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Electronics Worksheet: What Is a Microcontroller

Electronics lesson 21: What is a microcontroller? · Set 691 · 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.🤖 Does a spinning top usually have a microcontroller inside? (a) Yes (b) No
  2. 2.🤖 Does a digital alarm clock usually have a microcontroller inside? (a) Yes (b) No
  3. 3.True or false: a spinning top has no microcontroller inside. (a) False (b) True
  4. 4.True or false: a toy robot usually has a microcontroller inside. (a) False (b) True
  5. 5.🧭 Which part of a microcontroller board shows the board is on? (a) the main chip (b) the power LED (c) the reset button (d) the USB port
  6. 6.🤖 Microcontroller or laptop: which one uses very little power? (a) microcontroller (b) laptop
  7. 7.🤖 Microcontroller or laptop: which one runs one small program? (a) laptop (b) microcontroller
  8. 8.🤖 Which is a safe power source for a beginner microcontroller board? (a) bare mains wires (b) a wall socket directly (c) a 230 V cable (d) USB or a 9 V battery
  9. 9.🤖 Does a toy robot usually have a microcontroller inside? (a) No (b) Yes
  10. 10.Which of these has no microcontroller inside? (a) a hand pump (b) a smart watch (c) a digital thermometer (d) a digital alarm clock
  11. 11.🧭 Which part of a microcontroller board keeps the voltage steady? (a) the pins (b) the main chip (c) the USB port (d) the voltage regulator
  12. 12.Which job is done by the pins? (a) brings power and code (b) runs the program (c) keeps the voltage steady (d) connect sensors and LEDs
  13. 13.Which of these usually has a microcontroller inside? (a) a wind-up toy (b) a bicycle bell (c) a TV remote (d) a spinning top
  14. 14.True or false: a microwave oven usually has a microcontroller inside. (a) False (b) True
  15. 15.True or false: a digital thermometer usually has a microcontroller inside. (a) False (b) True
  16. 16.🤖 Does a bicycle bell usually have a microcontroller inside? (a) Yes (b) No
  17. 17.🤖 Does a smart watch usually have a microcontroller inside? (a) Yes (b) No
  18. 18.True or false: a digital thermometer has no microcontroller inside. (a) False (b) True
  19. 19.🧭 Which part of a microcontroller board brings power and code? (a) the power LED (b) the USB port (c) the main chip (d) the voltage regulator
  20. 20.🤖 Microcontroller or laptop: which one runs many apps at once? (a) microcontroller (b) laptop
  21. 21.Which of these has no microcontroller inside? (a) a wind-up toy (b) a toy robot (c) a washing machine (d) a microwave oven
  22. 22.True or false: a laptop has no screen of its own. (a) True (b) False
  23. 23.Which job is done by the USB port? (a) runs the program (b) keeps the voltage steady (c) brings power and code (d) restarts the program
  24. 24.Which job is done by the main chip? (a) shows the board is on (b) runs the program (c) brings power and code (d) restarts the program
  25. 25.True or false: a digital alarm clock usually has a microcontroller inside. (a) False (b) True
  26. 26.🤖 Where does the board keep its program when the power is off? (a) the USB cable (b) flash memory (c) the power LED (d) the resistor
  27. 27.Which of these has no microcontroller inside? (a) a digital alarm clock (b) a washing machine (c) a spinning top (d) a TV remote
  28. 28.Which of these has no microcontroller inside? (a) a candle (b) a digital alarm clock (c) a toy robot (d) a washing machine
  29. 29.🤖 Does a digital thermometer usually have a microcontroller inside? (a) Yes (b) No
  30. 30.True or false: a candle usually has a microcontroller inside. (a) False (b) True
  31. 31.Which job is done by the reset button? (a) brings power and code (b) restarts the program (c) runs the program (d) keeps the voltage steady
  32. 32.Which of these has no microcontroller inside? (a) a washing machine (b) a bicycle bell (c) a toy robot (d) a TV remote
  33. 33.🤖 Does a wind-up toy usually have a microcontroller inside? (a) No (b) Yes
  34. 34.True or false: a plain wall switch has no microcontroller inside. (a) True (b) False
  35. 35.🤖 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
  36. 36.True or false: a laptop has a built-in keyboard. (a) False (b) True
  37. 37.🤖 Does a microwave oven usually have a microcontroller inside? (a) Yes (b) No
  38. 38.Which of these usually has a microcontroller inside? (a) a plain wall switch (b) a bicycle bell (c) a toy robot (d) a wind-up toy
  39. 39.True or false: a toy robot has no microcontroller inside. (a) False (b) True
  40. 40.True or false: a microcontroller runs many apps at once. (a) True (b) False

Answer key

  1. No
  2. Yes
  3. True
  4. True
  5. the power LED
  6. microcontroller
  7. microcontroller
  8. USB or a 9 V battery
  9. Yes
  10. a hand pump
  11. the voltage regulator
  12. connect sensors and LEDs
  13. a TV remote
  14. True
  15. True
  16. No
  17. Yes
  18. False
  19. the USB port
  20. laptop
  21. a wind-up toy
  22. False
  23. brings power and code
  24. runs the program
  25. True
  26. flash memory
  27. a spinning top
  28. a candle
  29. Yes
  30. False
  31. restarts the program
  32. a bicycle bell
  33. No
  34. True
  35. it starts again
  36. True
  37. Yes
  38. a toy robot
  39. False
  40. False

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