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Electronics Worksheet: What Is a Microcontroller

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

Answer key

  1. True
  2. flash memory
  3. laptop
  4. a wind-up toy
  5. a bicycle bell
  6. True
  7. No
  8. a smart watch
  9. a candle
  10. False
  11. False
  12. Yes
  13. False
  14. the reset button
  15. a toy robot
  16. restarts the program
  17. a computer on one chip
  18. False
  19. the pins
  20. No
  21. runs the program
  22. Yes
  23. False
  24. Yes
  25. False
  26. a digital thermometer
  27. False
  28. uploaded over USB
  29. keeps the voltage steady
  30. False
  31. True
  32. the main chip
  33. the power LED
  34. a spinning top
  35. Yes
  36. Yes
  37. False
  38. laptop
  39. USB or a 9 V battery
  40. the voltage regulator

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