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Electronics Worksheet: What Is a Microcontroller

Electronics lesson 21: What is a microcontroller? · Set 250 · 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 plain wall switch usually have a microcontroller inside? (a) No (b) Yes
  2. 2.🤖 Microcontroller or laptop: which one needs much more power? (a) laptop (b) microcontroller
  3. 3.🤖 How does a new program get onto a microcontroller board? (a) drawn with a pen (b) sent by sound (c) typed on the chip (d) uploaded over USB
  4. 4.🧭 Which part of a microcontroller board shows the board is on? (a) the main chip (b) the USB port (c) the power LED (d) the reset button
  5. 5.🧭 Which part of a microcontroller board restarts the program? (a) the voltage regulator (b) the pins (c) the main chip (d) the reset button
  6. 6.🤖 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
  7. 7.Which job is done by the main chip? (a) shows the board is on (b) brings power and code (c) runs the program (d) restarts the program
  8. 8.🤖 Which is a safe power source for a beginner microcontroller board? (a) a 230 V cable (b) bare mains wires (c) USB or a 9 V battery (d) a wall socket directly
  9. 9.Which of these usually has a microcontroller inside? (a) a candle (b) a bicycle bell (c) a plain wall switch (d) a smart watch
  10. 10.🤖 Does a bicycle bell usually have a microcontroller inside? (a) Yes (b) No
  11. 11.Which of these usually has a microcontroller inside? (a) a plain wall switch (b) a wind-up toy (c) a TV remote (d) a bicycle bell
  12. 12.🤖 Microcontroller or laptop: which one has a built-in keyboard? (a) microcontroller (b) laptop
  13. 13.True or false: a microcontroller runs one small program. (a) True (b) False
  14. 14.True or false: a digital alarm clock has no microcontroller inside. (a) False (b) True
  15. 15.Which of these has no microcontroller inside? (a) a smart watch (b) a toy robot (c) a plain wall switch (d) a digital alarm clock
  16. 16.True or false: a microwave oven has no microcontroller inside. (a) False (b) True
  17. 17.🧭 Which part of a microcontroller board keeps the voltage steady? (a) the USB port (b) the reset button (c) the pins (d) the voltage regulator
  18. 18.🤖 Does a candle usually have a microcontroller inside? (a) Yes (b) No
  19. 19.Which job is done by the USB port? (a) runs the program (b) connect sensors and LEDs (c) brings power and code (d) shows the board is on
  20. 20.Which of these usually has a microcontroller inside? (a) a bicycle bell (b) a spinning top (c) a digital alarm clock (d) a plain wall switch
  21. 21.🤖 Does a washing machine usually have a microcontroller inside? (a) No (b) Yes
  22. 22.True or false: a laptop runs many apps at once. (a) True (b) False
  23. 23.Which of these usually has a microcontroller inside? (a) a spinning top (b) a hand pump (c) a bicycle bell (d) a microwave oven
  24. 24.🧭 Which part of a microcontroller board connect sensors and LEDs? (a) the main chip (b) the USB port (c) the voltage regulator (d) the pins
  25. 25.🤖 Microcontroller or laptop: which one runs one small program? (a) laptop (b) microcontroller
  26. 26.True or false: a microcontroller has a built-in keyboard. (a) True (b) False
  27. 27.Which of these usually has a microcontroller inside? (a) a bicycle bell (b) a washing machine (c) a wind-up toy (d) a candle
  28. 28.True or false: a TV remote usually has a microcontroller inside. (a) False (b) True
  29. 29.True or false: a candle usually has a microcontroller inside. (a) True (b) False
  30. 30.🤖 Microcontroller or laptop: which one uses very little power? (a) laptop (b) microcontroller
  31. 31.🧭 Which part of a microcontroller board runs the program? (a) the USB port (b) the power LED (c) the voltage regulator (d) the main chip
  32. 32.True or false: a washing machine usually has a microcontroller inside. (a) False (b) True
  33. 33.True or false: a toy robot usually has a microcontroller inside. (a) True (b) False
  34. 34.Which of these usually has a microcontroller inside? (a) a toy robot (b) a candle (c) a plain wall switch (d) a bicycle bell
  35. 35.Which of these has no microcontroller inside? (a) a TV remote (b) a toy robot (c) a microwave oven (d) a wind-up toy
  36. 36.True or false: a laptop has a built-in keyboard. (a) True (b) False
  37. 37.🤖 Does a spinning top usually have a microcontroller inside? (a) No (b) Yes
  38. 38.🤖 Does a hand pump usually have a microcontroller inside? (a) No (b) Yes
  39. 39.🤖 What is a microcontroller? (a) a computer on one chip (b) a kind of bulb (c) a big desktop computer (d) a type of battery
  40. 40.True or false: a microcontroller needs much more power. (a) True (b) False

Answer key

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

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