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Electronics Worksheet: What Is a Microcontroller

Electronics lesson 21: What is a microcontroller? · Set 195 · 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.🤖 What is a microcontroller? (a) a computer on one chip (b) a type of battery (c) a kind of bulb (d) a big desktop computer
  2. 2.🤖 Does a candle usually have a microcontroller inside? (a) Yes (b) No
  3. 3.Which job is done by the USB port? (a) connect sensors and LEDs (b) runs the program (c) brings power and code (d) keeps the voltage steady
  4. 4.🧭 Which part of a microcontroller board restarts the program? (a) the USB port (b) the power LED (c) the pins (d) the reset button
  5. 5.🤖 Microcontroller or laptop: which one uses very little power? (a) microcontroller (b) laptop
  6. 6.🤖 Does a microwave oven usually have a microcontroller inside? (a) No (b) Yes
  7. 7.True or false: a digital thermometer usually has a microcontroller inside. (a) False (b) True
  8. 8.🤖 Does a plain wall switch usually have a microcontroller inside? (a) Yes (b) No
  9. 9.🤖 Does a toy robot usually have a microcontroller inside? (a) Yes (b) No
  10. 10.🤖 Does a wind-up toy usually have a microcontroller inside? (a) No (b) Yes
  11. 11.🤖 Which is a safe power source for a beginner microcontroller board? (a) a wall socket directly (b) a 230 V cable (c) bare mains wires (d) USB or a 9 V battery
  12. 12.Which job is done by the main chip? (a) keeps the voltage steady (b) runs the program (c) restarts the program (d) shows the board is on
  13. 13.🤖 Microcontroller or laptop: which one has a built-in keyboard? (a) microcontroller (b) laptop
  14. 14.🧭 Which part of a microcontroller board runs the program? (a) the voltage regulator (b) the USB port (c) the main chip (d) the reset button
  15. 15.Which of these has no microcontroller inside? (a) a smart watch (b) a washing machine (c) a TV remote (d) a hand pump
  16. 16.True or false: a microcontroller runs many apps at once. (a) False (b) True
  17. 17.True or false: a hand pump has no microcontroller inside. (a) False (b) True
  18. 18.🧭 Which part of a microcontroller board keeps the voltage steady? (a) the reset button (b) the power LED (c) the voltage regulator (d) the USB port
  19. 19.True or false: a laptop needs much more power. (a) True (b) False
  20. 20.Which job is done by the reset button? (a) keeps the voltage steady (b) brings power and code (c) restarts the program (d) shows the board is on
  21. 21.🤖 Does a washing machine usually have a microcontroller inside? (a) Yes (b) No
  22. 22.True or false: a TV remote usually has a microcontroller inside. (a) False (b) True
  23. 23.True or false: a microcontroller has no screen of its own. (a) True (b) False
  24. 24.🤖 Does a spinning top usually have a microcontroller inside? (a) Yes (b) No
  25. 25.🤖 Microcontroller or laptop: which one has no screen of its own? (a) laptop (b) microcontroller
  26. 26.True or false: a microcontroller has a built-in keyboard. (a) True (b) False
  27. 27.Which of these usually has a microcontroller inside? (a) a plain wall switch (b) a digital alarm clock (c) a candle (d) a spinning top
  28. 28.Which of these usually has a microcontroller inside? (a) a bicycle bell (b) a wind-up toy (c) a microwave oven (d) a hand pump
  29. 29.🧭 Which part of a microcontroller board brings power and code? (a) the pins (b) the reset button (c) the power LED (d) the USB port
  30. 30.True or false: a wind-up toy has no microcontroller inside. (a) True (b) False
  31. 31.True or false: a laptop runs one small program. (a) False (b) True
  32. 32.🤖 Does a hand pump usually have a microcontroller inside? (a) No (b) Yes
  33. 33.True or false: a candle has no microcontroller inside. (a) True (b) False
  34. 34.Which job is done by the pins? (a) connect sensors and LEDs (b) restarts the program (c) brings power and code (d) keeps the voltage steady
  35. 35.Which of these has no microcontroller inside? (a) a digital alarm clock (b) a toy robot (c) a microwave oven (d) a spinning top
  36. 36.🤖 Microcontroller or laptop: which one needs much more power? (a) laptop (b) microcontroller
  37. 37.🧭 Which part of a microcontroller board connect sensors and LEDs? (a) the voltage regulator (b) the power LED (c) the reset button (d) the pins
  38. 38.🤖 Microcontroller or laptop: which one runs many apps at once? (a) microcontroller (b) laptop
  39. 39.Which job is done by the voltage regulator? (a) restarts the program (b) brings power and code (c) keeps the voltage steady (d) runs the program
  40. 40.🤖 Where does the board keep its program when the power is off? (a) the resistor (b) the USB cable (c) the power LED (d) flash memory

Answer key

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

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