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Electronics Worksheet: What Is a Microcontroller

Electronics lesson 21: What is a microcontroller? · Set 300 · 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 runs many apps at once? (a) laptop (b) microcontroller
  2. 2.True or false: a laptop has a built-in keyboard. (a) False (b) True
  3. 3.🤖 Does a digital alarm clock usually have a microcontroller inside? (a) Yes (b) No
  4. 4.🤖 Microcontroller or laptop: which one runs one small program? (a) microcontroller (b) laptop
  5. 5.Which of these has no microcontroller inside? (a) a spinning top (b) a washing machine (c) a toy robot (d) a TV remote
  6. 6.🤖 When the main loop of a microcontroller program ends, what happens? (a) the board breaks (b) it stops forever (c) it deletes itself (d) it starts again
  7. 7.True or false: a microcontroller runs many apps at once. (a) False (b) True
  8. 8.🧭 Which part of a microcontroller board brings power and code? (a) the main chip (b) the power LED (c) the voltage regulator (d) the USB port
  9. 9.🤖 What is a microcontroller? (a) a big desktop computer (b) a kind of bulb (c) a type of battery (d) a computer on one chip
  10. 10.🧭 Which part of a microcontroller board runs the program? (a) the USB port (b) the power LED (c) the reset button (d) the main chip
  11. 11.Which job is done by the power LED? (a) restarts the program (b) shows the board is on (c) connect sensors and LEDs (d) runs the program
  12. 12.Which of these has no microcontroller inside? (a) a microwave oven (b) a smart watch (c) a wind-up toy (d) a digital alarm clock
  13. 13.True or false: a microwave oven has no microcontroller inside. (a) True (b) False
  14. 14.True or false: a wind-up toy has no microcontroller inside. (a) False (b) True
  15. 15.🧭 Which part of a microcontroller board restarts the program? (a) the power LED (b) the pins (c) the USB port (d) the reset button
  16. 16.True or false: a candle has no microcontroller inside. (a) False (b) True
  17. 17.True or false: a plain wall switch has no microcontroller inside. (a) False (b) True
  18. 18.🤖 Does a plain wall switch usually have a microcontroller inside? (a) Yes (b) No
  19. 19.🤖 Microcontroller or laptop: which one has a built-in keyboard? (a) microcontroller (b) laptop
  20. 20.True or false: a microcontroller uses very little power. (a) False (b) True
  21. 21.Which job is done by the voltage regulator? (a) restarts the program (b) brings power and code (c) connect sensors and LEDs (d) keeps the voltage steady
  22. 22.🤖 Microcontroller or laptop: which one uses very little power? (a) laptop (b) microcontroller
  23. 23.🤖 Which is a safe power source for a beginner microcontroller board? (a) a wall socket directly (b) USB or a 9 V battery (c) a 230 V cable (d) bare mains wires
  24. 24.Which of these has no microcontroller inside? (a) a toy robot (b) a washing machine (c) a microwave oven (d) a plain wall switch
  25. 25.🤖 Does a smart watch usually have a microcontroller inside? (a) Yes (b) No
  26. 26.Which of these usually has a microcontroller inside? (a) a candle (b) a bicycle bell (c) a digital alarm clock (d) a spinning top
  27. 27.Which job is done by the USB port? (a) brings power and code (b) runs the program (c) keeps the voltage steady (d) connect sensors and LEDs
  28. 28.True or false: a microcontroller has no screen of its own. (a) True (b) False
  29. 29.Which job is done by the main chip? (a) shows the board is on (b) restarts the program (c) runs the program (d) connect sensors and LEDs
  30. 30.Which of these has no microcontroller inside? (a) a digital alarm clock (b) a microwave oven (c) a candle (d) a smart watch
  31. 31.Which of these usually has a microcontroller inside? (a) a hand pump (b) a spinning top (c) a candle (d) a toy robot
  32. 32.🤖 Where does the board keep its program when the power is off? (a) the USB cable (b) the power LED (c) flash memory (d) the resistor
  33. 33.🤖 Does a microwave oven usually have a microcontroller inside? (a) Yes (b) No
  34. 34.🧭 Which part of a microcontroller board connect sensors and LEDs? (a) the voltage regulator (b) the USB port (c) the main chip (d) the pins
  35. 35.Which of these has no microcontroller inside? (a) a TV remote (b) a digital alarm clock (c) a toy robot (d) a bicycle bell
  36. 36.🤖 Microcontroller or laptop: which one needs much more power? (a) microcontroller (b) laptop
  37. 37.Which job is done by the pins? (a) shows the board is on (b) restarts the program (c) brings power and code (d) connect sensors and LEDs
  38. 38.🤖 Microcontroller or laptop: which one has no screen of its own? (a) laptop (b) microcontroller
  39. 39.🤖 Does a hand pump usually have a microcontroller inside? (a) Yes (b) No
  40. 40.True or false: a toy robot has no microcontroller inside. (a) True (b) False

Answer key

  1. laptop
  2. True
  3. Yes
  4. microcontroller
  5. a spinning top
  6. it starts again
  7. False
  8. the USB port
  9. a computer on one chip
  10. the main chip
  11. shows the board is on
  12. a wind-up toy
  13. False
  14. True
  15. the reset button
  16. True
  17. True
  18. No
  19. laptop
  20. True
  21. keeps the voltage steady
  22. microcontroller
  23. USB or a 9 V battery
  24. a plain wall switch
  25. Yes
  26. a digital alarm clock
  27. brings power and code
  28. True
  29. runs the program
  30. a candle
  31. a toy robot
  32. flash memory
  33. Yes
  34. the pins
  35. a bicycle bell
  36. laptop
  37. connect sensors and LEDs
  38. microcontroller
  39. No
  40. False

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