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Electronics Worksheet: What Is a Microcontroller

Electronics lesson 21: What is a microcontroller? · Set 442 · 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) connect sensors and LEDs (b) runs the program (c) keeps the voltage steady (d) restarts the program
  2. 2.🤖 Does a plain wall switch usually have a microcontroller inside? (a) Yes (b) No
  3. 3.🤖 Where does the board keep its program when the power is off? (a) the USB cable (b) the power LED (c) the resistor (d) flash memory
  4. 4.True or false: a TV remote usually has a microcontroller inside. (a) False (b) True
  5. 5.🤖 What is a microcontroller? (a) a kind of bulb (b) a big desktop computer (c) a type of battery (d) a computer on one chip
  6. 6.True or false: a washing machine usually has a microcontroller inside. (a) False (b) True
  7. 7.🤖 Does a candle usually have a microcontroller inside? (a) No (b) Yes
  8. 8.Which of these usually has a microcontroller inside? (a) a bicycle bell (b) a spinning top (c) a digital alarm clock (d) a candle
  9. 9.True or false: a wind-up toy usually has a microcontroller inside. (a) False (b) True
  10. 10.True or false: a plain wall switch usually has a microcontroller inside. (a) False (b) True
  11. 11.True or false: a digital alarm clock has no microcontroller inside. (a) True (b) False
  12. 12.Which of these usually has a microcontroller inside? (a) a spinning top (b) a candle (c) a bicycle bell (d) a TV remote
  13. 13.True or false: a laptop needs much more power. (a) False (b) True
  14. 14.🧭 Which part of a microcontroller board shows the board is on? (a) the USB port (b) the pins (c) the main chip (d) the power LED
  15. 15.🤖 Microcontroller or laptop: which one runs one small program? (a) microcontroller (b) laptop
  16. 16.🤖 Microcontroller or laptop: which one uses very little power? (a) microcontroller (b) laptop
  17. 17.🧭 Which part of a microcontroller board keeps the voltage steady? (a) the pins (b) the voltage regulator (c) the main chip (d) the USB port
  18. 18.Which job is done by the voltage regulator? (a) shows the board is on (b) brings power and code (c) connect sensors and LEDs (d) keeps the voltage steady
  19. 19.🧭 Which part of a microcontroller board connect sensors and LEDs? (a) the pins (b) the reset button (c) the power LED (d) the main chip
  20. 20.True or false: a microcontroller needs much more power. (a) False (b) True
  21. 21.Which of these has no microcontroller inside? (a) a smart watch (b) a spinning top (c) a digital alarm clock (d) a washing machine
  22. 22.True or false: a microcontroller uses very little power. (a) False (b) True
  23. 23.🤖 Which is a safe power source for a beginner microcontroller board? (a) a 230 V cable (b) bare mains wires (c) USB or a 9 V battery (d) a wall socket directly
  24. 24.True or false: a digital alarm clock usually has a microcontroller inside. (a) False (b) True
  25. 25.Which of these usually has a microcontroller inside? (a) a hand pump (b) a candle (c) a washing machine (d) a plain wall switch
  26. 26.Which job is done by the power LED? (a) connect sensors and LEDs (b) shows the board is on (c) keeps the voltage steady (d) restarts the program
  27. 27.🤖 Does a digital thermometer usually have a microcontroller inside? (a) No (b) Yes
  28. 28.Which job is done by the main chip? (a) runs the program (b) restarts the program (c) brings power and code (d) shows the board is on
  29. 29.True or false: a laptop runs many apps at once. (a) False (b) True
  30. 30.True or false: a microcontroller runs many apps at once. (a) True (b) False
  31. 31.🤖 Does a wind-up toy usually have a microcontroller inside? (a) Yes (b) No
  32. 32.True or false: a laptop has a built-in keyboard. (a) False (b) True
  33. 33.🤖 Microcontroller or laptop: which one runs many apps at once? (a) laptop (b) microcontroller
  34. 34.True or false: a hand pump has no microcontroller inside. (a) False (b) True
  35. 35.🤖 Does a toy robot usually have a microcontroller inside? (a) No (b) Yes
  36. 36.True or false: a microcontroller runs one small program. (a) False (b) True
  37. 37.🤖 Does a spinning top usually have a microcontroller inside? (a) Yes (b) No
  38. 38.🧭 Which part of a microcontroller board runs the program? (a) the voltage regulator (b) the USB port (c) the reset button (d) the main chip
  39. 39.Which job is done by the USB port? (a) keeps the voltage steady (b) runs the program (c) shows the board is on (d) brings power and code
  40. 40.Which of these has no microcontroller inside? (a) a TV remote (b) a candle (c) a smart watch (d) a digital alarm clock

Answer key

  1. restarts the program
  2. No
  3. flash memory
  4. True
  5. a computer on one chip
  6. True
  7. No
  8. a digital alarm clock
  9. False
  10. False
  11. False
  12. a TV remote
  13. True
  14. the power LED
  15. microcontroller
  16. microcontroller
  17. the voltage regulator
  18. keeps the voltage steady
  19. the pins
  20. False
  21. a spinning top
  22. True
  23. USB or a 9 V battery
  24. True
  25. a washing machine
  26. shows the board is on
  27. Yes
  28. runs the program
  29. True
  30. False
  31. No
  32. True
  33. laptop
  34. True
  35. Yes
  36. True
  37. No
  38. the main chip
  39. brings power and code
  40. a candle

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