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Electronics Worksheet: What Is a Microcontroller

Electronics lesson 21: What is a microcontroller? · Set 193 · 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.🤖 Microcontroller or laptop: which one uses very little power? (a) microcontroller (b) laptop
  2. 2.🧭 Which part of a microcontroller board brings power and code? (a) the USB port (b) the pins (c) the main chip (d) the reset button
  3. 3.Which of these has no microcontroller inside? (a) a digital thermometer (b) a microwave oven (c) a TV remote (d) a wind-up toy
  4. 4.Which job is done by the reset button? (a) shows the board is on (b) restarts the program (c) keeps the voltage steady (d) runs the program
  5. 5.🤖 Does a plain wall switch usually have a microcontroller inside? (a) No (b) Yes
  6. 6.Which job is done by the USB port? (a) shows the board is on (b) connect sensors and LEDs (c) restarts the program (d) brings power and code
  7. 7.🤖 Microcontroller or laptop: which one runs one small program? (a) microcontroller (b) laptop
  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.True or false: a TV remote has no microcontroller inside. (a) False (b) True
  10. 10.🤖 Does a TV remote usually have a microcontroller inside? (a) Yes (b) No
  11. 11.🤖 Where does the board keep its program when the power is off? (a) the USB cable (b) the resistor (c) the power LED (d) flash memory
  12. 12.🤖 How does a new program get onto a microcontroller board? (a) typed on the chip (b) uploaded over USB (c) drawn with a pen (d) sent by sound
  13. 13.🧭 Which part of a microcontroller board connect sensors and LEDs? (a) the voltage regulator (b) the power LED (c) the USB port (d) the pins
  14. 14.🧭 Which part of a microcontroller board keeps the voltage steady? (a) the voltage regulator (b) the pins (c) the USB port (d) the main chip
  15. 15.Which of these has no microcontroller inside? (a) a washing machine (b) a microwave oven (c) a hand pump (d) a toy robot
  16. 16.🤖 Does a digital alarm clock usually have a microcontroller inside? (a) No (b) Yes
  17. 17.True or false: a candle has no microcontroller inside. (a) True (b) False
  18. 18.Which of these usually has a microcontroller inside? (a) a candle (b) a washing machine (c) a wind-up toy (d) a plain wall switch
  19. 19.🤖 Does a toy robot usually have a microcontroller inside? (a) No (b) Yes
  20. 20.Which of these has no microcontroller inside? (a) a digital thermometer (b) a candle (c) a microwave oven (d) a TV remote
  21. 21.Which of these usually has a microcontroller inside? (a) a hand pump (b) a plain wall switch (c) a TV remote (d) a bicycle bell
  22. 22.🤖 Microcontroller or laptop: which one needs much more power? (a) laptop (b) microcontroller
  23. 23.True or false: a smart watch usually has a microcontroller inside. (a) True (b) False
  24. 24.🤖 Microcontroller or laptop: which one has a built-in keyboard? (a) laptop (b) microcontroller
  25. 25.Which of these has no microcontroller inside? (a) a plain wall switch (b) a digital alarm clock (c) a microwave oven (d) a toy robot
  26. 26.Which job is done by the power LED? (a) keeps the voltage steady (b) restarts the program (c) shows the board is on (d) brings power and code
  27. 27.Which of these usually has a microcontroller inside? (a) a wind-up toy (b) a candle (c) a microwave oven (d) a bicycle bell
  28. 28.🧭 Which part of a microcontroller board restarts the program? (a) the reset button (b) the main chip (c) the USB port (d) the power LED
  29. 29.🤖 When the main loop of a microcontroller program ends, what happens? (a) it deletes itself (b) it starts again (c) it stops forever (d) the board breaks
  30. 30.🤖 What is a microcontroller? (a) a computer on one chip (b) a big desktop computer (c) a type of battery (d) a kind of bulb
  31. 31.True or false: a laptop uses very little power. (a) True (b) False
  32. 32.True or false: a toy robot has no microcontroller inside. (a) False (b) True
  33. 33.True or false: a laptop has no screen of its own. (a) True (b) False
  34. 34.Which of these usually has a microcontroller inside? (a) a bicycle bell (b) a smart watch (c) a spinning top (d) a plain wall switch
  35. 35.True or false: a laptop needs much more power. (a) False (b) True
  36. 36.🧭 Which part of a microcontroller board shows the board is on? (a) the power LED (b) the voltage regulator (c) the main chip (d) the USB port
  37. 37.True or false: a toy robot usually has a microcontroller inside. (a) False (b) True
  38. 38.🤖 Microcontroller or laptop: which one runs many apps at once? (a) microcontroller (b) laptop
  39. 39.True or false: a bicycle bell has no microcontroller inside. (a) False (b) True
  40. 40.🧭 Which part of a microcontroller board runs the program? (a) the power LED (b) the USB port (c) the main chip (d) the reset button

Answer key

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

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