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Electronics Worksheet: What Is a Microcontroller

Electronics lesson 21: What is a microcontroller? · Set 733 · 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 of these has no microcontroller inside? (a) a bicycle bell (b) a digital alarm clock (c) a washing machine (d) a TV remote
  2. 2.🤖 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
  3. 3.🤖 Where does the board keep its program when the power is off? (a) the USB cable (b) flash memory (c) the power LED (d) the resistor
  4. 4.Which of these usually has a microcontroller inside? (a) a candle (b) a hand pump (c) a TV remote (d) a wind-up toy
  5. 5.Which job is done by the USB port? (a) runs the program (b) restarts the program (c) shows the board is on (d) brings power and code
  6. 6.Which of these usually has a microcontroller inside? (a) a candle (b) a bicycle bell (c) a hand pump (d) a washing machine
  7. 7.Which job is done by the voltage regulator? (a) keeps the voltage steady (b) connect sensors and LEDs (c) restarts the program (d) brings power and code
  8. 8.🤖 Does a washing machine usually have a microcontroller inside? (a) Yes (b) No
  9. 9.Which of these has no microcontroller inside? (a) a digital alarm clock (b) a smart watch (c) a washing machine (d) a spinning top
  10. 10.Which of these usually has a microcontroller inside? (a) a toy robot (b) a wind-up toy (c) a hand pump (d) a candle
  11. 11.🧭 Which part of a microcontroller board connect sensors and LEDs? (a) the power LED (b) the USB port (c) the reset button (d) the pins
  12. 12.🤖 Microcontroller or laptop: which one runs one small program? (a) laptop (b) microcontroller
  13. 13.True or false: a TV remote usually has a microcontroller inside. (a) False (b) True
  14. 14.Which job is done by the reset button? (a) restarts the program (b) brings power and code (c) connect sensors and LEDs (d) shows the board is on
  15. 15.True or false: a laptop needs much more power. (a) False (b) True
  16. 16.Which job is done by the pins? (a) brings power and code (b) shows the board is on (c) restarts the program (d) connect sensors and LEDs
  17. 17.🤖 Does a microwave oven usually have a microcontroller inside? (a) No (b) Yes
  18. 18.True or false: a spinning top usually has a microcontroller inside. (a) True (b) False
  19. 19.🤖 Microcontroller or laptop: which one needs much more power? (a) microcontroller (b) laptop
  20. 20.🧭 Which part of a microcontroller board brings power and code? (a) the USB port (b) the pins (c) the voltage regulator (d) the reset button
  21. 21.True or false: a hand pump usually has a microcontroller inside. (a) True (b) False
  22. 22.🤖 What is a microcontroller? (a) a kind of bulb (b) a big desktop computer (c) a computer on one chip (d) a type of battery
  23. 23.🤖 Microcontroller or laptop: which one uses very little power? (a) laptop (b) microcontroller
  24. 24.🤖 Microcontroller or laptop: which one has no screen of its own? (a) laptop (b) microcontroller
  25. 25.Which job is done by the power LED? (a) shows the board is on (b) keeps the voltage steady (c) brings power and code (d) runs the program
  26. 26.🤖 Does a bicycle bell usually have a microcontroller inside? (a) Yes (b) No
  27. 27.Which of these usually has a microcontroller inside? (a) a bicycle bell (b) a hand pump (c) a smart watch (d) a wind-up toy
  28. 28.🤖 Does a candle usually have a microcontroller inside? (a) Yes (b) No
  29. 29.Which of these usually has a microcontroller inside? (a) a bicycle bell (b) a wind-up toy (c) a microwave oven (d) a candle
  30. 30.🧭 Which part of a microcontroller board runs the program? (a) the reset button (b) the main chip (c) the voltage regulator (d) the power LED
  31. 31.🤖 Does a toy robot usually have a microcontroller inside? (a) No (b) Yes
  32. 32.🧭 Which part of a microcontroller board shows the board is on? (a) the USB port (b) the main chip (c) the power LED (d) the pins
  33. 33.True or false: a candle usually has a microcontroller inside. (a) True (b) False
  34. 34.🤖 When the main loop of a microcontroller program ends, what happens? (a) it starts again (b) it deletes itself (c) it stops forever (d) the board breaks
  35. 35.🤖 Does a digital alarm clock usually have a microcontroller inside? (a) No (b) Yes
  36. 36.True or false: a digital thermometer has no microcontroller inside. (a) True (b) False
  37. 37.🤖 Does a spinning top usually have a microcontroller inside? (a) No (b) Yes
  38. 38.🤖 Microcontroller or laptop: which one has a built-in keyboard? (a) laptop (b) microcontroller
  39. 39.True or false: a bicycle bell has no microcontroller inside. (a) True (b) False
  40. 40.True or false: a laptop has a built-in keyboard. (a) False (b) True

Answer key

  1. a bicycle bell
  2. USB or a 9 V battery
  3. flash memory
  4. a TV remote
  5. brings power and code
  6. a washing machine
  7. keeps the voltage steady
  8. Yes
  9. a spinning top
  10. a toy robot
  11. the pins
  12. microcontroller
  13. True
  14. restarts the program
  15. True
  16. connect sensors and LEDs
  17. Yes
  18. False
  19. laptop
  20. the USB port
  21. False
  22. a computer on one chip
  23. microcontroller
  24. microcontroller
  25. shows the board is on
  26. No
  27. a smart watch
  28. No
  29. a microwave oven
  30. the main chip
  31. Yes
  32. the power LED
  33. False
  34. it starts again
  35. Yes
  36. False
  37. No
  38. laptop
  39. True
  40. True

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