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Electronics Worksheet: What Is a Microcontroller

Electronics lesson 21: What is a microcontroller? · Set 130 · 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 USB port? (a) connect sensors and LEDs (b) brings power and code (c) runs the program (d) keeps the voltage steady
  2. 2.🤖 Where does the board keep its program when the power is off? (a) the power LED (b) flash memory (c) the resistor (d) the USB cable
  3. 3.Which of these usually has a microcontroller inside? (a) a bicycle bell (b) a candle (c) a digital alarm clock (d) a spinning top
  4. 4.🤖 Does a plain wall switch usually have a microcontroller inside? (a) No (b) Yes
  5. 5.🤖 Does a digital alarm clock usually have a microcontroller inside? (a) No (b) Yes
  6. 6.🤖 Microcontroller or laptop: which one has a built-in keyboard? (a) microcontroller (b) laptop
  7. 7.🤖 Does a wind-up toy usually have a microcontroller inside? (a) No (b) Yes
  8. 8.🤖 Microcontroller or laptop: which one needs much more power? (a) microcontroller (b) laptop
  9. 9.Which of these usually has a microcontroller inside? (a) a spinning top (b) a hand pump (c) a candle (d) a TV remote
  10. 10.🤖 Microcontroller or laptop: which one uses very little power? (a) microcontroller (b) laptop
  11. 11.Which of these has no microcontroller inside? (a) a washing machine (b) a spinning top (c) a smart watch (d) a TV remote
  12. 12.Which of these has no microcontroller inside? (a) a microwave oven (b) a smart watch (c) a wind-up toy (d) a digital alarm clock
  13. 13.🤖 Which is a safe power source for a beginner microcontroller board? (a) a wall socket directly (b) a 230 V cable (c) bare mains wires (d) USB or a 9 V battery
  14. 14.🤖 Does a toy robot usually have a microcontroller inside? (a) Yes (b) No
  15. 15.True or false: a microcontroller needs much more power. (a) False (b) True
  16. 16.True or false: a microcontroller uses very little power. (a) False (b) True
  17. 17.True or false: a laptop uses very little power. (a) False (b) True
  18. 18.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
  19. 19.Which of these usually has a microcontroller inside? (a) a candle (b) a washing machine (c) a bicycle bell (d) a wind-up toy
  20. 20.True or false: a bicycle bell usually has a microcontroller inside. (a) True (b) False
  21. 21.🧭 Which part of a microcontroller board connect sensors and LEDs? (a) the USB port (b) the power LED (c) the pins (d) the voltage regulator
  22. 22.Which of these has no microcontroller inside? (a) a digital thermometer (b) a microwave oven (c) a TV remote (d) a hand pump
  23. 23.Which of these has no microcontroller inside? (a) a bicycle bell (b) a digital thermometer (c) a microwave oven (d) a washing machine
  24. 24.🧭 Which part of a microcontroller board restarts the program? (a) the power LED (b) the USB port (c) the reset button (d) the voltage regulator
  25. 25.True or false: a TV remote has no microcontroller inside. (a) True (b) False
  26. 26.Which of these usually has a microcontroller inside? (a) a microwave oven (b) a bicycle bell (c) a wind-up toy (d) a plain wall switch
  27. 27.🤖 Microcontroller or laptop: which one has no screen of its own? (a) laptop (b) microcontroller
  28. 28.True or false: a toy robot usually has a microcontroller inside. (a) False (b) True
  29. 29.🤖 When the main loop of a microcontroller program ends, what happens? (a) the board breaks (b) it stops forever (c) it deletes itself (d) it starts again
  30. 30.🤖 Microcontroller or laptop: which one runs many apps at once? (a) microcontroller (b) laptop
  31. 31.Which of these usually has a microcontroller inside? (a) a bicycle bell (b) a plain wall switch (c) a smart watch (d) a spinning top
  32. 32.🧭 Which part of a microcontroller board brings power and code? (a) the reset button (b) the main chip (c) the power LED (d) the USB port
  33. 33.🤖 Does a smart watch usually have a microcontroller inside? (a) Yes (b) No
  34. 34.🤖 Microcontroller or laptop: which one runs one small program? (a) microcontroller (b) laptop
  35. 35.🤖 Does a bicycle bell usually have a microcontroller inside? (a) Yes (b) No
  36. 36.🧭 Which part of a microcontroller board runs the program? (a) the reset button (b) the pins (c) the main chip (d) the voltage regulator
  37. 37.🤖 What is a microcontroller? (a) a kind of bulb (b) a type of battery (c) a computer on one chip (d) a big desktop computer
  38. 38.Which job is done by the reset button? (a) brings power and code (b) shows the board is on (c) keeps the voltage steady (d) restarts the program
  39. 39.Which of these usually has a microcontroller inside? (a) a toy robot (b) a candle (c) a plain wall switch (d) a hand pump
  40. 40.True or false: a spinning top has no microcontroller inside. (a) True (b) False

Answer key

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

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