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Electronics Worksheet: What Is a Microcontroller

Electronics lesson 21: What is a microcontroller? · Set 251 · 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.

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

Answer key

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

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