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Electronics Worksheet: What Is a Microcontroller

Electronics lesson 21: What is a microcontroller? · Set 283 · 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) connect sensors and LEDs (b) brings power and code (c) restarts the program (d) keeps the voltage steady
  2. 2.🤖 Microcontroller or laptop: which one runs many apps at once? (a) microcontroller (b) laptop
  3. 3.True or false: a digital alarm clock has no microcontroller inside. (a) False (b) True
  4. 4.Which job is done by the pins? (a) connect sensors and LEDs (b) restarts the program (c) shows the board is on (d) runs the program
  5. 5.🤖 Microcontroller or laptop: which one has no screen of its own? (a) microcontroller (b) laptop
  6. 6.🧭 Which part of a microcontroller board shows the board is on? (a) the power LED (b) the reset button (c) the voltage regulator (d) the pins
  7. 7.True or false: a wind-up toy has no microcontroller inside. (a) False (b) True
  8. 8.True or false: a candle has no microcontroller inside. (a) True (b) False
  9. 9.🤖 When the main loop of a microcontroller program ends, what happens? (a) the board breaks (b) it starts again (c) it stops forever (d) it deletes itself
  10. 10.Which of these has no microcontroller inside? (a) a candle (b) a washing machine (c) a microwave oven (d) a smart watch
  11. 11.True or false: a toy robot usually has a microcontroller inside. (a) False (b) True
  12. 12.🤖 Does a plain wall switch usually have a microcontroller inside? (a) No (b) Yes
  13. 13.🤖 Which is a safe power source for a beginner microcontroller board? (a) bare mains wires (b) USB or a 9 V battery (c) a wall socket directly (d) a 230 V cable
  14. 14.🤖 Does a spinning top usually have a microcontroller inside? (a) Yes (b) No
  15. 15.🤖 Microcontroller or laptop: which one runs one small program? (a) microcontroller (b) laptop
  16. 16.Which job is done by the voltage regulator? (a) brings power and code (b) runs the program (c) keeps the voltage steady (d) restarts the program
  17. 17.Which of these usually has a microcontroller inside? (a) a plain wall switch (b) a wind-up toy (c) a hand pump (d) a digital alarm clock
  18. 18.Which job is done by the main chip? (a) connect sensors and LEDs (b) restarts the program (c) runs the program (d) keeps the voltage steady
  19. 19.True or false: a microcontroller uses very little power. (a) False (b) True
  20. 20.🤖 Does a TV remote usually have a microcontroller inside? (a) Yes (b) No
  21. 21.🧭 Which part of a microcontroller board brings power and code? (a) the USB port (b) the voltage regulator (c) the pins (d) the reset button
  22. 22.🧭 Which part of a microcontroller board runs the program? (a) the main chip (b) the reset button (c) the voltage regulator (d) the power LED
  23. 23.🤖 Does a candle usually have a microcontroller inside? (a) Yes (b) No
  24. 24.True or false: a digital thermometer usually has a microcontroller inside. (a) True (b) False
  25. 25.🤖 Microcontroller or laptop: which one uses very little power? (a) laptop (b) microcontroller
  26. 26.🤖 Does a digital alarm clock usually have a microcontroller inside? (a) No (b) Yes
  27. 27.Which of these usually has a microcontroller inside? (a) a smart watch (b) a bicycle bell (c) a spinning top (d) a wind-up toy
  28. 28.🧭 Which part of a microcontroller board keeps the voltage steady? (a) the main chip (b) the voltage regulator (c) the reset button (d) the pins
  29. 29.🤖 Microcontroller or laptop: which one needs much more power? (a) microcontroller (b) laptop
  30. 30.🤖 Where does the board keep its program when the power is off? (a) the power LED (b) the resistor (c) the USB cable (d) flash memory
  31. 31.🧭 Which part of a microcontroller board connect sensors and LEDs? (a) the USB port (b) the power LED (c) the reset button (d) the pins
  32. 32.🤖 Does a bicycle bell usually have a microcontroller inside? (a) No (b) Yes
  33. 33.Which of these has no microcontroller inside? (a) a toy robot (b) a plain wall switch (c) a smart watch (d) a digital alarm clock
  34. 34.True or false: a hand pump usually has a microcontroller inside. (a) False (b) True
  35. 35.True or false: a laptop runs one small program. (a) False (b) True
  36. 36.🤖 Does a toy robot usually have a microcontroller inside? (a) Yes (b) No
  37. 37.True or false: a laptop uses very little power. (a) False (b) True
  38. 38.True or false: a microwave oven has no microcontroller inside. (a) False (b) True
  39. 39.True or false: a microcontroller has no screen of its own. (a) True (b) False
  40. 40.Which of these usually has a microcontroller inside? (a) a bicycle bell (b) a spinning top (c) a hand pump (d) a toy robot

Answer key

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

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