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Electronics Worksheet: What Is a Microcontroller

Electronics lesson 21: What is a microcontroller? · Set 116 · 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 job is done by the USB port? (a) keeps the voltage steady (b) runs the program (c) connect sensors and LEDs (d) brings power and code
  2. 2.Which job is done by the main chip? (a) restarts the program (b) runs the program (c) shows the board is on (d) keeps the voltage steady
  3. 3.Which job is done by the pins? (a) connect sensors and LEDs (b) runs the program (c) keeps the voltage steady (d) restarts the program
  4. 4.True or false: a laptop has a built-in keyboard. (a) True (b) False
  5. 5.Which job is done by the power LED? (a) runs the program (b) shows the board is on (c) keeps the voltage steady (d) restarts the program
  6. 6.🤖 Does a digital alarm clock usually have a microcontroller inside? (a) No (b) Yes
  7. 7.True or false: a washing machine has no microcontroller inside. (a) True (b) False
  8. 8.🤖 Does a digital thermometer usually have a microcontroller inside? (a) No (b) Yes
  9. 9.🤖 Does a washing machine usually have a microcontroller inside? (a) No (b) Yes
  10. 10.Which of these usually has a microcontroller inside? (a) a wind-up toy (b) a microwave oven (c) a spinning top (d) a candle
  11. 11.True or false: a smart watch usually has a microcontroller inside. (a) False (b) True
  12. 12.True or false: a laptop runs many apps at once. (a) False (b) True
  13. 13.True or false: a microcontroller has a built-in keyboard. (a) False (b) True
  14. 14.🤖 Microcontroller or laptop: which one runs one small program? (a) microcontroller (b) laptop
  15. 15.🤖 Does a TV remote usually have a microcontroller inside? (a) No (b) Yes
  16. 16.🧭 Which part of a microcontroller board keeps the voltage steady? (a) the voltage regulator (b) the power LED (c) the main chip (d) the reset button
  17. 17.Which of these has no microcontroller inside? (a) a digital alarm clock (b) a hand pump (c) a TV remote (d) a digital thermometer
  18. 18.True or false: a microwave oven usually has a microcontroller inside. (a) True (b) False
  19. 19.🤖 Does a wind-up toy usually have a microcontroller inside? (a) Yes (b) No
  20. 20.🤖 How does a new program get onto a microcontroller board? (a) uploaded over USB (b) drawn with a pen (c) sent by sound (d) typed on the chip
  21. 21.🧭 Which part of a microcontroller board restarts the program? (a) the voltage regulator (b) the main chip (c) the power LED (d) the reset button
  22. 22.True or false: a toy robot has no microcontroller inside. (a) True (b) False
  23. 23.🧭 Which part of a microcontroller board connect sensors and LEDs? (a) the USB port (b) the reset button (c) the voltage regulator (d) the pins
  24. 24.🤖 Does a smart watch usually have a microcontroller inside? (a) No (b) Yes
  25. 25.True or false: a laptop has no screen of its own. (a) False (b) True
  26. 26.Which of these has no microcontroller inside? (a) a TV remote (b) a digital alarm clock (c) a digital thermometer (d) a bicycle bell
  27. 27.🧭 Which part of a microcontroller board shows the board is on? (a) the voltage regulator (b) the reset button (c) the power LED (d) the pins
  28. 28.True or false: a digital alarm clock has no microcontroller inside. (a) False (b) True
  29. 29.🤖 What is a microcontroller? (a) a kind of bulb (b) a computer on one chip (c) a type of battery (d) a big desktop computer
  30. 30.Which of these usually has a microcontroller inside? (a) a wind-up toy (b) a digital alarm clock (c) a bicycle bell (d) a plain wall switch
  31. 31.🤖 Microcontroller or laptop: which one runs many apps at once? (a) laptop (b) microcontroller
  32. 32.Which of these usually has a microcontroller inside? (a) a spinning top (b) a hand pump (c) a wind-up toy (d) a TV remote
  33. 33.Which of these has no microcontroller inside? (a) a microwave oven (b) a wind-up toy (c) a TV remote (d) a digital thermometer
  34. 34.True or false: a microcontroller has no screen of its own. (a) True (b) False
  35. 35.Which of these has no microcontroller inside? (a) a TV remote (b) a toy robot (c) a candle (d) a digital thermometer
  36. 36.True or false: a microcontroller runs many apps at once. (a) True (b) False
  37. 37.True or false: a microcontroller uses very little power. (a) False (b) True
  38. 38.🤖 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
  39. 39.True or false: a digital alarm clock usually has a microcontroller inside. (a) True (b) False
  40. 40.Which of these usually has a microcontroller inside? (a) a wind-up toy (b) a bicycle bell (c) a spinning top (d) a washing machine

Answer key

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

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