24.True or false: a TV remote usually has a microcontroller inside. (a) False (b) True
  25. 25.🤖 Microcontroller or laptop: which one uses very little power? (a) laptop (b) microcontroller
  26. 26.True or false: a microwave oven usually has a microcontroller inside. (a) False (b) True
  27. 27.Which of these usually has a microcontroller inside? (a) a candle (b) a spinning top (c) a washing machine (d) a hand pump
  28. 28.Which job is done by the main chip? (a) connect sensors and LEDs (b) runs the program (c) brings power and code (d) shows the board is on
  29. 29.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
  30. 30.🤖 Microcontroller or laptop: which one runs one small program? (a) microcontroller (b) laptop
  31. 31.🤖 Does a smart watch usually have a microcontroller inside? (a) Yes (b) No
  32. 32.🤖 Does a TV remote usually have a microcontroller inside? (a) Yes (b) No
  33. 33.True or false: a microcontroller needs much more power. (a) True (b) False
  34. 34.Which of these has no microcontroller inside? (a) a smart watch (b) a washing machine (c) a plain wall switch (d) a microwave oven
  35. 35.🤖 Does a spinning top usually have a microcontroller inside? (a) No (b) Yes
  36. 36.🤖 Does a washing machine usually have a microcontroller inside? (a) No (b) Yes
  37. 37.🧭 Which part of a microcontroller board restarts the program? (a) the reset button (b) the pins (c) the USB port (d) the main chip
  38. 38.Which of these usually has a microcontroller inside? (a) a spinning top (b) a bicycle bell (c) a plain wall switch (d) a toy robot
  39. 39.True or false: a bicycle bell has no microcontroller inside. (a) False (b) True
  40. 40.True or false: a microwave oven has no microcontroller inside. (a) False (b) True

Answer key

  1. laptop
  2. brings power and code
  3. False
  4. No
  5. True
  6. a digital alarm clock
  7. restarts the program
  8. USB or a 9 V battery
  9. flash memory
  10. False
  11. a TV remote
  12. True
  13. the main chip
  14. False
  15. False
  16. False
  17. laptop
  18. No
  19. a smart watch
  20. False
  21. a bicycle bell
  22. True
  23. a spinning top
  24. True
  25. microcontroller
  26. True
  27. a washing machine
  28. runs the program
  29. connect sensors and LEDs
  30. microcontroller
  31. Yes
  32. Yes
  33. False
  34. a plain wall switch
  35. No
  36. Yes
  37. the reset button
  38. a toy robot
  39. True
  40. False

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