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Electronics Worksheet: What Is a Microcontroller

Electronics lesson 21: What is a microcontroller? · Set 658 · 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 reset button? (a) shows the board is on (b) brings power and code (c) runs the program (d) restarts the program
  2. 2.Which of these has no microcontroller inside? (a) a washing machine (b) a microwave oven (c) a spinning top (d) a smart watch
  3. 3.True or false: a laptop has no screen of its own. (a) False (b) True
  4. 4.🤖 Microcontroller or laptop: which one has no screen of its own? (a) microcontroller (b) laptop
  5. 5.🤖 Which is a safe power source for a beginner microcontroller board? (a) a wall socket directly (b) bare mains wires (c) USB or a 9 V battery (d) a 230 V cable
  6. 6.Which of these usually has a microcontroller inside? (a) a digital thermometer (b) a plain wall switch (c) a hand pump (d) a bicycle bell
  7. 7.🤖 Microcontroller or laptop: which one uses very little power? (a) laptop (b) microcontroller
  8. 8.🤖 Does a smart watch usually have a microcontroller inside? (a) No (b) Yes
  9. 9.🤖 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
  10. 10.🤖 Microcontroller or laptop: which one runs one small program? (a) laptop (b) microcontroller
  11. 11.True or false: a smart watch has no microcontroller inside. (a) False (b) True
  12. 12.Which job is done by the pins? (a) shows the board is on (b) connect sensors and LEDs (c) runs the program (d) keeps the voltage steady
  13. 13.Which job is done by the main chip? (a) brings power and code (b) restarts the program (c) runs the program (d) keeps the voltage steady
  14. 14.Which job is done by the USB port? (a) brings power and code (b) restarts the program (c) runs the program (d) connect sensors and LEDs
  15. 15.🤖 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
  16. 16.🤖 Does a bicycle bell usually have a microcontroller inside? (a) No (b) Yes
  17. 17.True or false: a laptop needs much more power. (a) True (b) False
  18. 18.🤖 Does a spinning top usually have a microcontroller inside? (a) No (b) Yes
  19. 19.True or false: a microcontroller needs much more power. (a) True (b) False
  20. 20.True or false: a laptop has a built-in keyboard. (a) False (b) True
  21. 21.True or false: a smart watch usually has a microcontroller inside. (a) False (b) True
  22. 22.True or false: a toy robot has no microcontroller inside. (a) False (b) True
  23. 23.True or false: a hand pump has no microcontroller inside. (a) False (b) True
  24. 24.🧭 Which part of a microcontroller board connect sensors and LEDs? (a) the voltage regulator (b) the pins (c) the main chip (d) the USB port
  25. 25.True or false: a laptop runs many apps at once. (a) True (b) False
  26. 26.True or false: a digital thermometer has no microcontroller inside. (a) False (b) True
  27. 27.🧭 Which part of a microcontroller board brings power and code? (a) the power LED (b) the main chip (c) the USB port (d) the voltage regulator
  28. 28.Which of these has no microcontroller inside? (a) a digital alarm clock (b) a smart watch (c) a wind-up toy (d) a microwave oven
  29. 29.🧭 Which part of a microcontroller board shows the board is on? (a) the power LED (b) the voltage regulator (c) the reset button (d) the main chip
  30. 30.Which of these has no microcontroller inside? (a) a washing machine (b) a TV remote (c) a bicycle bell (d) a digital alarm clock
  31. 31.🤖 Does a candle usually have a microcontroller inside? (a) Yes (b) No
  32. 32.Which of these usually has a microcontroller inside? (a) a bicycle bell (b) a spinning top (c) a microwave oven (d) a wind-up toy
  33. 33.True or false: a microcontroller uses very little power. (a) False (b) True
  34. 34.🤖 Does a digital thermometer usually have a microcontroller inside? (a) No (b) Yes
  35. 35.Which of these usually has a microcontroller inside? (a) a bicycle bell (b) a spinning top (c) a hand pump (d) a washing machine
  36. 36.🤖 Does a digital alarm clock usually have a microcontroller inside? (a) Yes (b) No
  37. 37.🧭 Which part of a microcontroller board runs the program? (a) the pins (b) the USB port (c) the reset button (d) the main chip
  38. 38.True or false: a digital alarm clock usually has a microcontroller inside. (a) True (b) False
  39. 39.🤖 Microcontroller or laptop: which one runs many apps at once? (a) laptop (b) microcontroller
  40. 40.Which job is done by the voltage regulator? (a) brings power and code (b) keeps the voltage steady (c) runs the program (d) connect sensors and LEDs

Answer key

  1. restarts the program
  2. a spinning top
  3. False
  4. microcontroller
  5. USB or a 9 V battery
  6. a digital thermometer
  7. microcontroller
  8. Yes
  9. uploaded over USB
  10. microcontroller
  11. False
  12. connect sensors and LEDs
  13. runs the program
  14. brings power and code
  15. flash memory
  16. No
  17. True
  18. No
  19. False
  20. True
  21. True
  22. False
  23. True
  24. the pins
  25. True
  26. False
  27. the USB port
  28. a wind-up toy
  29. the power LED
  30. a bicycle bell
  31. No
  32. a microwave oven
  33. True
  34. Yes
  35. a washing machine
  36. Yes
  37. the main chip
  38. True
  39. laptop
  40. keeps the voltage steady

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