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Electronics Worksheet: What Is a Microcontroller

Electronics lesson 21: What is a microcontroller? · Set 387 · 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 laptop has no screen of its own. (a) False (b) True
  2. 2.🧭 Which part of a microcontroller board connect sensors and LEDs? (a) the power LED (b) the main chip (c) the voltage regulator (d) the pins
  3. 3.Which of these usually has a microcontroller inside? (a) a wind-up toy (b) a hand pump (c) a spinning top (d) a digital alarm clock
  4. 4.True or false: a wind-up toy usually has a microcontroller inside. (a) True (b) False
  5. 5.Which job is done by the voltage regulator? (a) connect sensors and LEDs (b) runs the program (c) shows the board is on (d) keeps the voltage steady
  6. 6.True or false: a candle usually has a microcontroller inside. (a) False (b) True
  7. 7.🤖 Does a toy robot usually have a microcontroller inside? (a) No (b) Yes
  8. 8.True or false: a washing machine usually has a microcontroller inside. (a) True (b) False
  9. 9.🧭 Which part of a microcontroller board brings power and code? (a) the voltage regulator (b) the reset button (c) the USB port (d) the pins
  10. 10.Which job is done by the pins? (a) shows the board is on (b) restarts the program (c) brings power and code (d) connect sensors and LEDs
  11. 11.🧭 Which part of a microcontroller board keeps the voltage steady? (a) the power LED (b) the pins (c) the voltage regulator (d) the main chip
  12. 12.Which of these has no microcontroller inside? (a) a TV remote (b) a digital alarm clock (c) a plain wall switch (d) a toy robot
  13. 13.Which of these usually has a microcontroller inside? (a) a hand pump (b) a microwave oven (c) a plain wall switch (d) a wind-up toy
  14. 14.🧭 Which part of a microcontroller board shows the board is on? (a) the reset button (b) the USB port (c) the voltage regulator (d) the power LED
  15. 15.🤖 Microcontroller or laptop: which one uses very little power? (a) laptop (b) microcontroller
  16. 16.True or false: a digital thermometer usually has a microcontroller inside. (a) False (b) True
  17. 17.Which of these has no microcontroller inside? (a) a digital alarm clock (b) a hand pump (c) a TV remote (d) a smart watch
  18. 18.True or false: a laptop runs one small program. (a) False (b) True
  19. 19.🤖 Which is a safe power source for a beginner microcontroller board? (a) bare mains wires (b) a 230 V cable (c) USB or a 9 V battery (d) a wall socket directly
  20. 20.Which job is done by the reset button? (a) restarts the program (b) brings power and code (c) runs the program (d) connect sensors and LEDs
  21. 21.🤖 When the main loop of a microcontroller program ends, what happens? (a) it stops forever (b) the board breaks (c) it starts again (d) it deletes itself
  22. 22.🤖 Does a spinning top usually have a microcontroller inside? (a) No (b) Yes
  23. 23.Which of these usually has a microcontroller inside? (a) a digital thermometer (b) a candle (c) a hand pump (d) a plain wall switch
  24. 24.🤖 Microcontroller or laptop: which one has no screen of its own? (a) laptop (b) microcontroller
  25. 25.🤖 How does a new program get onto a microcontroller board? (a) drawn with a pen (b) uploaded over USB (c) typed on the chip (d) sent by sound
  26. 26.🤖 Does a washing machine usually have a microcontroller inside? (a) Yes (b) No
  27. 27.Which of these usually has a microcontroller inside? (a) a spinning top (b) a candle (c) a bicycle bell (d) a toy robot
  28. 28.🤖 Does a digital alarm clock usually have a microcontroller inside? (a) No (b) Yes
  29. 29.🤖 Does a microwave oven usually have a microcontroller inside? (a) No (b) Yes
  30. 30.🤖 What is a microcontroller? (a) a big desktop computer (b) a kind of bulb (c) a type of battery (d) a computer on one chip
  31. 31.True or false: a microcontroller has a built-in keyboard. (a) False (b) True
  32. 32.Which job is done by the main chip? (a) connect sensors and LEDs (b) brings power and code (c) restarts the program (d) runs the program
  33. 33.True or false: a laptop has a built-in keyboard. (a) True (b) False
  34. 34.True or false: a TV remote has no microcontroller inside. (a) True (b) False
  35. 35.🤖 Microcontroller or laptop: which one needs much more power? (a) microcontroller (b) laptop
  36. 36.Which job is done by the USB port? (a) restarts the program (b) connect sensors and LEDs (c) shows the board is on (d) brings power and code
  37. 37.True or false: a microcontroller runs one small program. (a) False (b) True
  38. 38.🤖 Does a candle usually have a microcontroller inside? (a) No (b) Yes
  39. 39.🤖 Does a wind-up toy usually have a microcontroller inside? (a) Yes (b) No
  40. 40.Which of these usually has a microcontroller inside? (a) a hand pump (b) a spinning top (c) a washing machine (d) a candle

Answer key

  1. False
  2. the pins
  3. a digital alarm clock
  4. False
  5. keeps the voltage steady
  6. False
  7. Yes
  8. True
  9. the USB port
  10. connect sensors and LEDs
  11. the voltage regulator
  12. a plain wall switch
  13. a microwave oven
  14. the power LED
  15. microcontroller
  16. True
  17. a hand pump
  18. False
  19. USB or a 9 V battery
  20. restarts the program
  21. it starts again
  22. No
  23. a digital thermometer
  24. microcontroller
  25. uploaded over USB
  26. Yes
  27. a toy robot
  28. Yes
  29. Yes
  30. a computer on one chip
  31. False
  32. runs the program
  33. True
  34. False
  35. laptop
  36. brings power and code
  37. True
  38. No
  39. No
  40. a washing machine

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