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Electronics Worksheet: What Is a Microcontroller

Electronics lesson 21: What is a microcontroller? · Set 452 · 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.🧭 Which part of a microcontroller board runs the program? (a) the voltage regulator (b) the USB port (c) the main chip (d) the reset button
  2. 2.🤖 Microcontroller or laptop: which one has no screen of its own? (a) laptop (b) microcontroller
  3. 3.🤖 Does a digital thermometer usually have a microcontroller inside? (a) No (b) Yes
  4. 4.Which job is done by the main chip? (a) shows the board is on (b) connect sensors and LEDs (c) runs the program (d) brings power and code
  5. 5.🧭 Which part of a microcontroller board shows the board is on? (a) the reset button (b) the power LED (c) the pins (d) the USB port
  6. 6.🤖 Does a wind-up toy usually have a microcontroller inside? (a) No (b) Yes
  7. 7.True or false: a microcontroller uses very little power. (a) False (b) True
  8. 8.🧭 Which part of a microcontroller board restarts the program? (a) the reset button (b) the voltage regulator (c) the pins (d) the main chip
  9. 9.Which job is done by the power LED? (a) runs the program (b) brings power and code (c) shows the board is on (d) connect sensors and LEDs
  10. 10.Which job is done by the reset button? (a) brings power and code (b) shows the board is on (c) connect sensors and LEDs (d) restarts the program
  11. 11.🤖 Does a toy robot usually have a microcontroller inside? (a) Yes (b) No
  12. 12.Which job is done by the pins? (a) runs the program (b) connect sensors and LEDs (c) brings power and code (d) keeps the voltage steady
  13. 13.True or false: a microcontroller runs one small program. (a) True (b) False
  14. 14.True or false: a wind-up toy has no microcontroller inside. (a) False (b) True
  15. 15.🤖 Does a smart watch usually have a microcontroller inside? (a) Yes (b) No
  16. 16.True or false: a microwave oven usually has a microcontroller inside. (a) True (b) False
  17. 17.🤖 Does a hand pump usually have a microcontroller inside? (a) Yes (b) No
  18. 18.🤖 Does a microwave oven usually have a microcontroller inside? (a) No (b) Yes
  19. 19.True or false: a laptop runs many apps at once. (a) True (b) False
  20. 20.Which of these has no microcontroller inside? (a) a washing machine (b) a toy robot (c) a candle (d) a digital alarm clock
  21. 21.🤖 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
  22. 22.True or false: a wind-up toy usually has a microcontroller inside. (a) True (b) False
  23. 23.True or false: a digital alarm clock has no microcontroller inside. (a) False (b) True
  24. 24.🤖 Does a candle usually have a microcontroller inside? (a) No (b) Yes
  25. 25.True or false: a spinning top has no microcontroller inside. (a) True (b) False
  26. 26.🤖 How does a new program get onto a microcontroller board? (a) drawn with a pen (b) typed on the chip (c) sent by sound (d) uploaded over USB
  27. 27.Which of these usually has a microcontroller inside? (a) a hand pump (b) a wind-up toy (c) a digital thermometer (d) a candle
  28. 28.🤖 Does a bicycle bell usually have a microcontroller inside? (a) Yes (b) No
  29. 29.🧭 Which part of a microcontroller board brings power and code? (a) the pins (b) the USB port (c) the power LED (d) the main chip
  30. 30.Which of these has no microcontroller inside? (a) a smart watch (b) a digital thermometer (c) a TV remote (d) a hand pump
  31. 31.🧭 Which part of a microcontroller board keeps the voltage steady? (a) the USB port (b) the main chip (c) the power LED (d) the voltage regulator
  32. 32.🤖 Microcontroller or laptop: which one runs many apps at once? (a) laptop (b) microcontroller
  33. 33.Which of these usually has a microcontroller inside? (a) a bicycle bell (b) a toy robot (c) a hand pump (d) a candle
  34. 34.🤖 Does a digital alarm clock usually have a microcontroller inside? (a) Yes (b) No
  35. 35.🤖 Microcontroller or laptop: which one has a built-in keyboard? (a) microcontroller (b) laptop
  36. 36.🤖 Where does the board keep its program when the power is off? (a) the resistor (b) the USB cable (c) flash memory (d) the power LED
  37. 37.Which job is done by the voltage regulator? (a) keeps the voltage steady (b) brings power and code (c) shows the board is on (d) runs the program
  38. 38.Which of these has no microcontroller inside? (a) a washing machine (b) a TV remote (c) a bicycle bell (d) a smart watch
  39. 39.True or false: a plain wall switch usually has a microcontroller inside. (a) True (b) False
  40. 40.🤖 Microcontroller or laptop: which one uses very little power? (a) microcontroller (b) laptop

Answer key

  1. the main chip
  2. microcontroller
  3. Yes
  4. runs the program
  5. the power LED
  6. No
  7. True
  8. the reset button
  9. shows the board is on
  10. restarts the program
  11. Yes
  12. connect sensors and LEDs
  13. True
  14. True
  15. Yes
  16. True
  17. No
  18. Yes
  19. True
  20. a candle
  21. USB or a 9 V battery
  22. False
  23. False
  24. No
  25. True
  26. uploaded over USB
  27. a digital thermometer
  28. No
  29. the USB port
  30. a hand pump
  31. the voltage regulator
  32. laptop
  33. a toy robot
  34. Yes
  35. laptop
  36. flash memory
  37. keeps the voltage steady
  38. a bicycle bell
  39. False
  40. microcontroller

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