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Electronics Worksheet: What Is a Microcontroller

Electronics lesson 21: What is a microcontroller? · Set 271 · 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.🤖 Microcontroller or laptop: which one uses very little power? (a) laptop (b) microcontroller
  2. 2.🤖 Microcontroller or laptop: which one runs one small program? (a) microcontroller (b) laptop
  3. 3.🤖 Does a microwave oven usually have a microcontroller inside? (a) Yes (b) No
  4. 4.🧭 Which part of a microcontroller board keeps the voltage steady? (a) the pins (b) the power LED (c) the reset button (d) the voltage regulator
  5. 5.🤖 Does a toy robot usually have a microcontroller inside? (a) No (b) Yes
  6. 6.True or false: a wind-up toy has no microcontroller inside. (a) False (b) True
  7. 7.🤖 What is a microcontroller? (a) a computer on one chip (b) a kind of bulb (c) a type of battery (d) a big desktop computer
  8. 8.Which job is done by the power LED? (a) connect sensors and LEDs (b) restarts the program (c) shows the board is on (d) runs the program
  9. 9.True or false: a TV remote has no microcontroller inside. (a) True (b) False
  10. 10.True or false: a candle usually has a microcontroller inside. (a) True (b) False
  11. 11.Which job is done by the pins? (a) connect sensors and LEDs (b) brings power and code (c) shows the board is on (d) runs the program
  12. 12.True or false: a toy robot usually has a microcontroller inside. (a) True (b) False
  13. 13.True or false: a microcontroller has a built-in keyboard. (a) True (b) False
  14. 14.🧭 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
  15. 15.Which of these usually has a microcontroller inside? (a) a candle (b) a hand pump (c) a washing machine (d) a bicycle bell
  16. 16.🤖 Which is a safe power source for a beginner microcontroller board? (a) bare mains wires (b) USB or a 9 V battery (c) a 230 V cable (d) a wall socket directly
  17. 17.Which of these usually has a microcontroller inside? (a) a candle (b) a plain wall switch (c) a toy robot (d) a spinning top
  18. 18.True or false: a wind-up toy usually has a microcontroller inside. (a) True (b) False
  19. 19.🤖 Where does the board keep its program when the power is off? (a) flash memory (b) the USB cable (c) the resistor (d) the power LED
  20. 20.True or false: a microwave oven has no microcontroller inside. (a) True (b) False
  21. 21.Which of these has no microcontroller inside? (a) a washing machine (b) a digital thermometer (c) a microwave oven (d) a wind-up toy
  22. 22.True or false: a microcontroller uses very little power. (a) False (b) True
  23. 23.🤖 Microcontroller or laptop: which one has a built-in keyboard? (a) microcontroller (b) laptop
  24. 24.True or false: a laptop runs one small program. (a) True (b) False
  25. 25.🤖 Does a candle usually have a microcontroller inside? (a) No (b) Yes
  26. 26.🤖 Microcontroller or laptop: which one runs many apps at once? (a) microcontroller (b) laptop
  27. 27.🧭 Which part of a microcontroller board shows the board is on? (a) the USB port (b) the power LED (c) the reset button (d) the voltage regulator
  28. 28.True or false: a laptop uses very little power. (a) True (b) False
  29. 29.🤖 Does a wind-up toy usually have a microcontroller inside? (a) No (b) Yes
  30. 30.🤖 Does a washing machine usually have a microcontroller inside? (a) Yes (b) No
  31. 31.True or false: a microcontroller needs much more power. (a) False (b) True
  32. 32.True or false: a smart watch has no microcontroller inside. (a) False (b) True
  33. 33.True or false: a laptop has no screen of its own. (a) False (b) True
  34. 34.Which job is done by the voltage regulator? (a) restarts the program (b) keeps the voltage steady (c) runs the program (d) brings power and code
  35. 35.True or false: a digital alarm clock has no microcontroller inside. (a) True (b) False
  36. 36.Which job is done by the main chip? (a) keeps the voltage steady (b) shows the board is on (c) runs the program (d) restarts the program
  37. 37.True or false: a washing machine has no microcontroller inside. (a) True (b) False
  38. 38.🤖 Does a digital alarm clock usually have a microcontroller inside? (a) Yes (b) No
  39. 39.🧭 Which part of a microcontroller board connect sensors and LEDs? (a) the main chip (b) the USB port (c) the voltage regulator (d) the pins
  40. 40.True or false: a laptop needs much more power. (a) False (b) True

Answer key

  1. microcontroller
  2. microcontroller
  3. Yes
  4. the voltage regulator
  5. Yes
  6. True
  7. a computer on one chip
  8. shows the board is on
  9. False
  10. False
  11. connect sensors and LEDs
  12. True
  13. False
  14. the USB port
  15. a washing machine
  16. USB or a 9 V battery
  17. a toy robot
  18. False
  19. flash memory
  20. False
  21. a wind-up toy
  22. True
  23. laptop
  24. False
  25. No
  26. laptop
  27. the power LED
  28. False
  29. No
  30. Yes
  31. False
  32. False
  33. False
  34. keeps the voltage steady
  35. False
  36. runs the program
  37. False
  38. Yes
  39. the pins
  40. True

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