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Electronics Worksheet: What Is a Microcontroller

Electronics lesson 21: What is a microcontroller? · Set 305 · 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 part of a microcontroller board connect sensors and LEDs? (a) the pins (b) the main chip (c) the USB port (d) the power LED
  2. 2.True or false: a TV remote usually has a microcontroller inside. (a) False (b) True
  3. 3.True or false: a toy robot usually has a microcontroller inside. (a) True (b) False
  4. 4.True or false: a microcontroller runs one small program. (a) True (b) False
  5. 5.🤖 Microcontroller or laptop: which one has no screen of its own? (a) laptop (b) microcontroller
  6. 6.True or false: a microcontroller needs much more power. (a) False (b) True
  7. 7.🤖 Microcontroller or laptop: which one runs many apps at once? (a) microcontroller (b) laptop
  8. 8.Which job is done by the reset button? (a) restarts the program (b) connect sensors and LEDs (c) keeps the voltage steady (d) brings power and code
  9. 9.Which job is done by the power LED? (a) shows the board is on (b) keeps the voltage steady (c) runs the program (d) connect sensors and LEDs
  10. 10.🤖 Does a smart watch usually have a microcontroller inside? (a) No (b) Yes
  11. 11.Which of these usually has a microcontroller inside? (a) a digital alarm clock (b) a bicycle bell (c) a wind-up toy (d) a spinning top
  12. 12.Which of these usually has a microcontroller inside? (a) a hand pump (b) a candle (c) a spinning top (d) a washing machine
  13. 13.🤖 Which is a safe power source for a beginner microcontroller board? (a) a 230 V cable (b) a wall socket directly (c) USB or a 9 V battery (d) bare mains wires
  14. 14.Which of these has no microcontroller inside? (a) a digital thermometer (b) a hand pump (c) a smart watch (d) a washing machine
  15. 15.Which of these usually has a microcontroller inside? (a) a bicycle bell (b) a toy robot (c) a plain wall switch (d) a spinning top
  16. 16.Which job is done by the USB port? (a) shows the board is on (b) brings power and code (c) keeps the voltage steady (d) runs the program
  17. 17.Which of these has no microcontroller inside? (a) a digital alarm clock (b) a toy robot (c) a TV remote (d) a wind-up toy
  18. 18.🧭 Which part of a microcontroller board brings power and code? (a) the reset button (b) the pins (c) the USB port (d) the voltage regulator
  19. 19.🤖 Microcontroller or laptop: which one needs much more power? (a) laptop (b) microcontroller
  20. 20.Which job is done by the main chip? (a) runs the program (b) connect sensors and LEDs (c) keeps the voltage steady (d) brings power and code
  21. 21.True or false: a TV remote has no microcontroller inside. (a) False (b) True
  22. 22.Which of these usually has a microcontroller inside? (a) a bicycle bell (b) a hand pump (c) a microwave oven (d) a candle
  23. 23.True or false: a microcontroller has a built-in keyboard. (a) False (b) True
  24. 24.🤖 Does a bicycle bell usually have a microcontroller inside? (a) Yes (b) No
  25. 25.Which of these has no microcontroller inside? (a) a toy robot (b) a plain wall switch (c) a microwave oven (d) a digital thermometer
  26. 26.🤖 Does a candle usually have a microcontroller inside? (a) No (b) Yes
  27. 27.Which job is done by the pins? (a) shows the board is on (b) restarts the program (c) connect sensors and LEDs (d) runs the program
  28. 28.🤖 How does a new program get onto a microcontroller board? (a) sent by sound (b) drawn with a pen (c) typed on the chip (d) uploaded over USB
  29. 29.Which of these has no microcontroller inside? (a) a candle (b) a toy robot (c) a digital thermometer (d) a digital alarm clock
  30. 30.True or false: a digital thermometer usually has a microcontroller inside. (a) False (b) True
  31. 31.🧭 Which part of a microcontroller board runs the program? (a) the main chip (b) the voltage regulator (c) the USB port (d) the pins
  32. 32.True or false: a microcontroller runs many apps at once. (a) False (b) True
  33. 33.True or false: a laptop runs one small program. (a) True (b) False
  34. 34.True or false: a laptop uses very little power. (a) False (b) True
  35. 35.🤖 When the main loop of a microcontroller program ends, what happens? (a) it deletes itself (b) it starts again (c) the board breaks (d) it stops forever
  36. 36.True or false: a toy robot has no microcontroller inside. (a) False (b) True
  37. 37.True or false: a hand pump has no microcontroller inside. (a) False (b) True
  38. 38.🤖 Does a toy robot usually have a microcontroller inside? (a) No (b) Yes
  39. 39.True or false: a laptop runs many apps at once. (a) False (b) True
  40. 40.🤖 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

Answer key

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

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