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Electronics Worksheet: What Is a Microcontroller

Electronics lesson 21: What is a microcontroller? · Set 713 · 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.True or false: a laptop uses very little power. (a) True (b) False
  2. 2.🧭 Which part of a microcontroller board keeps the voltage steady? (a) the USB port (b) the reset button (c) the voltage regulator (d) the pins
  3. 3.🤖 Where does the board keep its program when the power is off? (a) flash memory (b) the power LED (c) the USB cable (d) the resistor
  4. 4.Which job is done by the main chip? (a) shows the board is on (b) restarts the program (c) keeps the voltage steady (d) runs the program
  5. 5.🤖 Does a TV remote usually have a microcontroller inside? (a) No (b) Yes
  6. 6.Which of these has no microcontroller inside? (a) a toy robot (b) a washing machine (c) a hand pump (d) a TV remote
  7. 7.Which of these usually has a microcontroller inside? (a) a bicycle bell (b) a washing machine (c) a hand pump (d) a wind-up toy
  8. 8.True or false: a candle usually has a microcontroller inside. (a) True (b) False
  9. 9.True or false: a washing machine usually has a microcontroller inside. (a) False (b) True
  10. 10.🧭 Which part of a microcontroller board restarts the program? (a) the power LED (b) the reset button (c) the pins (d) the voltage regulator
  11. 11.Which of these has no microcontroller inside? (a) a TV remote (b) a microwave oven (c) a plain wall switch (d) a smart watch
  12. 12.True or false: a washing machine has no microcontroller inside. (a) False (b) True
  13. 13.🤖 Does a washing machine usually have a microcontroller inside? (a) No (b) Yes
  14. 14.Which of these usually has a microcontroller inside? (a) a toy robot (b) a plain wall switch (c) a bicycle bell (d) a spinning top
  15. 15.True or false: a microcontroller runs one small program. (a) False (b) True
  16. 16.True or false: a microwave oven has no microcontroller inside. (a) False (b) True
  17. 17.True or false: a wind-up toy usually has a microcontroller inside. (a) True (b) False
  18. 18.🤖 Which is a safe power source for a beginner microcontroller board? (a) a 230 V cable (b) USB or a 9 V battery (c) bare mains wires (d) a wall socket directly
  19. 19.Which of these usually has a microcontroller inside? (a) a candle (b) a digital thermometer (c) a hand pump (d) a bicycle bell
  20. 20.🧭 Which part of a microcontroller board brings power and code? (a) the reset button (b) the voltage regulator (c) the main chip (d) the USB port
  21. 21.Which of these has no microcontroller inside? (a) a microwave oven (b) a digital thermometer (c) a digital alarm clock (d) a bicycle bell
  22. 22.🧭 Which part of a microcontroller board connect sensors and LEDs? (a) the USB port (b) the power LED (c) the voltage regulator (d) the pins
  23. 23.Which job is done by the USB port? (a) connect sensors and LEDs (b) restarts the program (c) brings power and code (d) runs the program
  24. 24.True or false: a spinning top has no microcontroller inside. (a) True (b) False
  25. 25.True or false: a microcontroller needs much more power. (a) False (b) True
  26. 26.🤖 What is a microcontroller? (a) a big desktop computer (b) a type of battery (c) a computer on one chip (d) a kind of bulb
  27. 27.True or false: a laptop runs many apps at once. (a) True (b) False
  28. 28.Which of these usually has a microcontroller inside? (a) a microwave oven (b) a wind-up toy (c) a bicycle bell (d) a spinning top
  29. 29.🤖 Microcontroller or laptop: which one runs many apps at once? (a) laptop (b) microcontroller
  30. 30.True or false: a microcontroller has no screen of its own. (a) False (b) True
  31. 31.True or false: a microcontroller has a built-in keyboard. (a) True (b) False
  32. 32.True or false: a laptop has a built-in keyboard. (a) False (b) True
  33. 33.🤖 Does a digital thermometer usually have a microcontroller inside? (a) Yes (b) No
  34. 34.🤖 Microcontroller or laptop: which one runs one small program? (a) laptop (b) microcontroller
  35. 35.🤖 Does a wind-up toy usually have a microcontroller inside? (a) Yes (b) No
  36. 36.Which of these usually has a microcontroller inside? (a) a wind-up toy (b) a candle (c) a spinning top (d) a TV remote
  37. 37.True or false: a microcontroller runs many apps at once. (a) True (b) False
  38. 38.True or false: a TV remote usually has a microcontroller inside. (a) True (b) False
  39. 39.True or false: a digital thermometer has no microcontroller inside. (a) False (b) True
  40. 40.🤖 Microcontroller or laptop: which one has no screen of its own? (a) microcontroller (b) laptop

Answer key

  1. False
  2. the voltage regulator
  3. flash memory
  4. runs the program
  5. Yes
  6. a hand pump
  7. a washing machine
  8. False
  9. True
  10. the reset button
  11. a plain wall switch
  12. False
  13. Yes
  14. a toy robot
  15. True
  16. False
  17. False
  18. USB or a 9 V battery
  19. a digital thermometer
  20. the USB port
  21. a bicycle bell
  22. the pins
  23. brings power and code
  24. True
  25. False
  26. a computer on one chip
  27. True
  28. a microwave oven
  29. laptop
  30. True
  31. False
  32. True
  33. Yes
  34. microcontroller
  35. No
  36. a TV remote
  37. False
  38. True
  39. False
  40. microcontroller

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